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Canon EF 40mm f/2.8 STM Lens

by Canon
| 110 answered questions

List Price: $199.00
Price: $149.00 & FREE Shipping. Details
You Save: $50.00 (25%)
Only 13 left in stock.
Sold by Photo Savings and Fulfilled by Amazon. Gift-wrap available.

DPReview Gold Award
From the experts at DPReview
Overall score: 84%
See Review Summary and Sample Images
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Digital Photography Review is the most popular dedicated enthusiast digital photography site on the Internet. Our authoritative reviews have earned us the trust of photographers and camera buyers all over the world, for more than 15 years.

Gold and Silver Awards are given to products that deserve special recognition based on how well they perform relative to their competitors at the time of review.

  • 40mm focal length
  • 64mm equivalent focal length on Canon APS-C cameras
  • F2.8 maximum aperture; F22 minimum
  • Stepper-type AF motor with full-time manual focusing
  • 52mm filters
  • 0.30m/11.81" minimum focus
  • Canon EF mount for full frame, APS-H and APS-C DSLRs

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23 new from $149.00 30 used from $115.00 6 refurbished from $135.88
Warranty Information: This product comes with a 1 Year warranty
$149.00 & FREE Shipping. Details Only 13 left in stock. Sold by Photo Savings and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

Canon EF 40mm f/2.8 STM Lens + Tiffen 52mm UV Protection Filter + Canon EF-S 24mm f/2.8 STM Lens
Price for all three: $304.83

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Technical Details

Compare to Similar Items

This item: Canon EF 40mm f/2.8 STM Lens
Customer Rating (632) (130) (4174) (1311)
Price $ 149.00 $ 369.00 $ 115.00 $ 349.00
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Photo Savings Amazon.com Amazon.com Amazon.com
Lens medium-format medium-format Prime lens Prime lens
Maximum Sensor Size Compatibility 35mm FF 35mm FF 35mm FF 35mm FF
Maximum Aperture Range F2.8 F1.8 F1.8 F1.4
Min Aperture 22 22 22 22
Photo Filter Thread Size 52 millimeters 58 millimeters 52 millimeters 58 millimeters
Minimum Operating Distance 0.3 meters 0.85 meters 0.45 meters 0.45 meters
Item Weight 0.29 pounds 1.1 pounds 0.29 pounds 0.64 pounds
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Product Description

A unique and indispensable addition to Canon’s series of EF lenses, the new EF 40mm f/2.8 STM offers an ultra-slim and lightweight design. Incredibly compact in size, the EF 40mm f/2.8 STM delivers high image quality from the center to the periphery thanks to its advanced lens configuration including an aspherical element, a bright 2.8 aperture, and optimized coatings that minimize ghosting and flare while providing exceptional color balance. The EF 40mm f/2.8 STM’s unobtrusive design helps the photographer avoid overwhelming their subjects with a large lens and to remain discreet in sensitive shooting situations with no compromise in performance. Its diminutive design is complemented by features such as a newly developed stepping motor for smooth and quiet continuous AF while capturing video with the Canon EOS Rebel T4i DSLR, a circular aperture (7 blades) for beautiful soft-focus backgrounds, and a short minimum focusing distance of only 0.98 ft./0.30 m.1-Year Warranty

Product Details

User Manual [190kb PDF]
  • Product Dimensions: 0.9 x 2.7 x 2.7 inches ; 4.6 ounces
  • Shipping Weight: 10.4 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B00894YP00
  • Item model number: 6310B002
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (632 customer reviews)
  • Amazon Best Sellers Rank:
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
  • Date first available at Amazon.com: June 7, 2012

Read about our customers' top-rated lenses and cameras on our review pages: Lenses, Digital SLR Cameras, Compact System Cameras

Review summary from DPReview

DPReview Gold AwardJune 2013
The EF 40mm F2.8 STM is a lens whose impressive image quality belies its low price and tiny size. For APS-C users it's a tiny, inexpensive companion to a kit zoom, and on full frame it offers a great option for general shooting.
Andy WestlakeAndy Westlake


The EF 40mm F2.8 STM offers excellent image quality in a tiny, well-made package. For APS-C users it provides a great carry-everywhere complement to a kit zoom, and for full frame shooters it's an excellent general-purpose 'normal' lens. The STM motor means that autofocus is almost completely silent, but it's not super-fast.

Reasons to buy

  • Very good optics in tiny size
  • Silent autofocus
  • Responsive electronic manual focus
  • Decent construction
  • Low price

Things to consider

  • Can be susceptible to flare
  • No lens hood supplied
  • AF speed isn't the fastest

Suggested for

Canon SLR owners who want the image quality of a prime in a tiny, relatively inexpensive package.

Not suggested for

Photographers shooting in really low light or aiming for maximum background blur. They'll do better with a faster lens like the EF 50mm F1.8 II.
Optical Quality
Build quality
Ergonomics & handling
Scoring is relative only to the other products in the same category.
DPReview is the world's most popular dedicated enthusiast digital photography website. Since 1998 its mission has remained unchanged: to deliver the best reviews of cameras and lenses anywhere on the Internet, and help you find the right gear for your needs.

Customer Questions & Answers

Customer Reviews

Colors and sharpness are great.
Alan Q
The lens mounts quite nicely to my 60D and makes the camera very easy to carry around.
D Taylor
The lens' image quality on my 7D is great.
Anthony Pantliano

Most Helpful Customer Reviews

357 of 370 people found the following review helpful By Java Dude on June 21, 2012
"Pancake" lenses have always had an appeal to SLR shooters. Their dimunitive size and weight, as well as overall simplicity, make them ideal as walkaround lenses, and many find the focal length of 40mm (give or take a few mm) much to their liking for general photography. Contax, Pentax, Nikon and other manufacturers have produced their offerings throughout the modern photographic era. Panasonic and Olympus have pancake lenses for their micro 4/3 lenses. For some mysterious reason, Canon has remained silent on the issue since 1965, when it produced the FLP 38/2.8 for a limited time. Until now. Let the celebration begin.

I had the pleasure of owning the Pentax and Contax Zeiss lenses in the days of film. I loved them both, and they were never far from reach. When I bought Canon dSLRs, due to lack of any Canon pancake lens being available, I adapted both the Contax Zeiss and the Pentax pancakes to work on my 5D, 5D2 and 40D. Of course, this arrangement has serious limitations, as both the autofocus and the aperture have to be set manually, making for a slow, awkward shooting experience. At very long last, Canon has brought its own pancake lens to market, in the form of the EF 40/2.8 STM.

It is strikingly small and light, and if you've never seen or experienced a pancake lens before, you're likely to wonder how a lens can be so small and even work on full framed dSLRs. Despite its size, there is pleasing build quality to be found. Built nothing like the EF 50/1.8 II, there is a metal lens mount and a solid lens barrel, short as it is. Canon was barely able to fit the AF/MF switch on the barrel, the barrel is so short. I would compare build quality to the EF 50/1.4. Aesthetically, the 40 has a sex appeal all of its own.
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243 of 260 people found the following review helpful By Cinnamon on June 25, 2012
Verified Purchase
Before going into the details of my review, I'd like to start off by saying...if you have the money on hand, you should immediately buy this lens. I am extremely pleased so far - this is a lightweight, yet solidly built, and extremely affordable performer. While two hundred bucks doesn't seem "affordable" at first, it delivers very solid results that you could expect from lenses that cost several times as much.

To give some background: I do shoot professionally, but got this lens mostly for personal use - I simply prefer the versatility of a zoom lens for professional work, although seeing the impressive results I might incorporate it for future assignments. I currently own two bodies, a 5D Mark II and a 7D. While my main lenses are high-end (the 24-105L, 70-200L 2.8 IS II, and 100mm Macro), since I started off with a Rebel series body I also am familiar with a lot of the cheaper lenses Canon sells, including the 50mm f/1.8. I really liked the 50 f/1.8 because of its convenient size - but by comparison to this lens, it now seems big!

I love this 40mm f/2.8 lens on both of my bodies, but find its focal range to be much more useful on a full-frame than crop-sensor body. Keep in mind that if you have a crop body, the effective focal length of this lens comes out to 64mm! Even at that length, you can still get impressive shots with beautiful bokeh, but in my experience 64mm was more inconvenient to work with than 40mm. I'd still recommend it for APS-C bodies though, because the image quality thus far has been very impressive.

* Very small lens, which allows for much more inconspicuous shooting if you want to blend into the background. This lens is tiny!
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209 of 230 people found the following review helpful By Gil De Sousa, LensTests-com on June 21, 2012
Please don't take the Amazon star rating too serious - every lens has its pros and cons that I wouldn't want to squeeze into a single one-dimensional figure...
A quick note about me: I have been into SLR cameras and lenses for more than 20 years - as a hobby in the beginning and professionally later. Maybe because of my technical background I started testing my own lenses quite a while ago. I have a (no longer so) little test lab of my own where I do 6 different image quality tests (after taking a lens out for a while).

Canon's first-ever "pancake" EF lens is a real treat. It's so small that it looks like a 20 mm extension ring rather than a lens and yet it feels solid as a rock and delivers very respectable image quality. It comes with Canon's stepping motor technology (STM) that allows continuous AF during video recording or live-view mode (when used with a hybrid CMOS AF system) and that gives the lens a fast, silent and accurate autofocus performance. The EF 40mm f/2.8 STM is best used for street and travel photography but can also make great portraits or other things. Its maximum aperture of f/2.8 is great but not good enough for available light photography (which requires even lower f-stops i.e. wider apertures) and I would have loved to have an image stabilizer - but of course that would have been very difficult to build into a 2.7" x 0.9" (68 mm x 23 mm) lens.

In regard to image quality the EF 40mm f/2.8 STM is really a high-end lens. The difference is most apparent if you compare it to a zoom lens but also amongst prime lenses of similar focal length the EF 40mm f/2.8 STM is a high performer. The resolution is great straight from f/2.8 both in the image center and corners.
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