Wont feel lazy to carry this everywhere i go - Fits well on my 7D and now its easy for me to carry my camera ever were for clicking desert pictures.

Amazing quality ; Original; Compact and good for carrying everyday

Absolutely Nothing

I really didn't feel this was the lens for me, quite slow to focus and not as good as its 35mm and 50mm counterparts

I can't believe how long it took me to purchase this lens. This review is for full-frame use. I've been rolling my eyes at it ever since it first came out. How can this lens be any good Recently reading various technical reviews raised my eyebrows and quickly changed my opinion of this lens.

The diminutive Canon EF 40mm f/2.8 STM Pancake Lens immediately inspires the high-pitched talking-to-a-baby voice from its first-time viewers, with short drawn-out words and phrases such as "awwwwe" and "it's sooooo cuuute" being especially common.

Canon has launched two new lenses with the EOS 650DRebel T4 DSLR - the EF 40mm f/2.8 STM and the EF-S 18-135mm f/3.5-5.6 IS STM, priced at £229.99 (about $355) and £479.99 (about $740), respectively.

This lens is a "always on the camera" lens - it's wide enough for taking pics of landscapes, groups of people and you can go rather close with it too - it's my new Allrounder --- on my 5DII I can work undercover because it is so so unspectacular - which works for me!

very compact - good usage for street photography - f 2.8 is fully usable but best results with f5.6; autofocus is quick,exact and nearly quiet

Build is far away from L but much better than the 1.8/50 II; so it's good enough for normal usage

Canon has launched two new lenses with the EOS 650D / Rebel T4 i DSLR - the EF 40mm f/2.8 STM and the EF-S 18-135mm f/3.5-5.6 IS STM, priced at ￡229.99 (about $355) and ￡479.99 (about $740), respectively.

Canon's new standard fixed 40mm lens is so slim and light (just under 3cm protruding from camera body to lens cap edge and weighing 130g) it can slip into a gear bag or pocket with little bother.

Versatile; small and light; Sharp images; Silent autofocus in video mode on 650D and 5D Mark III

Auto/manual focus switch a little fiddly; Quiet autofocus feature only with the above models

this is not the lens for everyone. Some might want faster lens or even the L-brand. For me, this one is a PERFECT lens for street. Optically superb & sleek design. Nobody's gonna be intimidated with this tiny lens. a perfect lens for fullframe sensors. Price is highly acceptable.

sleek; very light; SHARP! nice build quality.

none

The Canon EF 40mm f2.8 STM is the company's first 'pancake' lens, designed to be as small and light as possible. Measuring just 22.8mm thick, it protrudes to roughly the same degree as the grip on many DSLRs, and at 130g you'll hardly notice it when mounted.