Threads

Cory · Jan 1, 2018

Is there much difference in colors, contrast, etc. between the Canon 50 1.2 and the much less expensive 1.4 at, let's say, 2.8 (on full-frame if that matters)? Or even a little difference?
Thanks.

Ozarker · Dec 31, 2017

I've got got the itch for old m42 screw mount lenses that manual focus. I thought I read the 5D Mark II can have the focusing screen replaced to help with manual focus. Does anyone have experience with these screens and have a particular style to recommend?

I'll be on the lookout for a camera on Craig's list or eBay. Right now I only have Russian lenses, but wondering how the old Pentax Super-Takumar lenses are? Love the rendering of my Helios lenses, but being able to swap out the focus screen would be a huge help to these old eyes. Don't think I can have that done to my Mark III and would just like a dedicated camera for this purpose.

Canon Rumors · Dec 30, 2017

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There has been a lot of patents post lately as the rumor mill has become quiet likely due to the time of year. As most of you know, there is a new patent translating expert on the scene, which is much appreciated. I am personally the worst at reading engineering & legal speak and I welcome having a replacement to the long gone egami blog. Oddly enough, the latest flurry of patents has lead to some sites claiming they post better patents than other sites. Seriously, you can’t make this stuff up. We generally post the optical formula patents, as I cannot answer questions about sensor and processing technology other than to defer you to <a href="https://www.canonnews.com/">Canon News</a> and <a href="http://www.northlight-images.co.uk/rumours-page/">Northlight Images</a>.</p>
<p>The new year kicks off with CES in January, a show Canon generally only announces some PowerShot cameras and maybe some VIXIA camcorders. We’ve also seen some random accessories and printers announced for the show too. The next major show for Canon is CP+ in February held in Yokohama, Japan. Canon usually announces at least one DSLR for that show.</p>


<p>The rumor mill should start picking back up in the coming weeks, as we expect a lot of DSLRs from Canon in 2018.</p>
<p>This latest optical formula patent comes as an EF-S 18-200mm f/3.5-5.6 IS STM, a follow-up to what is probably my least favourite lens in the Canon lineup.</p>
<p><strong>Japan Patent Application 2017-219655:</strong></p>
<ul>
<li><strong>Focal distance: </strong>18.60 49.08  193.00</li>
<li><strong>F number: </strong>3.59 4.89 5.88</li>
<li><strong>Field angle: </strong>36.29 15.55 4.05</li>
<li><strong>Image height: </strong>13.66 13.66 13.66</li>
<li><strong>Length of the lens:</strong> 145.04 172.07 200.21</li>
<li><strong>BF</strong>: 38.23 59.69 74.12</li>
</ul>
<p>Canon would be well served to get this lens to market and fix the ailments that have driven me bonkers with it. Most notably the lens creep, dust accumulation and average optical performance.</p>
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Frodo · Dec 29, 2017

I took my 5DsR hiking over the Christmas break. Most of the time it lived on by 24-105 in my Crumpler "4 million dollar home" over my shoulder and clipped to by backpack. Once I scrambled up a slope with my camera on the strap over my neck and it hit a rock and cracked the cover over the rear LCD screen (see photo). I doubt if an aftermarket screen protector would have prevented the damage, especially as it looks like the impact was from the side.

The display functions perfectly (and now that I am used to the crack, it doesn't bother me), but I have two questions:

- Is the protective cover user replaceable?
That for the 5D2 was replaceable as there was an air gap between the cover and the LCD screen. I think that changed in the 5D3. I understand that the 5DsR has the same rear screen as the 5D3 (please correct me if I'm wrong).

- Will the crack be more vulnerable to water ingress?
I guess that if the cover is bonded to the actual screen and if the bonding material is not cracked (I presume it is more flexible), there should not be a problem.
I could apply an aftermarket screen protector, but I dislike them as they reduce clarity and contrast of the screen.

Thanks

TWI by Dustin Abbott · Dec 29, 2017

Hi everyone,

I’ve wrapped up my coverage of the new Canon 85mm f/1.4L IS. It’s a solid lens from Canon, but faces some stiff competition. I’ve done a lot of comparisons to other lenses as a part of this series, and I feel confident in my conclusions after all of that.

Written Review: http://bit.ly/85LIStwi
Video Playlist: http://bit.ly/85LISpl
Final Video Review: http://bit.ly/85LISda
Image Gallery: http://bit.ly/canon85LISig

Included in the playlist are comparisons to the Tamron 85mm f/1.8 VC: http://bit.ly/85LISiq2
Sigma 85mm f/1.4 ART: http://bit.ly/canVSsig85
Zeiss Otus 85mm f/1.4: http://bit.ly/otusvcanon

Some interesting observations as a part of all this. Enjoy!

Canon Rumors · Dec 29, 2017

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<em><strong>*Update*</strong> I removed the word “clone”, as the optical layouts are someone different (Thanks Keith).</em></p>
<p style="font-weight: 400;"><strong>A Professional Lens of Capturing Grand View</strong></p>
<p style="font-weight: 400;"><strong>YONGNUO Ultra-wide Angle Prime Lens YN14mm F2.8</strong></p>
<p style="font-weight: 400;"><b>¨ </b><strong>114°</strong><strong> Ultra-wide Angle</strong></p>
<p style="font-weight: 400;">The diagonal angle of view is about 114°. For YN14mm F2.8 helps to collect the vast landscape and giant structures, it’s easier to show a grand and solemn atmosphere.</p>
<p style="font-weight: 400;"><strong>High-precision,Ultra-low Dispersion and Aspherical Lens</strong></p>
<p style="font-weight: 400;">It carries two high-precision aspherical glass lenses, one of which adopts ultra-low dispersion lens, which effectively compensates various optical aberration,  minimizes chromatic aberrations, and provides excellent sharpness and color correction.</p>
<p><!--more--></p>
<p style="font-weight: 400;"><b>¨ </b><strong>Precision-machined Abnormal Dispersion Lens</strong></p>
<p style="font-weight: 400;">YN14mm 2.8 adopts 1pcs of abnormal dispersion lens, which helps to better control the dispersion problem from super-wide angle and large aperture, and, helps to improve second order spectrum.</p>
<p style="font-weight: 400;"><b>¨ </b><strong>Glass Optical Lens, Multilayer Coating</strong></p>
<p style="font-weight: 400;">It adopts glass optical lens and multilayer coating technology to effectively increase light transmittance and minimize backlight ghost image and glare.</p>
<p style="font-weight: 400;"><b>¨ </b><strong>Firmware Upgrade</strong></p>
<p style="font-weight: 400;">YN14mm F2.8 is equipped with USB port. The users can download the latest firmware from the official YONGNUO website and update the lens to keep the best compatibility and performance.</p>
<p style="font-weight: 400;"><b>¨ </b><strong>F2.8 Large Aperture</strong></p>
<p style="font-weight: 400;">With F2.8 bright and large aperture, background blurred, subject highlighted.</p>
<p style="font-weight: 400;"><b>¨ </b><strong>Focus Modes: Auto Focus (AF) and Manual Focus (MF)</strong></p>
<p style="font-weight: 400;">YN14mm F2.8 supports auto focus and manual focus. The focus mode can be selected according to practical requirement.</p>
<p style="font-weight: 400;"><strong>7 pieces of Aperture Blades</strong></p>
<p style="font-weight: 400;">YN14mm F2.8 has <strong>7 pieces of aperture blades</strong>, which helps to take picture of circular defocused spots and helps to reduce the aperture and take picture of 14-star effect.</p>
<p style="font-weight: 400;"><b>¨ </b><strong>Durable Metal Mount</strong></p>
<p style="font-weight: 400;">YN14mm F2.8 adopts chrome-plated and high-accuracy metal mount. It’s wearable, corrosion-resistant, and highly consistent with the camera.</p>
<p style="font-weight: 400;"><b>¨ </b><strong>Focus Distance Indicator</strong></p>
<p style="font-weight: 400;">YN14mm F2.8 is equipped with focus distance indicator. It’s convenient for you to judge the distance and the depth of field.</p>
<p style="font-weight: 400;"><b>¨ </b><strong>Gold-plating Technology</strong></p>
<p style="font-weight: 400;">The metal contacts adopts gold-plating technology,which brings the advantages of excellent signal transduction ,perfect image quality and new performance breakthroughs.</p>
<p style="font-weight: 400;"><strong>Specifications</strong></p>


<table>
<tbody>
<tr>
<td width="254"> Focal Length</td>
<td width="254">14mm</td>
</tr>
<tr>
<td width="254"> Lens Structure</td>
<td width="254">9 groups 12pcs</td>
</tr>
<tr>
<td width="254"> Diaphragm Leaves</td>
<td width="254">7pcs</td>
</tr>
<tr>
<td width="254"> Minimum Aperture</td>
<td width="254">22</td>
</tr>
<tr>
<td width="254">Minimum Focus Distance</td>
<td width="254">Approx 0.2m</td>
</tr>
<tr>
<td width="254">Maximum Amplification Factor</td>
<td width="254">Approx 0.15x</td>
</tr>
<tr>
<td width="254">Drive System</td>
<td width="254">DC Motor</td>
</tr>
<tr>
<td width="254">Maximum Diameter and Length</td>
<td width="254">Approx Φ86×105mm</td>
</tr>
<tr>
<td width="254">Weight</td>
<td width="254">Approx 780g</td>
</tr>
</tbody>
</table>

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Canon Rumors · Dec 29, 2017

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Canon Asia has posted an interview article with the developers of the Canon EF 85mm f/1.4L IS USM. The developers initially thought it would be impossible to design such a lens and keep it under 1 kg in weight and have a compact design.</p>


<blockquote><p>When the product planning department requested development of this lens, our development department was initially stumped by the high degree of difficulty in the design. When equipping large aperture lenses with image stabilisation, the arrangement of the focus and image stabilisation groups is an important factor for determining the size and weight of the lens. Lenses with a small f-number (large aperture) characteristically have large diameter glass. The image stabilisation group, which is a part of the optical system, needs to be able to move to compensate for camera shake, which naturally makes the group heavy. An actuating force is also required to drive the group, and this further adds to the lens’ size and weight. Therefore, the development team’s first impression was that it would be almost impossible to develop the reasonably-sized, appealingly-priced 85mm f/1.4 lens with image stabilisation that the product planning department had requested. <a href="https://snapshot.canon-asia.com/article/en/ef85mm-f14l-is-usm-developer-interviews-1">Read the full article</a></p></blockquote>
<p>The Canon EF 85mm f/1.4L IS USM is <a href="https://snapshot.canon-asia.com/article/en/ef85mm-f14l-is-usm-developer-interviews-1">available to rent at Lensrentals.com</a></p>
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bod · Dec 29, 2017

When rumours were posted on this site several years ago about possible new Tilt Shift lenses being in the works from Canon I was hoping that they would eventuate and was really pleased this year when the rumours proved to be correct. I have owned the TS-E 24 II for some time and it is a fine lens. I value the added flexibility/possibilities that tilt and shift offer and enjoy the processes involved for the photographer in using a tilt shift lens.

Normally I wait for plenty of reviews, particularly from Bryan at TDP and aim to rent and try before I buy. However Canon Australia had a good December discount going and surprisingly to me included the new TS-E lenses. Having read the very positive ePhotozine review (thanks to CR for letting me know about this review) I decided to take the plunge. I have been using the 50 TS-E lens over the last couple of days when family Christmas festivities have permitted.

Some images I have taken are in a new thread for this lens in the image gallery.

My first impressions are:
• The look and feel of the lens body is very similar to the Canon TS-E 24mm f/3.5L II
• The size of the lens is very similar to the Canon TS-E 24mm f/3.5L II, the 50 being a bit longer
• Ergonomically both lenses are similar to use as regards organisation of the Shift, tilt and rotate functions.
• The MF ring has a nice feel, smooth but with enough resistance which suits me fine as it minimises the possibility of accidentally changing focus when making other adjustments.
• Full marks to Canon for the larger knob on the Tilt adjustment. This is much easier to use. Great that it is on the tilt adjustment since this is the one I am more likely to be making fine adjustments too.
• The weight specifications say the 50 is 945 gm (v 780 for the TS-E 24 II) which ephotozine described as hefty but well balanced on their 5DS R. I think weight is a very subjective/relative topic. If your normal setup is an EOS M plus EFM 22 then hefty would be right. If like me you regularly use fast primes with a DSLR then 945 is within a familiar range and equally so if you regularly use one of the Canon f/2.8 zooms. I like the feel and balance of the 50 TS-E on my 6D and have carried it in my hands and used it for 3 hours several times without discomfort. Since a tilt shift lens is going to see plenty of tripod work then weight is less of any issue then anyway.

Overall I have loved using this lens so far. It is a good looking optic and feels well balanced on my 6D. Of the images I have taken so far I like the colour and rendering of the lens. I will leave others to fully test the lens optically but I have not picked up any issues yet.

Canon Rumors · Dec 28, 2017

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Lensrentals.com has released their yearly list of the most rented gear in their inventory. Not surprisingly, the list is dominated by Canon and Sony.</p>
<table width="100%">
<tbody>
<tr>
<td bgcolor="#f6f6f6"><strong>1</strong></td>
<td class="tg-yw4l"><a href="http://www.pjatr.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-24-70mm-f2.8l-ii">Canon EF 24-70mm f/2.8L II</a></td>
<td bgcolor="#f6f6f6"><strong>11</strong></td>
<td class="tg-yw4l"><a href="http://www.pntrs.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-24-105mm-f4l-is">Canon EF 24-105mm f/4L IS</a></td>
</tr>
<tr>
<td bgcolor="#f6f6f6"><strong>2</strong></td>
<td class="tg-yw4l"><a href="http://www.pntrac.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-70-200mm-f2.8l-is-ii">Canon EF 70-200mm f/2.8L IS II</a></td>
<td bgcolor="#f6f6f6"><strong>12</strong></td>
<td class="tg-yw4l"><a href="http://www.pjtra.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-100mm-f2.8l-is-macro">Canon EF 100mm f/2.8L IS Macro</a></td>
</tr>
<tr>
<td bgcolor="#f6f6f6"><strong>3</strong></td>
<td class="tg-yw4l"><a href="http://www.pntrs.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-5d-mark-iii">Canon EOS 5D Mark III</a></td>
<td bgcolor="#f6f6f6"><strong>13</strong></td>
<td class="tg-yw4l"><a href="http://www.pjatr.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-100-400mm-f4.5-5.6l-is-ii">Canon EF 100-400mm f/4.5-5.6L IS II</a></td>
</tr>
<tr>
<td bgcolor="#f6f6f6"><strong>4</strong></td>
<td class="tg-yw4l"><a href="http://www.gopjn.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-5d-mark-iv">Canon EOS 5D Mark IV</a></td>
<td bgcolor="#f6f6f6"><strong>14</strong></td>
<td class="tg-yw4l"><a href="http://www.pntrac.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-85mm-f1.2l-ii">Canon EF 85mm f/1.2L II</a></td>
</tr>
<tr>
<td bgcolor="#f6f6f6"><strong>5</strong></td>
<td class="tg-yw4l"><a href="http://www.pntra.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fsony-alpha-a7s-ii">Sony Alpha a7S II</a></td>
<td bgcolor="#f6f6f6"><strong>15</strong></td>
<td class="tg-yw4l"><a href="http://www.gopjn.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-lp-e6n-battery">Canon LP-E6N Battery</a></td>
</tr>
<tr>
<td bgcolor="#f6f6f6"><strong>6</strong></td>
<td class="tg-yw4l"><a href="http://www.pntrac.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fsony-np-fw50-battery">Sony NP-FW50 Battery</a></td>
<td bgcolor="#f6f6f6"><strong>16</strong></td>
<td class="tg-yw4l"><a href="http://www.gopjn.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fnikon-d750">Nikon D750</a></td>
</tr>
<tr>
<td bgcolor="#f6f6f6"><strong>7</strong></td>
<td class="tg-yw4l"><a href="http://www.pjtra.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-50mm-f1.2l">Canon EF 50mm f/1.2L</a></td>
<td bgcolor="#f6f6f6"><strong>17</strong></td>
<td class="tg-yw4l"><a href="http://www.pjatr.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fsennheiser-g3-wireless-mic-kit-freq-a">Sennheiser G3 Wireless Mic Kit -Freq A</a></td>
</tr>
<tr>
<td bgcolor="#f6f6f6"><strong>8</strong></td>
<td class="tg-yw4l"><a href="http://www.pjtra.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fsony-fe-24-70mm-f2.8-gm">Sony FE 24-70mm f/2.8 GM</a></td>
<td bgcolor="#f6f6f6"><strong>18</strong></td>
<td class="tg-yw4l"><a href="https://www.lensrentals.com/rent/sony-fe-70-200mm-f2.8-gm-oss">Sony FE 70-200mm f/2.8 GM OSS</a></td>
</tr>
<tr>
<td bgcolor="#f6f6f6"><strong>9</strong></td>
<td class="tg-yw4l"><a href="http://www.gopjn.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-6d">Canon EOS 6D</a></td>
<td bgcolor="#f6f6f6"><strong>19</strong></td>
<td class="tg-yw4l"><a href="http://www.pntra.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-35mm-f1.4l-ii">Canon EF 35mm f/1.4L II</a></td>
</tr>
<tr>
<td bgcolor="#f6f6f6"><strong>10</strong></td>
<td class="tg-yw4l"><a href="http://www.gopjn.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-70-200mm-f2.8l">Canon EF 70-200mm f/2.8L</a></td>
<td bgcolor="#f6f6f6"><strong>20</strong></td>
<td class="tg-yw4l"><a href="http://www.pjtra.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Frent%2Fcanon-16-35mm-f2.8l-iii">Canon EF 16-35mm f/2.8L III</a></td>
</tr>
</tbody>
</table>
<p>A couple of things on the surprise me, firstly the EF 70-200mm f/2.8L. There’s absolutely nothing wrong with the lens, and if you’re shooting sports, the IS really isn’t needed. The second surprise for me is how high on the list the EF 50mm f/1.2L is, I didn’t think it would be outrenting the EF 85mm f/1.2L II or the EF 100-400mm f/4-5.6L IS II.</p>


<p>Looking at the list, I think Canon is still doing pretty well in the United States, and it’s going to take a lot more from Sony to surpass Canon in marketshare.</p>
<p>You can read all of the rental lists over at <a href="http://www.pjtra.com/t/TUJGRktHSkJGRk5HSklCRkpOSkVN?url=https%3A%2F%2Fwww.lensrentals.com%2Fblog%2F2017%2F12%2Fmost-popular-photography-and-videography-gear-rented-in-2017%2F">Lensrentals.com</a>.</p>
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SkynetTX · Dec 28, 2017

I have finished it so I upload it here: the specifications book of Canon EOS 9000D. Remember that I've designed it mainly for myself but others may also find it useful. So do not ask for movie shooting as this is a camera. If you want to shoot movies, use a camcorder. Do not ask for Scene Intelligent Auto mode and LiveView support as this is a DLSR camera. If you want to shoot in fully automatic mode using the LCD screen buy an IXUS 285 or PowerShot 620 or whatever you like.

Canon Rumors · Dec 27, 2017

HTML:

We’ve been told that Canon will announce at least 2 new “big white” lenses in 2018. This is a World Cup year and the event may be used for testing the final versions of the lenses.</p>
<p>The new patents seem to be geared towards further weight reduction of the big white lenses as well as a bunch of ways to reduce abberations.</p>
<p>None of of the following patents mention IS, but looking at the optical formula, you can see grouping of elements that points to IS being included.</p>
<p><strong>Japan Patent Application <a href="https://www.canonnews.com/a-flurry-of-super-telephoto-patent-applications-appear">2017-215495</a></strong></p>
<ul>
<li>400mm f/2.8</li>
<li>300mm f/2.8</li>
<li>500mm f/4.0</li>
</ul>
<p><strong>Japan Patent Application <a href="https://www.canonnews.com/a-flurry-of-super-telephoto-patent-applications-appear">2017-215494</a></strong></p>


<ul>
<li>400mm f/2.8</li>
<li>500mm f/4.0</li>
<li>600mm f/4.0</li>
<li>800mm f/5.6</li>
</ul>
<p><strong>Japan Patent Application <a href="https://www.canonnews.com/a-flurry-of-super-telephoto-patent-applications-appear">2017-215493</a></strong></p>
<ul>
<li>300mm f/2.8</li>
<li>400mm f/2.8</li>
<li>500mm f/4.0</li>
<li>600mm f/4.0</li>
<li>800mm f/5.6</li>
</ul>
<p><strong>Japan Patent Application <a href="https://www.canonnews.com/a-flurry-of-super-telephoto-patent-applications-appear">2017-215492</a></strong></p>
<ul>
<li>300mm f/2.8</li>
<li>400mm f/2.8</li>
<li>500mm f/4.0</li>
<li>600mm f/4.0</li>
<li>800mm f/5.6</li>
</ul>
<p><strong>Japan Patent Application <a href="https://www.canonnews.com/a-flurry-of-super-telephoto-patent-applications-appear">2017-215491</a></strong></p>
<ul>
<li>400mm f/2.8</li>
<li>800mm f/5.6</li>
<li>200mm f/2.0</li>
</ul>
<p>We had been told that it was possible Canon would return to the EF 200mm f/1.8L and add IS, however the latter patent seems to show it’ll remain EF 200mm f/2L IS and receive a version 2.</p>
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Canon Rumors · Dec 27, 2017

HTML:

A new ultrawide zoom lens for APS-C EOS M cameras has appeared. This may be a replacement for the excellent EF-M 11-22mm f/4-5.6 IS STM. The only knock against that lens is that it’s not wide enough. Image Stabilization is not part of the patent, which is a notable omission.</p>
<p><strong>Japan Patent Application 2017-219644</strong></p>


<ul>
<li><strong>Focal distance: </strong>9.27  13.35  17.70</li>
<li><strong>F number: </strong>4.12  4.84  5.57</li>
<li><strong>Field angle: </strong>55.84  45.67 37.66</li>
<li><strong>Image height: </strong>13.66 13.66 13.66</li>
<li><strong>Whole length of the lens:</strong> 61.48 56.10 54.43</li>
<li><strong>BF: </strong>10.29 13.62 16.52</li>
</ul>
<p><a href="https://www.canonnews.com/mirrorless-9-18mm-uwa-lens-patent">Canon News</a> thinks that the primary goal of the design is to keep the focus group as small as possible to speed up AF on mirrorless cameras and for video.</p>
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Canon Rumors · Dec 27, 2017

HTML:

Canon is clearly working on new ultra wide zoom lenses to add to the lineup, we have <a href="http://www.canonrumors.com/patent-canon-ef-17-35mm-f-4-5-6-is-stm/">yesterdays patent showing a EF 17-35mm f/4-5.6 IS STM</a> and today we see a patent application that covers 6 different ultra wide angle zoom optical formulas for APS-C sensors.</p>
<p><strong>Optical Formulas in Japan patent application: 2017-207649 </strong></p>


<ul>
<li>14-35mm f/2.8</li>
<li>9-22mm f/2.8</li>
<li>10-35mm f/2.8-3.5</li>
<li>18-80mm f/4.0</li>
<li>18-75mm  f/4.0</li>
<li>12-30mm f/2.8</li>
</ul>
<p>This patent application may pertain to development of lenses that have already been released, or they could be part of future lens designs.</p>
<p>Read the full breakdown of the patent application <a href="https://www.canonnews.com/new-patent-application-for-a-variety-of-high-end-aps-c-uwa-zoom-lenses">here</a>.</p>
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Canon Rumors · Dec 27, 2017

HTML:

A Canon patent application shows what looks to be expanding on ASC (air sphere coating).</p>
<p>As you can see in the image below, ASC in fact looks like little bubbles</p>
<p><img class="aligncenter size-full wp-image-32722" src="http://www.canonrumors.com/wp-content/uploads/2017/12/JP2017-167271.png" alt="" width="297" height="223" srcset="http://www.canonrumors.com/wp-content/uploads/2017/12/JP2017-167271.png 297w, http://www.canonrumors.com/wp-content/uploads/2017/12/JP2017-167271-225x169.png 225w" sizes="(max-width: 297px) 100vw, 297px" /></p>


<p>From <a href="https://www.canonnews.com/patent-application-for-new-lens-coating">Japan Patent Application</a>: 2017-167271</p>
<blockquote><p>To provide an optical member having an anti-reflection film with high strength, uniform refractive index distribution, and low scattering, and a manufacturing method for the optical member.</p></blockquote>
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Canon Rumors · Dec 26, 2017

HTML:

Tamron has launched a new VIP program for people that own 4 or more Tamron lenses that you have purchased and registered since May 2011.</p>
<p><strong>Membership Levels and 2018 Benefits:</strong></p>
<h4>TAMRON SILVER TIER</h4>
<p><em><strong>Tamron owners who have purchased and registered four (4) lenses during the time-frame of May 2011 and January 15, 2018 are eligible for these 2018 membership perks: </strong></em></p>
<ul>
<li>Welcome gift</li>
<li>Tamron magazine mailed 3X per year</li>
<li>$50 bonus rebate towards any Tamron lens</li>
<li>50% off of one Tamron event ticket (excludes summit)</li>
<li>10% discount on non-warranty repair</li>
<li>Invitation to participate in VIP Member contest</li>
<li>Membership Card w lanyard</li>
</ul>
<p><!--more--></p>
<h4>TAMRON GOLD TIER</h4>
<p><em><strong>Tamron owners who have purchased and registered five (5) lenses during the time-frame of May 2011 and January 15, 2018 are eligible for these 2018 membership perks:</strong></em></p>
<ul>
<li>Welcome gift</li>
<li>Tamron t-shirt</li>
<li>Tamron magazine mailed 3X per year</li>
<li>$75 bonus rebate towards any Tamron lens</li>
<li>50% off of two Tamron event tickets (excludes summit)</li>
<li>Free pass to one Tamron event (excludes summit)</li>
<li>15% discount on non-warranty repair</li>
<li>Invitation to participate in VIP Member contest</li>
<li>Membership Card w lanyard</li>
</ul>
<h4>TAMRON PLATINUM TIER</h4>
<p><em><strong>Tamron owners who have purchased and registered six or more (6+) lenses during the time-frame of May 2011 and January 2018 are eligible for these 2018 membership perks:</strong></em></p>


<ul>
<li>Welcome gift</li>
<li>Tamron t-shirt</li>
<li>Tamron LL Bean vest</li>
<li>Tamron magazine mailed 3X per year</li>
<li>$100 bonus rebate towards any Tamron lens</li>
<li>50% off of three Tamron event tickets (excludes summit)</li>
<li>Free passes to two Tamron events (excludes summit)</li>
<li>20% discount on non-warranty repair</li>
<li>Lifetime Limited Warranty on any new lens purchase from year of Club induction</li>
<li>Free shipping on repairs (Tamron USA will send a pre-paid shipping label to receive your lens)</li>
<li>Free 2-week lens loaners (if available, with signed loaner agreement)</li>
<li>Exclusive Tamron Photo Tips Hotline for questions about photo techniques and tips on how to use your lens and camera</li>
<li>Invitation to a Tamron Workshop Summit (see details below)</li>
<li>Invitation for chance to be profiled on website</li>
<li>Invitation to participate in VIP Member contest</li>
<li>Membership Card w lanyard</li>
</ul>
<h4>RESTRICTIONS and ELIGIBILITY</h4>
<p>The membership tiers will be assessed once per year. On subsequent years, VIP Club membership status will be announced to all Members on February 15 of each year, with the registration deadline being January 15 of the same year.</p>
<p>Not every lens qualifies towards the minimum of four for the VIP tiers. Per their website, and this is my interpretation of their rules:</p>
<ul>
<li>only Tamron model lenses that were current at the time of purchase count towards the tiers. Current lenses are listed on the Tamron USA website at tamron-usa.com</li>
<li>Teleconverters and Tap-In Console are not considered Eligible Purchases</li>
<li>Multiple purchases of same lens model, even if different mounts, are not considered Eligible Purchases</li>
<li>Each Member must own his/her own unique Tamron model lens</li>
<li>Grey market, open stock, and refurbished lenses are NOT eligible purchases</li>
<li>Only new and current Tamron lenses purchased from an authorized Tamron USA retailer are eligible purchases</li>
</ul>
<p>Read more at <a href="http://www.tamron-usa.com/vipclub/">Tamron-usa.com/vipclub</a></p>
<p><em>thanks Roger</em></p>
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yeahright · Dec 26, 2017

Dear forum!

On the 5D4 I regularly use the zoom button (configured to show the actual pixel size) for evaluating the sharpness of a photo. When shooting using the viewfinder the shown magnified area is around the selected autofocus point, which is what I want. On photos taken in live view mode, however, the zoomed area is always in the center of the image, no matter where the focus area was, which is annoying. Is there a way to make the zoom function behave the same way for viewfinder as well as for live view shots?

Many thanks,

Markus

Canon Rumors · Dec 26, 2017

HTML:

We’ve heard some chatter that Canon would continue to develop it’s non-L zoom lenses for full frame camera lineup and this patent for an EF 17-35mm f/4-5.6 IS would seem to fit into that segment.</p>
<p><a href="https://www.canonnews.com/canon-patents-a-17-35-is-4-56">Canon News</a>, a new leader in patent tracking found this one.</p>
<p><strong>Canon EF 17-35mm f/4-5.6 IS STM Optical Formula</strong></p>


<ul>
<li><strong>Focal distance:</strong> 17.50  25.12  34.09</li>
<li><strong>F number:</strong> 4.00 4.85   5.88</li>
<li><strong>A half field angle (degree):</strong> 51.03  40.73  32.40</li>
<li><strong>Image height:</strong> 21.64  21.64  21.64</li>
<li><strong>Whole length of the lens:</strong> 130.88 128.52 134.05</li>
<li><strong>BF:</strong> 37.60  49.75  64.06</li>
</ul>
<p><em>Japan patent application 2017-161568</em></p>
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Canon Rumors · Dec 26, 2017

HTML:

Keith over at Northlight has uncovered more sensor related patents.</p>
<p>The first patent uses a stacked sensor design to move AF and liveview data handling off the sensor part of the chip, to allow switching between them – faster and

lower power. [<a href="http://pdfaiw.uspto.gov/.aiw?PageNum=0&docid=20170366776">USPTO</a>]</p>


<p>The second patent shows the use of a different MIS style (Metal/Insulator/<wbr />Semiconductor) light sensitive pixel elements, as opposed to the conventional photodiode setup. [<a href="http://pdfaiw.uspto.gov/.aiw?PageNum=0&docid=20170366775">USPTO</a>]</p>
<p><a href="http://www.northlight-images.co.uk/canon-camera-rumours-and-info/">Head over to Northlight</a> for more summaries are images.</p>
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scottkinfw · Dec 24, 2017

Hi all and Happy Holidays to my CR Friends.

I received a B&H gift card, and would like to apply it towards a mono light.

I am new to Monolights and don't even know what features are most important.

Here is information to help with recommendations:

Gear to use it with 5DII, 5DIIIm 1DXII, 600-EX-RT X 2, ST-E3-RT.

I want a monolight with AC/DC (battery) so it could be portable.
I want the monolight to be completely compatible with the 600-EX-RT
The monolight must be durable, and have light that can be replaced if needed.
Effective Modeling light
Powerful enough and fast recycling time.
I'm not sure how fast is fast enough for flash duration
Good quality, durable
Ability to use diffusers etc.
I want a monolight that will be useful well into the future, and be upgradeable if appropriate.
I woiuld like to spend around $600.00 =/- if possible.

I welcome and greatly appreciate input about contending products, and thank you for your time and expertise.

Happy Holiday season to all

Scott

sulla · Dec 24, 2017

Dear all!

I experience a slow startup time (boot time, wakeup from sleep) when using a CF card in my 5D3, firmware 1.2.3

I measured boot time of the camera from swithing the main dial until the AF symbol appears in the viewfinder

without memory cards to be <0,5 seconds
with SD card only to be ~0,7 seconds
with CF card only to be ~1,9 seconds
with CF+SD cards to be ~1,9 seconds, same as with CF only

I use

SD: a SanDisk Extreme 45MB/s class 10, 32GB
CF: a Kingston ultimate 600x, 32GB, UDMA 6 from 2010. When I use an older and slower card, Kingston elite pro, 32GB, 133x, bootup times are slightly longer, 2,3 secs.

Both cards have just been formatted in camera.

Anybody knows, what is going on? Are the CF cards too old and slow? sequential read speed in a USB 3 card reader is high, however, ~100MB/sec.

Merry Christmas,
Sulla

niels123 · Dec 23, 2017

For my new 5Ds R, I ordered the 5Ds / 5Ds R S-type screen from focusingscreen.com. Although I am aware that replacement of the standard screen is quite easy, I really do prefer to have it done by a professional.

Unfortunately, the professional concluded that the screen is too thick and that it doesn't fit ('they just took a 5D III screen and filed off some notches'). I started a paypal dispute with the seller so I hope I can get my money back, but now I still have the original screen in my 5Ds R.

Since I do prefer to have a high-quality screen for my 5Ds R, I am asking for advice here: if you have experience, comments or suggestions please let me know. What I need is a s-type screen with no loss of autofocus accuracy (with AF lenses) that fits well with no risk of coming loose one day.

Dec 23, 2017

With the recent deals on refurbished 6d mk2 with the kit lens for ~ 1200 usd among other deals, I've seen a few posts elsewhere speculating about canons place in the market and the possible suggestions on the sales performance of the camera.

I'm not thinking that canon are doomed or anything, but is the price reduction of this amount with the short time after release usual for canon?
If not, could it be a hint at a new model coming up sooner?

AlanF · Dec 22, 2017

I have been doing many comparisons of my Canon 100-400mm II (I have looked at 3 copies over the years) and my new Tamron 100-400mm, and looking at the records of the 5 copies of the Sigma 100-400mm I have tested.

On the 5DSR and 5DIV, the Canon has the best IS and is the most stable in the viewfinder, the Tamron next best, perhaps a stop worse in practice, and the Sigma the poorest. The AF of the Canon is the fastest, the Tamron next and the Sigma somewhat behind. The IQs are quite similar.

Matters are different on the M5. The Tamron really comes into its own and has at least equal IQ to the Canon at longer distances. The Sigma is hopeless and doesn't focus properly and gives blurred images - something I found early on with liveview but ignored. I have just been told on one of my exceedingly rare visits to Fred Miranda that it is known that some Sigma lenses are not compatible with liveview.

In a big surprise this evening, I found that at 1.6m close up, not only is the Tamron sharper than the Canon on both the 5DSR and M5, the image is 20% bigger in linear dimensions (the Canon is known to have severe focus breathing). At 19m, the Tamton's image is 4.6% larger. In practice, the magnification of the Canon at its MFD is no greater than the Tamron at its longer MFD because of the focus breathing.

I think the Tamron 100-400mm is by far the best long telephoto for the M5. It is light, balances very nicely, the focus speed is limited by the camera and so the faster AF of the Canon lenses is neutralised. The Tamron seems more sensitive to mirror slap on the 5DSR, and this doesn't affect the image from the M5.

Canon Rumors · Dec 22, 2017

HTML:

I’d like to wish everyone out there a Merry Christmas and Happy Holiday. It has been great to have all of you reading and contributing to this little spot on the web.</p>


<p>Have a great time with your loved ones.</p>
<p>Please do not drink and drive, that’s near a dear to my heart.</p>
<p>Happy shooting,

Craig // Canon Rumors Guy</p>
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xps · Dec 22, 2017

Found at:
https://www.youtube.com/watch?time_continue=649&v=Za2AeCujDZk

Enjoy!

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