Threads

Sabaki · Apr 16, 2014

I just attended a Canon Roadshow over the weekend where one of the speakers was extolling the virtues of Back Button Focussing (BBF).

The presenter explained about using BBF to gain sharpness on your subject and then recomposing your frame before engaging the shutter. It seems so logical and more precise to me!

His presentation finally made me 'get' BBF and I've decided to convert. Well, once the muscle memory kicks in

ma5ter5 · Apr 16, 2014

I am lucky to say that I have a permit to hike the John Muir Trail this August and cannot wait to bring my camera along with me. I currently have a 40D, 24-70 mk I, and 15 fisheye. I would like to get wider shots than the 24-70 on my crop, and am kind of forced to make a decision: get a FF body or a wider lens. I'm not 100% sold on any FF body as being the one for me (new or used), so I'm leaning towards new glass. Weight and price are not of concern to me as this is going to be one epic trip. The obvious choice seems to be the 16-35 for superior IQ over the 17-40, despite weight and cost. But are there primes I should consider as well? I certainly wouldn't hesitate considering one, especially if the IQ and weight are superior by comparison to the 16-35.

Thanks!

JumboShrimp · Apr 15, 2014

Being the proud new owner of the Canon 50/1.2L, and seeing all the hype regarding the new Zeiss Otus 55/1.4, I thought I would dig through my old issues of Popular Photography for a comparison of their respective "SQF" charts and other test data. Much to my pleasant surprise, it's seems to be a literal dead heat, at least from their efforts. (Both charts are attached below - Zeiss on the left, Canon on the right.) If nothing else, an interesting comparison from another source.

As an aside, I don't think I have ever run across a CR thread that mentions tests in Popular Photography magazine. Any reasons/opinions on this? Just curious ...

omar · Apr 15, 2014

My friend took some images of a model for me
He took the photos portrait

I'm trying to upload into Wordpress to create a product
The problem is that it makes the images horizontal

I've tried a zillion things and am going nuts!
I'm guessing there's some extra info with the picture that says the camera was slanted or something?
Anyone know how to get rid of the information in bulk??

Thanks

Omar

Bill · Apr 15, 2014

When in dark lighting, when the AF is trying to find focus, the lens makes HARD stops going back & forth, trying to find focus....making small but noticeable clunking noises. I can even feel the vibrations coming from the lens. It sort of reminds me of a car trying to get a parking space & keeps bumping into other cars. My other Cannon lenes do not do this. Is this normal for this lens? Thanks, Bill

xvnm · Apr 15, 2014

Hi,

I'm visiting SF this week and I'd like to know if anyone can recommend me a good camera store, like B&H or Adorama in NYC. In particular, I'm interested in buying the Rokinon 14mm 2.8 at a good price.

Thank you!

ahsanford · Apr 15, 2014

Bryan Carnathan's most excellent TDP website has posted a very nice head to head of IQ of the Sigma 50 Art against 7 similar focal length primes, including the Canon L, Canon 50 1.4 and the Zeiss Otus:

http://www.the-digital-picture.com/News/News-Post.aspx?News=9491

His IQ comparisons are fun if you haven't used them before. You mouseover the sample shot and the arrow indicator flips to show what image is being shown. You can change the aperture and see what changes, and he'll eventually even run the same test on crop body (note: he only has FF data on the new Sigma 50 right now).

By my eyes on these sample shots, the new Sigma Art thoroughly trounces the Canon 50L (as expected) and the Canon 50 F/1.4 (though it's pretty similar after F/4 or so). The Zeiss, to me, looks sharper wide open, esp. in the corners. Maybe that's what +$3k buys for you.

Of course, this is not the end-all be-all for a lens review. I'm sure Bryan will write quite an opus on this one in the next week or two.

But it's looking good. Have at it and see for yourself!

- A

canonvoir · Apr 15, 2014

I have put several thousand rounds on my 1DX. I have made extensive use of the 12 FPS. Short of recording the sound of the camera firing and examining the sound file, how do you confirm 12 FPS? Has anyone confirmed the 1DX captures 12 FPS through testing?

I have this feeling I am not getting it and was hoping to hear of the methods used to test the claim to see exactly what I am getting. I understand that AI Servo may slow it down, lighting situations, etc. I just want to confirm it on my own camera. Any help would be great.

canon1dxman · Apr 15, 2014

I picked up a 700D body at an auction this week. Just thought it would be fun to try out as a spare body.

Looks immaculate but won't format a card. Any ideas please?

It was cheap enough for me to not lose sleep over but equally, would be nice to get it going.

JumboShrimp · Apr 15, 2014

Bryan has posted some IQ samples on The Digital Picture website.

sanj · Apr 15, 2014

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=941&Camera=453&Sample=0&FLI=0&API=2&LensComp=917&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=2

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=941&Camera=453&Sample=0&FLI=0&API=0&LensComp=115&CameraComp=0&FLIComp=0&APIComp=0

What with this Canon??

steven kessel · Apr 14, 2014

I'm not even sure that this is the right forum but I can't find anywhere else this fits.

My first Canon was an FTb that I purchased back in about 1973. I loved that camera and took a lot of pictures with it, mostly transparencies and Tri-X B & W negatives. A few weeks ago I was rummaging around in a closet and discovered the camera, neatly stored away. It's in flawless condition and I still have the lenses that I purchased for it including my personal favorite, a Bell & Howell/Canon FD 24 mm f2.8 (yes, Canon was briefly a subsidiary of Bell & Howell, back in the 70's).

The camera is in flawless condition. It probably needs a tuneup, a thorough cleaning and the shutter should be retensioned, but aside from that it's absolutely good to go. I really got excited for a while thinking about taking some pictures with it. But then, I was hit with the practical considerations. Do they even make transparency films? And, if so, what do I do with the images?

So, I'm wondering. Does anyone out there still shoot pictures with this old warhorse? What do you shoot? What do you do with the images? I'm intrigued with the idea of going back into transparency shooting just for the sheer hell of it, but I'm daunted by the fact that this is apparently an extinct technology. Your thoughts?

Don Haines · Apr 14, 2014

Copied this from PetaPixel...
Released back in September of 2009, the Canon 7D is long overdue for a much-anticipated refresh. The problem is, up until just recently various sources have published conflicting reports that seem to get us no closer to knowing what this camera will actually look like.

However, yesterday, Northlight Images reported some interesting news that seems to make sense and go along with some of the more plausible rumors about the impending camera.

The Northlight Images report claims that the Canon 7D Mark II will feature a higher end version of the dual pixel sensor Canon used in the 70D. A slightly less powerful version of the tech is also rumored to appear in the 700D (Rebel T5i) and 100D (Rebel SL1) replacements.

However, it seems some manufacturing issues with the dual pixel design of the 70D sensor has delayed production of the 7D Mark II and other successors, forcing Canon to push back release dates until late summer or possibly even early fall.

canon7d_mini

Beyond the new sensor technology in the camera, the below specs are just some of what has been rumored to make an appearance in the 7D successor, although there are a few conflicting reports:
•20MP APS-C Sensor
•ISO 100-12800 (expandable to 25600)
•1/8000 – 30s, Bulb, X=1/250
•150,000 shutter life
•Silent shutter mode, similar to 5DMIII
•19-point phase autofocus
•8fps
•15 Raw / 126 JPEG Buffer
•3.0″ 1040k LCD, touch screen
•Optional WiFi
•Magnesium Alloy body
•Battery capacity 850 shots
•148.2 x 110.7 x 73.5 mm
•Weight 910g

Ultimately, much of this is up in the air still, with nothing considered confirmed until Canon decides to make an announcement itself, but the rumored specs seem to be fairly logical considering what Canon has put out in the past

Drizzt321 · Apr 14, 2014

New55 project, working to creates a 4x5 Polaroid replacement (for 545 holder) has it's kickstarter up (https://www.kickstarter.com/projects/bobcrowley/new55-film). If anyone feels nostalgic, or wants to try and help out the few people still shooting 4x5 please pledge.

Steve · Apr 14, 2014

I have an opportunity to pick up a Sigma 300-800 for a good price. I've been saving for a while to get a long prime for when my 300 2.8 + 2x TC isn't enough. I'd be using it for wildlife and some field sports. I'm interested in hearing thoughts from anyone who has used or currently uses this lens. I'm specifically interested in how well it will take a 1.4 TC and how well the AF performs. I realize that this isn't a 600 f/4 IS or Canon 800 f5.6 IS but I'd really like to know if it will make a decent poor man's super tele, at least until I hit the powerball

RomainF · Apr 14, 2014

http://petapixel.com/2014/04/14/canons-7d-mark-ii-reportedly-delayed-due-dual-pixel-sensor-manufacturing-issues/

Northlight :

In an interesting set of information we're told (thanks), that manufacturing issues (yeild was suggested) with the dual pixel design of the APS-C sensor in the 70D have delayed the launch of the 7D mk2 -and- the 750D and 100D replacements.
A higher performance version of the 70D sensor is used for the 7D2, whilst a cheaper version will appear in the 750 and 100D replacement (150D?)
All are dependent on having sufficient volume of sensor chips available at suitable price/performance points.
The information was passed along to several larger (European) dealers querying Canon DSLR camera availability for later this year, especially the holiday season. All three cameras were loosely slated for Q2 release, but are now Q3. There was no news of a 'big megapixel' body only that the replacement of the 1D X was 'on schedule'.

bdunbar79 · Apr 14, 2014

Excuse my ignorance (not just on this topic, but everything else too).

I noticed recently that having been shooting in Tv mode with a +2/3 EC, I must have changed some setting where it obeys the EC setting in Manual. Not full manual obviously, but when using auto ISO. So for instance if I shoot at 1/500s, +2/3 EC in Tv mode, then switch to M mode and set 1/500s, f/4, auto ISO, the +2/3 EC still remains and it adjusts accordingly. Previously, when I switched from Av or Tv mode back to M mode, the EC bar was never there and I couldn't do it. I wonder what I did? I'll check through my settings more but could it be from the newest firmware version where you CAN do EC in M mode and I just didn't know it? Thanks.

tiger82 · Apr 14, 2014

I would like to add this lens to my bag, can you guys state the merits of the Mark II over the original or vice-versa? Is the Mark II worth the $500 premium?

Eldar · Apr 14, 2014

The Zeiss Otus 55 f1.4 is a phenomenal lens, but it has been criticized for having onion ring bokeh. I have numerous examples of this, some posted over at this thread:

http://www.canonrumors.com/forum/index.php?topic=18169.msg387033#new

Attached are 4 examples. The first one has AC light bulbs. The second one is candle lights. The third is Christmas tree lights and reflections from the decorations on the tree and the fourth is a DC lightbulb.

As you can see, the first and third have the rings, the other two does not. I do not understand why this happens, but it seems to be related to AC light vs. natural or DC light.

I have tried this with numerous lenses (Otus, Sigma 35/1.4A, 85/1.2L II, 24-70/2.8L II) with the same result. The sharper the lens, the more obvious it becomes. So to me it seems that this phenomena has its cause outside of the lens.

Can someone please explain what this is.

Aglet · Apr 14, 2014

Sony's sales of system-cameras slightly exceeds Canon's... in S Korea.

www.sonyalpharumors.com/korea-sony-sells-more-system-cameras-than-canon/

it's taken a while for the trend to get to this point and I'm surprised homegrown Samsung product wasn't up there.

traingineer · Apr 13, 2014

So using my 24-70 F2.8 for years, I always wondered why my images were never tack sharp, so I thought stopping down to F4-5.6 and using faster shutter speeds would make my images sharper, and they did. Although I decided to maybe try and see if my lens was calibrated ( just for fun ) So I took a ruler, set it up at an angle against the window, focused at the number 5, and found out that it wasn't in sharp focus ( at F2.8 ) But 8 was in focus. So I calibrated it to -15 and now my lens focuses at the number 5. I also checked if there was any focus shifting but there wasn't any. ° ͜ʖ °

I feel pretty silly now, thinking my images weren't sharp because of slow shutter speeds/using wide apertures.

Jack56 · Apr 13, 2014

I've got the 100mm L and I'm very pleased with the IQ.
I've seen very nice pictures made with the 135mm L, not only portraits, but also flowers etc.
Do you think the 135mm L will be used if I already got the 100mm L.
Or will a buy be a waste of money.
The 70-200 mm will be another target in the nearby future by the way.

jimenezphoto · Apr 13, 2014

So every so often Canon decides to enforce their "Minimum Advertised Price" policy sending prices for their cameras and lenses back to "MSRP" levels. Seems like price fixing to me but apparently it's legal. I was ready to purchase a Canon 6D With 24-105mm lens but went from being priced at $1999 to $2,499 overnight. I did not buy the 6D and I am glad because I decided not to compromise and buy the 5D Mk II. Having said that I will not pay MSRP. I am in no hurry and will wait for a sale. My question is how long do retailers go along with Canon before before they begin offering discounts on cameras and lenses. I don't see how raising prices across the board helps Canon sales, but I am no business expert. I am sure they know something I don't, but they will not get one dollar from me unless the gear is discounted. Any thoughts out there????

ronaldbyram · Apr 13, 2014

With all the pictures I take, the camera photo count rolls over. Sure would be nice if Canon expanded the file count. would also benefit people wanting to know how my shutter releases have taken place??

Canon Rumors · Apr 13, 2014

HTML:

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<p>A <a href="http://www.thephoblographer.com/2014/04/12/review-sigma-50mm-f1-4-dg-usm-art/" target="_blank">review of the Sigma 50mm f/1.4 DG HSM Art series lens has appeared on ThePhoblographer</a>.</p>
<p>The lens receives pretty good marks in the review, though a few things such as the lack of weather sealing, size and microcontrast. Though the lens is remarkably sharp and the autofocus works well.</p>
<p><strong>Says ThePhoblographer

</strong><em>“<a href="http://www.bhphotovideo.com/c/product/1045458-REG/sigma_311101_50mm_f_1_4_dg_hsm.html/bi/2466/kbid/3296" target="_blank">Sigma’s 50mm f1.4 Art DG HSM</a> is an exceptional lens. Starting with the design, it very much is in line with the company’s 35mm f1.4 Art optic. The outside feels and looks like something that Hasselblad might make. It feels just so great in your hands that you’d never want to let it go. In fact, if you’re a big fan of the 50mm field of view you might never want to give it up.”</em></p>
<p><strong>Preorder the Sigma 50mm f/1.4 DG HSM: <a href="http://www.bhphotovideo.com/c/product/1045458-REG/sigma_311101_50mm_f_1_4_dg_hsm.html/bi/2466/kbid/3296" target="_blank">B&H Photo</a> | <a href="http://www.adorama.com/SG5014REOS.html?KBID=64393" target="_blank">Adorama</a></strong></p>
<p><strong><span style="color: #ff0000;">c</span>r</strong></p>

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