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Canon 40mm f/2.8 STM on Canon 5DS R: What Can a Pedestrian Lens do at 50 Megapixels?

Get Canon 5DS R and Canon 40mm f/2.8 STM at B&H Photo. The Canon ES-52 lens hood is optional and I’ve used the 40/2.8 without it, but worthwhile as a bumper at least.

Canon EF 40mm f/2.8 STM

The 40mm f/2.8 STM is a lens I rather like; it makes an excellent body cap, weighing only 125 grams, and is corrected optically in a pleasing way. At about $149 with instant rebate it’s a go-anywhere lens that fits into just about anything. Might as well use it over a body cap.

At 50 megapixels, the Canon 5DS R challenges any lens. So how does it do on a very simple pancake lens with only six elements?

Canon 40mm f/2.8 STM Aperture Series: Industrial Feed Plant in Oakdale (5DS R)

This aperture series from f/2.8 - f/11 shows how many lenses are likely to perform on the Canon 5DS R. It’s an excellent target showing performance across the field. With entire-frame images up to 24 megapixels as well as the usual large crops.

Note that this is not a camera review piece; rather it is one of a number of lens review updates I have planned that I’ll be publishing across brands and focal lengths; as such it goes into the appropriate publication, in this case my review of the Canon EF 40mm f/2.8 STM in DAP (same publication as the review of the Canon 5DS R).

Oakdale Feed Plant
f5.6 @ 1/160 sec, ISO 100; 2015-06-22 15:18:40
Canon EOS 5DS R + Canon EF 40mm f/2.8 STM

[low-res image for bot]
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