Canon EF 40mm f/2.8 STM User Reviews

Announced Jun 8, 2012 •
Prime lens | Canon EF | 6310B002
47872Mike
 

The tiny size and weight make this almost self-recommending for full-frame users who want to keep things as small or light as possible. Optics are superb for all practical purposes, with just a very small corner area of unsharpness and purple fringing against the light taking it below perfection. There are very few photographic situations where this will be remotely perceptible. Right from 2.8 the image has great sharpness and contrast; it's a far more consistent performer than the 50/1.8. AF ...

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This sucker is tiny, sharp, contrasty, cheap, light and 100% awesome! It goes head to head IQ-wise with zoom lenses costing thousands.  And it cost less than a high quality lens filter. Throw it on a full frame as the only lens you will need as a travel lens.  Throw it on a cropped and you got a lens close to 50 mm FF equivalent.  Add its EF-S 24 mm cousin and you have the perfect 2 lens cropped travel kit. Even if you travel with everything you have, throw this sucker in your kit. I think it ...

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47872Mike

This review relates only to my use of the lens on a 6D full-frame camera. Sharpness and contrast are excellent right from f2.8, with the exception of very extreme corners. It's well-made and doesn't have that annoying play found in the focusing mechanism of many cheaper Canons, so it is capable of focusing consistently where the camera wants it to...unlike, for example, the 50/1.8 II I used. It doesn't acquire focus particularly quickly, but it isn't slow enough for that to be a massive issue. ...

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groupoid
 

The difference is negligible, both by measurements and by feel. 40mm has slightly worse coma at the very edge, but I find it hard to imagine a situation where this difference would play a role (for astro, neither is best choice). As an important consequence, if you already have 24-70ii, you can own both (extra $100), and then make decision on which one to take based purely on size, without thinking a cheaper lens would be a compromise on quality. A full frame camera with this lens is very ...

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nidrig
 

This lens was tested on a Canon 5DS. It was compared (unfairly) with the Canon 24-70 2.8 L II and Sigma Art 50mm 1.4. At first, the combo lens/camera felt unbalanced, as if there was no lens attached. The images are incredibly sharp, even at full opening. The bokeh is smooth and pleasant. Unless cropped at 100%, I couldn't tell the difference from the other lenses mentioned. It focuses fast and accurately, its small size allowing to be close to the subjects. But it suffers from vignetting ...

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I've only had my Canon FF gear for a few weeks now, but I can already tell this lens is going to be the one that I'm likely to use most. The focal length works for me - it's ideal for street and general photography for those of us who are city-based - and I'm very impressed with the image quality and decent build quality given the lens is so affordable. So far I've bonded with this lens a lot more than the equivalent (and much more expensive) 27mm pancake on my Fuji and I'm impressed that it ...

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JhvaElohimMeth
 

It's a special lens. A perfect combo for the Canon 6D. Fast focusing, silent, 2.8 is enough. Quality is top notch in every aspect. Maybe just the colors are a bit too cold, but it's a matter of taste here. The price is so cheap that you can buy it instead of the lens cap and keep with you as a backup lens or to create a street photography setup for you Canon reflex

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I have this lens attached to my trusty 5D, is so light that you feel like you are carrying the body without any glass. I have made many casual comparisons with this pancake vs my $750 Zeiss ZM 35mm using the Sony A7 and processing the files with the same Lightroom parameters and  I couldn't find absolutely any difference in contrast, sharpness or overall look.  The 40mm @ f2.8 gives you a tiny larger depth of field vs the 35mm f2 (3 inches more depth of field setting your subject at 10 feet) ...

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Glick1
 

It is amazing how small this lens actually is. It is really sharp at 4.0. I have both this and the 50mm STM. The 50mm is allot quieter than this lens. I actually thought there was a problem until I spoke with canon service. They admitted there is not much benefit in sound with the STM in this size lens. Still it performs extremely well. I would say I use this more in bright conditions and the 50mm more inside. They both have their purpose but dont expect it to be as silent as other STM lenses.

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