Lurker said:

I need help! Spring is in the air and I am coming down with GAS, I am spending to much time looking at lens reviews....how can I rid myself of this affliction?..?

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Depending on were you are in life:
1) Get a Significant Other
2) Get engaged
3) Get married
4) Have kid(s)
5) Buy a house (or a bigger one with a bigger yard)
6) Buy a new car
7) Send a kid to college
8) Have a kid get married
9) See a financial adviser about retirement planning

All have been shown to work well as vaccinations against GAS. They work by removing the basic resources needed for GAS to get started. The effects of some last longer than others, and some require boosters every few years.

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Adding to the list:
10) Get an expensive divorce
11) Get unemployed
12) Get an illness that lasts

All of those will take care of the problem. After a few years you will start to contemplate the possible nutritional value in your neckstrap and the lens caps...

CanonFanBoy said:

5. The post had to do with whether or not a stills camera allowed to evolve on it's own, without having to cram so much more technology into the small case, might evolve more quickly and be a better camera in the long run. It is a question, not a manifesto.

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I imagine that the development teams are divided into photography and videography groups. Would putting twice as many people into photography software improve photography? Maaaaybe, but more likely they'd just finish the work package sooner.

If there are video-specific hardware compromises made, such as an strong low pass filter (mentioned above), then it's possible a stills-only camera would be a little better than a hybrid. I suspect those situations are rare, and that no, photography wouldn't evolve significantly faster if it weren't for video.

AvTvM said:

A camera without unnecessary holes in its shell for mic, speakers, video-only connectors would be better and cheaper to weatherseal. Those holes are additional video-induced compromises and weaknesses compared to what a pure stills machine would be.

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Kind of picking a nit, there. Neither a rather insignificant body weakness nor the cost of a gasket have any impact on still photography performance, any more than the presence of a mirror box impacts video performance. If they created light leaks, that would be another story entirely.

http://www.canonwatch.com/canon-patent-for-ef-ef-m-adapter-with-improved-auto-focus-speed/

"Egami (translated) spotted what could be Canon’s best move to push their mirrorless cameras. A new EF-EF-M adapter that should deliver better AF speed when using EF and EF-S lenses. While the AF performance of Canon’s new EOS M3 is excellent with the native EF-M lenses, AF performance is limited when using EF lenses via the currently available adapter. If Canon puts such an adapter on the market it would a huge selling point for the EOS M3. Access to Canon’s extended lens lune-up, and same AF performance as with native lenses!"

Good news for all M3 interested photographers....

I use the 500II on a 5D3 and can't remember having said issues.

I did however create a quite extensive article about the 5D3 AF system that also covers the topic of how to change focus distances quickly while using super telephoto lenses.

You can find the article here: http://www.focrates.com/articles/configuring_your_5d_mark_3_af_for_fast_action/configuring_your_5d_mark_3_af_for_fast_action.html

Greetings!

www.youtube.com/watch?v=Ww6QGpryrLM

Canon have confirmed that the 5DS and 5DS R will be at The Photography Show in Birmingham they are stand number B11.
The show will also have some Photography greats including Don McCullin, Martin Parr, Mary Ellen Mark, Tim Flach, Simon Norfolk, Tom Stoddart, Lynsey Addario, Susan Meiselas and Michael Kenna. 268 stands, Bowens Studio Lounge, Streescape, Live Stage & Super Stage plus an Adobe Theatre.

Your 7d and 6d should be able to be tuned happy. The 1DIIn is not going to get better, adjustments didn't show up until the 1DIII (I think... i'm at 1 cup of coffee so YMMV).

s7pomerantz said:

I have trield 2 charged batteries that worked in another camera. I removed the memory card.
I am baffled...anyone know abouut this?

Susan

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Hi Susan. I'll take a stab at this because I had a similar problem once with my T5i. I removed my battery grip and inserted a charged battery into the camera. The camera would not power up. Turns out there is a limit switch (very tiny) that gets depressed when the battery door is closed. I hadn't reinstalled the battery door after removing the grip so the camera thought the battery door was open and would not power up. There's a similar switch on the card door too. It could be that one of those two switches has failed, or one of those doors is not closed. If both doors are in place, then one of the switches may have failed and the camera needs a repair. OR, the little tab on the battery door that depresses the limit switch has broken off. In that case you can stuff a tiny piece of paper into the hole to depress the switch and use the camera. You could order a new door in the mean time.

I concur, of the two strive for the 90mm, particularly as you're shooting FF. I have the 90mm which I predominantly use for products...it's amazingly sharp. Yet for pictures? Wouldn't you miss AF? I've utilized mine on a couple of representation shoots yet about dependably get my most ideal chances with the 70-200 f/2.8isII. I simply keep the 90mm for 100% static subjects.




_____________________________________________________________________________________
www.braindumps.com/MCP.htm

i've observed that focus shift is a thing with this lens, but it's not a big enough deal to really worry about. in my informal tests, when shooting a meter away, focus appears to shift away from the camera by about 3-4mm at most, which is usually not enough to put the subject out of focus.

on the other hand, with the dof being as shallow as it is, setting the AFMA is very important. mine needed an adjustment of -10, which made a difference of a few cm shooting 3m away, which is enough to cause trouble when shooting wide open. simple enough to do though. i bought focal to double check my manual settings and it's results were very close.

i really enjoy this lens a lot. being able to obliterate ugly backgrounds really makes the subject pop. i even enjoy it stopped down, which isn't what it's really meant for, but the colour rendition is good, and while it's not the sharpest, it's not as soft as people say either.

Slyham said:

Depending on the cost and IQ, I will sell my 18-135 STM and pick this one up for my all-around/travel lens.

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+1 for my wife. I got here a pair of 70D for Safari. On 1 I place at 18-135 and on the other 100-400. Nice if her general purpose zoom had a long range.

Marsu42 said:

noncho said:

I know I can easily remove it during post-processing, but I don't wanna see it on the camera screen.

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Um, on newer digic5 and later camera bodies there is the in-camera CA correction to take care of this, isn't it?

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On Page 150 of the 5D3 manual it says:

If you play back a RAW image shot with the chromatic aberration corrected, the image will be displayed on the camera without the chromatic aberration correction applied.

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Hi PropeNonComposMentis.
I'd guess a good many of us got the analogy, I did, but have little or no idea of the answer to the question or the science behind it.
Sorry, no thousand yard stare, a brief quizzical look, then on to the next post! ;D

Cheers, Graham.

PropeNonComposMentis said:

ultrasound said:

Wonderful--in the vein of Mad Magazine's famous line "All the news that fits, we print" the Canon interview was a perfect example. Thanks for real answers.

Seriously--no one has written a word I've seen on light loss associated with the R " moire unfilter". With wide angle lenses, I'd guess any extra optical layers would increase vignetting, and maybe a little light loss would up noise. Any comments?

Also, what's the overall quantum efficiency of this sensor--that is how much of the light is actually converted to e-h pairs? i.e. how big are the cracks in the sidewalk compared to the paving stones? With smaller pixels, maybe the efficiency suffers more than proportionally.

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Hi ultrasound, I assume you are not the Transformer Decepticon that goes by many names in the original animated series
Its rather sad around here. If you make mention of Actual Real Life Science, or Reality in general, it would seem that everyone looses interest. :
I can only imagine people sitting at their screens, deadpan expression, 1000yard stare, like some scene from Dr Who where the Bad Guy hijacks everyone's brains via the Net'....

"cracks in the sidewalk " Obviously still way too technical.
I dont dare use the full 'proper' term, in case someone has a stroke.

Good luck dude. Party on...

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Re: Patent: Canon EF 300mm f/4L IS & Others

keithcooper said:

Sorry, I wasn't quite clear, its a 'new' technology, as in the way that DO is a 'new' feature to include in your optical designs. This one seems to involve resin layers (??)

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You are right, this has nothing to do with DO, in fact the blog even writes about the drawback of DO and specifically mentions Nikon's recently released 300 PF. The key claim of this patent seems to be lenses with prescribed distribution of diffractive index over the radius, made from special resins.

The blog also mentions that instead of going the Zeiss Otus / Sigma Art route, Canon may elect to stick with conventional design for fast 50mm lens, with performance improvements coming from this technology.

keithcooper said:

Having lenses that vary in refractive index in different places is not new, you are looking through them to read this...

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And even Canon seems to have patented aspects of this technology over three years ago ...

Being owner of Canon 1DX and Sony a7s + Sony a7r I found review below interesting for me , maybe it would be interesting for others

http://www.sonyalpharumors.com/a7s-voigtlander-nokton-35mm-1-2-field-test-by-daniel-cook
"The legendary high-ISO handling of the A7S is just amazing, whilst I use my Canon 5D Mark III for professional work if I need to shoot in low-light the A7S will do a much better job."

Marsu42 said:

-1 said:

What's a Kenko?

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I've researched it just for you, here's your answer: http://bit.ly/1B2q9SE

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Ahh... A TelePlus! Had one of those...

StudentOfLight said:

The combined LCA and LOCA (exacerbated by field curvature) on the 35L can be at least 13micrometers towards the outer third of the image which equates to about 3x the pixel pitch of the 50.6MP bodies.

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Interesting calculation - we'll see with real life samples of a 5ds and a 35L, if anyone dares to combine them. We might see a 50/1.8 though just for kicks :->

StudentOfLight said:

Regarding correction in post processing... (from Wikipedia: http://en.wikipedia.org/wiki/Chromatic_aberration )

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Do note that I didn't say that CA is a good thing(tm), but imho it can be worked around (not: removed or the detail recovered) that I doubt Canon will update a lens for this reason alone. We probably differ in our belief how important a good lineup of L lenses is for Canon and how much they're willing to invest for this, my argument is the lack of a 35L2 vs. the updated 24L2 all those years.

SoullessPolack said:

You clowns just don't get it, do you? Read what privatebydesign wrote; he's one of the most intelligent and well educated members on this board. What he said is true.

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Pdb, do you have a second account :-> ?

Come to papa.

- A larger auto-focus area (see 7D Mark II).
- More information displayed in the viewfinder (see 7D Mark II).
- GPS. I would really like to have my travel pictures automatically geo-tagged without using some bulky add-on or remembering to use a GPS data collection application on my phone to eventually mash the data into my photos.
- Touchscreen, assuming it can be turned on and off at will. Being able to zoom in and out with a pinch and selecting focal points with a tap can be extremely convenient at times (see 70D).
- Dual memory cards without having one slot create limitations for the other like the 5D Mark III.
- Focal point exposure measurement options, not just in the center.
- Not as important, but Wi-Fi in conjunction with the Canon phone app can come in handy when you are trying to take group/family pictures that include yourself.

Bervy said:

HI. I have a particular work flow that requires me to adjust the power output on my 600EX-RT while being remote from the camera. I use a Camranger to trigger the camera, then evaluate the exposure on my iPhone and adjust the flash output as needed.

I have been using PW FlexTT5s for this but have some issues with them.

I have tried a ST-E3-RT, but using such a trigger will not let me change my flash power at the flash. I want to be able to have the flash in Manual and adjust as needed without having to go back to the camera, and the ST-E3-RT seem to lock me out of my flash. I can change the FEC at the flash when I am in ETTL, but I really need manual control.

So, I am considering Odins. Can someone who owns Odins and canon flashes to a test for me?

While using the trigger, can you change the mode on the flash from ETTL to Manual and adjust the output?

Thanks.

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You're not getting much response here. It might be a better question over at the FlashHavoc forums. Find an active Odin thread and latch onto that.

-pw

After much research, I bought the Commlite adapter, but other users' input regarding others would be appreciated.

-----------------
The current EF to FE adapter situation is very mirky. I would like an adapter with better AF speed than ones on the market right now, even Metabones III, now IV. Also, even the better-reviewed ones like Metabones and RJ adapters are supposed to not work well with third-party lenses especially Sigma, which is disappointing since the advent of Sigma ART 35 and upcoming ART 50mm lens. My research so far turned up the following.

The ones without AF are pretty cheap, but there are quite a few that preserve AF, IS. From researching these in an effort to find a reliable one, the user experience seems to be that AF is similarly slow via all of them, and each has different electronics/software leading to one working better with some lenses while another adapter may work better with other lenses (Canon or third party).

Metabones Mk III adapter seemed to be the most popular with most user reviews but also the most expensive at $400.
Metabones Mk III's AF speed is slow and typical:
<a href="https://www.youtube.com/watch?v=9UTdyG3YLJA" rel="nofollow">www.youtube.com/watch?v=9UTdyG3YLJA</a>

*Edit*
It's since been updated with Metabones Mk IV, but disappointingly, according to Metabones, there has been no AF speed improvement from Mk III to IV, just bigger opening to accomidate tilt-shift lenses and anti-reflective coating inside:
<a href="http://www.metabones.com/products/details/MB-EF-E-BM4" rel="nofollow">www.metabones.com/products/details/MB-EF-E-BM4</a>

This Youtube video comparing Viltrox, Metabones IV, and Commlite also seems to indicate Commlite may work even better than Metabones IV:
<a href="https://www.youtube.com/watch?v=BrrmPDEkuVI" rel="nofollow">www.youtube.com/watch?v=BrrmPDEkuVI</a>

Mk III did not work with all lenses, only Canon-branded lenses introduced in or after 2006 are officially supported. Autofocus may be disabled for older Canon lenses and most third-party lenses, including most Sigma, Tamron and Tokina lenses and all Contax N lenses. A lot of users are reporting internal reflections causing funny colors and CA at edges, and there is a DIY fix using adhesive-backed velour to cover up the adapter internals.

However, Metabones IV is reported to be too tight on lens side fit along with other issues. The video also shows why non-smart adapters like Vello can't be used:

<a href="https://www.youtube.com/watch?v=GrJd2CmYNuM" rel="nofollow">www.youtube.com/watch?v=GrJd2CmYNuM</a>

My next choice would be RJ Electronics one which is cheaper with good user reviews available. Some claim it gives sharper results than Metabones III (how?) and works with older Canon lenses unlike Metabones. RJ admits it does not work well with Sigma lenses. I read one user who said that Canon 100L Macro did NOT AF when focus limiter was set to 0.3-0.5m (Macro range) but AF was fine at other settings.

<a href="http://www.rjcamera.com/ocart/index.php?route=product/product&amp;path=20_63&amp;product_id=81" rel="nofollow">www.rjcamera.com/ocart/index.php?route=product/product&amp;am...</a>

This Viltrox zinc-alloy one seems okay as well. I have a Viltrox Canon EF to M adapter which works OK though a bit loose on camera end. One can find a couple of user reviews on line, so at least you know it &quot;works.&quot;
<a href="http://www.amazon.com/VILTROX-EF-NEX-II-Cameras-Adapter/dp/B00MN7M4WA/ref=sr_1_1?s=electronics&amp;ie=UTF8&amp;qid=1424544685&amp;sr=1-1&amp;keywords=viltrox+ef-nex+ii" rel="nofollow">www.amazon.com/VILTROX-EF-NEX-II-Cameras-Adapter/dp/B00MN...</a>

I found a video on Youtube that shows AF speed with Viltrox adapter:
<a href="https://www.youtube.com/watch?v=TZXz2tD2vwA" rel="nofollow">www.youtube.com/watch?v=TZXz2tD2vwA</a>

<a href="http://www.ebay.com/...=item2a37fba755" rel="nofollow">www.ebay.com/...=item2a37fba755</a>

Fotodiox Pro adapter, at similar price to Commlite. The lens side is metal, but camera side seems plastic.
<a href="http://www.amazon.com/Fotodiox-Pro-Mount-Auto-Adapter/dp/B00D9BKLX8/ref=sr_1_4?ie=UTF8&amp;qid=1424544990&amp;sr=8-4&amp;keywords=EOS+E+adapter" rel="nofollow">www.amazon.com/Fotodiox-Pro-Mount-Auto-Adapter/dp/B00D9BK...</a>

AF speed seems similar to others.
<a href="https://www.youtube.com/watch?v=aEwzoV4rdZU" rel="nofollow">www.youtube.com/watch?v=aEwzoV4rdZU</a>

TechArt version II adapter.

It's thought TechArt and RJ adapters may be from same oem, sharing the black finish on the camera side and also sharing the inability to recognize focus-limiter on Canon lenses. It's selling a little cheaper than RJ.

<a href="http://www.techart-logic.com/EOS-iNEX2.html" rel="nofollow">www.techart-logic.com/EOS-iNEX2.html</a>


Deo-Tech Falcon adapter
<a href="http://www.bhphotovideo.com/c/product/1071789-REG/deo_tech_deocef2semk2_canon_ef_lens_to.html" rel="nofollow">www.bhphotovideo.com/c/product/1071789-REG/deo_tech_deoce...</a>

This one also looks to be the same adapter as RJ and TechArt
Upon further research, some users including Fred Miranda are reporting that RJ/TechArt/Deo-Tech adapters are softer with more CA in the edges compared to Metabones III.

Deo-Tech now makes Mk III, which now shows the label &quot;Tech-Art&quot;!
<a href="http://www.deo-tech.com/products/deo-tech-canon-eos-ef-sony-alpha-e-af-adapter-mark-3-falcon/" rel="nofollow">www.deo-tech.com/products/deo-tech-canon-eos-ef-sony-alph...</a>

*Edit*

Well, I ended up returning the Sony A7r but recently bought it again with the Zeiss FE55 f/1.8 lens. The adapter I did end up getting is the Commlite FE-NEX adapter. Based on reviews I read, none of the adapters, even the pricy Metabones, auto-focuses fast, so I bought one that is reported to have AF at least as good as others with least reports of issues.
This Youtube video comparing Viltrox, Metabones IV, and Commlite also seems to indicate Commlite works even better than Metabones IV:
<a href="https://www.youtube.com/watch?v=BrrmPDEkuVI" rel="nofollow">www.youtube.com/watch?v=BrrmPDEkuVI</a>

Commlite FE-NEX adapter:
<a href="http://www.amazon.com/Auto-Focus-Mount-Adapter-EF-NEX-Canon/dp/B00DW0EV2I" rel="nofollow">www.amazon.com/Auto-Focus-Mount-Adapter-EF-NEX-Canon/dp/B...</a>

Good news first. Its build quality is quite good with nice metal contact areas and sturdy-feeling switch and smooth mount/unmount. AF speed was surprisingly fast with Canon lenses I most likely would want speedy AF from, e.g. Canon EF 24-70 f/2.8 II, Canon 35L.

BTW, It's a joy to use the Canon T-SE 24mm II with its fabulous MF ring with this adapter and Sony's focus peaking. Fantastic!

Now bad news. Longer focal length lenses don't AF as well with lots of hunting issues. Canon 100L macro was especially slow with no useful AF to speak of. I expected better, but Canon 70-200 f/2.8 II did not AF well at all with the adapter setup. Pity that... To add to the insult, Canon 85L II would not even mount physically on the Commlite adapter. Something catches mechanically and the 85L cannot be screwed on all the way.

All in all, I got pretty much what I expected going in, with nice build quality for the low price I paid.

Canon wants a physical address, no po boxes or ups stores. Those are often used by scammers, and they learned that quickly.

There should be no issue as long as its a physical address such as 12345 W St as opposed to PMB or PO type addresses.

Adorama was giving free spills and drops insurance (1 year) with new high end lenses, depending on where you bought the lens, be sure to check.

My current plans are to use the Sigma 18-35, Sigma 50/85/135 Art (depending on a variety of factors once we can compare them all), and the 100-400II (because I like shooting wildlife).
Honestly I could do without the portrait lens, but sometimes it's nice to have the option of using bokeh to hide the background.

Aside from the magnification, what's the difference between this and the Eyepiece Extender EP-EX15?

EP-EX15 0.7x magnification
MG-Eb/MG-Ef 1.2x magnification

Can I use both to get extension and less reduction than the extender alone? That would end up being about 0.84x magnification (0.7*1.2).

The magnifiers have two elements, so there must be some extension. It can't have no thickness. So would one of the magnifiers alone be a good alternative to the (reducing) EP-EX15 extender?

I'm looking for a way to not have to smash my nose into the back of the camera as much. (The Canon Angle Finder C is another option, but it's more cumbersome)