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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 06 Jun 2012 (Wednesday) 16:17
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Canon EF 40mm f/2.8 Pancake

 
cskorik
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Jun 24, 2012 13:48 |  #706

Still loving this lens. I really hope that Canon has a wide, full frame pancake in the pipeline. Seriously considering the 24mm f/2.8 IS that's coming out, but I probably will wait and see if they come out with a pancake instead ($800 is a bit much for a wide prime)!


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DreDaze
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Jun 24, 2012 13:50 |  #707

cskorik wrote in post #14625223 (external link)
Seriously considering the 24mm f/2.8 IS that's coming out, but I probably will wait and see if they come out with a pancake instead ($800 is a bit much for a wide prime)!

so you're the one....


:)


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Jay-Bird
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Jun 24, 2012 19:16 |  #708

These were shot on a Rebel k2 35MM at 2.8 and 100/400(indoor) ISO. Kodak Gold 400:

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harv3589
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Jun 24, 2012 19:33 |  #709

I have my name on the waiting list up here for one...cant wait to try it out! I am impressed with the pics that have been posted up!




  
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TTHX
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Jun 24, 2012 19:57 |  #710

Anybody in Canada (specifically Ontario) have this lens yet?


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pkilla
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Jun 24, 2012 20:27 |  #711

How good is the sharpness compared to the sigma 17-50 and should I get I really love the compact size of the lens


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cptrios
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Jun 25, 2012 00:04 |  #712

OK, so this shot from the ephotozine review (external link) (f/8 on a 5D2, it seems) looks to me to show an astonishing amount of field curvature. Can anyone who's got a copy shed some light on whether or not that's true?

If not, then I can see this thing plus a used 5Dc being a killer, moderately compact bang-for-your-buck combo.


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speedync
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Jun 25, 2012 01:55 as a reply to  @ cptrios's post |  #713

If they bring out a 16 or 17mm version of this lens, I'd buy it in a heartbeat. It rocks.




  
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msowsun
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Jun 25, 2012 07:22 |  #714

cptrios wrote in post #14627415 (external link)
OK, so this shot from the ephotozine review (external link) (f/8 on a 5D2, it seems) looks to me to show an astonishing amount of field curvature. Can anyone who's got a copy shed some light on whether or not that's true?

That looks like normal perspective distortion to me.

EDIT: Looking at the full size image, the upper left and right corners do look a little soft, but the lower left and right corners look sharp. Is that what you mean by "field curvature"?


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MidnightRook
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Jun 25, 2012 07:43 |  #715

Lenses need to have character; a bad photo will still suck no matter how perfect a lens is.


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cptrios
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Jun 25, 2012 10:11 |  #716

msowsun wrote in post #14628164 (external link)
EDIT: Looking at the full size image, the upper left and right corners do look a little soft, but the lower left and right corners look sharp. Is that what you mean by "field curvature"?

Yeah, a curved focus field, not distortion. In that case, distant objects on the borders are seriously out of focus, while close objects aren't. It could just be a matter of the focus point itself rather than a serious flaw with the lens.


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Vixen89
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Jun 25, 2012 13:25 |  #717

The Best Buy stock is all gone. :(


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cptrios
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Jun 25, 2012 17:39 |  #718

From lenstests.com:

Curvature of the focal plane

While the EF 40mm f/2.8 STM is pretty well centered in the sense that focusing on the left image border will also render the right image border perfectly in-focus it unfortunately expresses some serious curvature of the focal plane. That means that a focus on either of the image borders will render the center of the image out-of-focus (and vice versa). - Well, of course not completely out-of-focus but let's say it will not be in perfect focus. The reason for that is that the lens's focal plane is curved rather than straight as it should be. Whether or not this will be visible in actual pictures depends a lot on the subject you are shooting and of course on the in-focus range. Since stopping-down increases the in-focus range it will help you counteract the curvature effects and - even better - if you use the lens with an APS-C camera (where the smaller sensor captures only an inner crop of the image) you will not notice any curvature of the focal plane.

Again, curvature is only an issue in certain circumstances and even some really high-end lenses (such as the EF 24-70mm f/2.8L USM ()) have been known to show significant curvature.

I has a sad :(. Seems like an excellent street lens though.


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friz
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Jun 25, 2012 22:14 |  #719

Just got notification from Adorama. My pancake is on it's way. It will be here Friday!




  
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macroimage
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Jun 25, 2012 22:23 |  #720

friz wrote in post #14631869 (external link)
Just got notification from Adorama. My pancake is on it's way. It will be here Friday!

Me too, except that mine will be here tomorrow! :) I'm crossing my fingers that UPS doesn't screw up and that nothing goes wrong.


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Canon EF 40mm f/2.8 Pancake
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