Canon EF 40mm f/2.8 STM Pancake Lens

Model #6310B002

USA Version
Canon 6310b002 1
Canon 6310b002 1
Canon 6310b002 3
Canon 6310b002 2
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Dimensions (dxl) Approx. 2.7 x 0.9" (6.86 x 2.29 cm)
Filter thread Front: 52 mm
Weight 4.6 oz (130 g)


Diaphragm blades 7
Minimum focus distance 11.81" (30.00 cm)
Format compatibility 35mm Film / Full-Frame Digital Sensor
Canon (APS-C)
Groups/elements 4/6
Focal length 40 mm
Comparable APS-C Focal Length: 64 mm
Camera mount type Canon EF
Angle of view 57.3°
Aperture Maximum: f/2.8


Image stabilization No
Autofocus Yes
Tripod collar No
Expert Reviews
Dp review.32823956
12 June 2013

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.

  • +

    Very good optics, Tiny size, Silent autofocus, Responsive electronic manual focus, Decent construction, Low price

  • -

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

Camera labs.32824899
1 May 2013

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.

The digital picture.32823291
24 June 2012

Is the Canon EF 40mm f/2.8 STM Lens right for you? Learn all you need to know about the Canon EF 40mm f/2.8 STM Lens in's review!

27 December 2012

Handling and features The Canon EF 40mm f/2.8 STM is a slim, compact pancake type lens, which is compatible with Canon EF and EF-S camera bodies and costs around £230. A fast f/2.8 aperture should make this lens ideal for taking pictures in reasonably low light conditions and focusing is powered by...

The phoblographer.34645560
26 November 2012

Pancake lenses have come into some popularity in recent years, and Canon has answered with their own version, the . Some may question the point of a fixed lens that is only f/2.8 these days, but there are plenty of reasons to pick up a lens such as this.

User Reviews
B h photo.32817553
1 August 2015

As I move more towards making my gear lighter, at this price, why not? This pancake lens is as light as feather, works excellent on my old Canon 50D and when I decide to upgrade to Full Frame (hoping 6D MarkII has a lighter body)I can still use it.

  • +

    Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight

3 December 2015

I am using this lens with an SL1. This is a great camera and lens combination. I have the 18-55 STM which is also very good, but the size, image quality and small aperture of the 40mm makes it an excellent all around carry lens.

  • +

    Image quality, size, aperture, build quality.

  • -


6 September 2014

This lens just arrived yesterday and I think it will be just perfect for my purposes. I wanted a small lens to put on my 60D that had a large aperture ,a close focusing distance and did a decent job of rendering backgrounds out of focus.

  • +

    Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Nice Bokeh

  • -

    Not Easy To Manual Focus

2 September 2014

This is the best Canon pancake lens.Very small, light weight, yet the build quality is excellent, with metal mount and good glass.Image is very sharp, even at F2.8. Focus is very fast, even in live view AF mode.With the STM, you may override focus manually at anytime.

  • +

    Fast auto-focus, Superior build quality, Super-sharp images, very small

  • -

    noisy manual focus

Office depot.34444728
22 November 2015

So light weight I didn't think it was on my camera. I shoot sport photography and shot some filler shots of coaches and start players. Tack Sharp, Sot some of Cheerleader Squad Tack Sharp

22 November 2015

So light weight I didn't think it was on my camera. I shoot sport photography and shot some filler shots of coaches and start players. Tack Sharp, Sot some of Cheerleader Squad Tack Sharp

9 November 2015

This is the first extra lens I've bought for my Canon t6i and it's been a lot of fun! Focussed all the way in you can get about a foot from your subject. Macro shots are nice and clear, with far less aberration than the kit lens at a similar distance.

Review buydig com.33956271
30 October 2014

Between 40mm and 50mm, I like the 50mm better. However if you want lens particularly for portrait, I strongly recommend the 85mm.

  • +

    Sharp images, light weigh, decent price.

  • -

    Slow focus, cheap feels, not good depth of field.

4 August 2013

For the money, this lens is great. I use it on a 5D Mk 2 and it works really well for product photography.

  • +

    Small and lightweight Sharp

  • -

    None that I can think of at this price.

Photography review.32822891
24 July 2014

I bought this lens as a walk-around lens. It is not as fast as my 50 1.2 but is much much lighter and most important, do not draw attention. It makes my 6D looks very discrete. It is also cheap for what it delivers.

  • +

    Small, light, small and light again..., Superb sharpness even wide open., Don´t draw attention at all....

  • -

    STM focus wont manually work in auto mode. In manual mode still has an delay., You cant operate focus if camera is turned off or if the lens is detached, making impossible to retract the front element., It is quieter than old focus systems but is still audible.

Product Highlights
  • Continuous Autofocus for Video With T4i
  • Bright f/2.8 Aperture
  • Lightweight 4.6 oz Lens
  • Unobtrusive--Less Than 1" Long
  • Aspherical Element--High Image Quality
  • Optimized Coatings Reduce Ghost & Flare
  • Exceptional Color Balance
  • 7-Blade Diaphragm for Beautiful Bokeh
  • Close Focusing to 11.81"
  • 64mm Equivalent If Used on APS-C Camera
Average Expert Score
Average User Score
In The Box
  • Canon EF 40mm f/2.8 STM Lens
  • E-52 II Lens Cap for 52mm EF-M Lens
  • Lens Dust Cap E (Rear)
  • Limited 1-Year Warranty
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