Canon 40mm f/2.8 STM Lens

With all the fun I’ve been having with the Fuji X100, I was concerned that my Canon 5D Mark III might be feeling neglected. Well, we couldn’t have that, so I bought it a present. I’d been thinking of getting this lens for a while, but its initial price of around £230 seemed a bit much for what it was and how much I’d be likely to use it. But the combination of a drop in the typical sale price and a 10% off code from those nice Wex Photographic people (previously known as Warehouse Express, and the place I’ve bought most of my camera kit from over the last few years), brought it down to just below £150, which seemed a lot more reasonable.

The first thing you notice about it is that, as Canon lenses go, it’s tiny. It’s a lot smaller than the 50mm f/1.8, which is generally known for being not very big. The next thing you’ll notice is that unlike the 50mm, it’s got a proper metal mount. You’ll also notice that the focus ring is very small and that there’s no distance scale, but that’s only to be expected in such a small lens.

This is how it looks on the quite large 5D Mark III:

Quite small

Quite small

Camera: FinePix X100
Aperture: ƒ/5.6
Shutter speed: 1/50s
Focal length: 23mm
ISO: 3200
Taken: 18 December, 2012

And that smallness has a particular value to me. You might recall me talking about the UNDFIND bags I got at the beginning of the year, which are generally nice, but required me to carry the 5D Mark III without a lens attached. Well, not any more! The 40mm is so small, that the camera fits nicely in one of the compartments, leaving the other two free for another lens and some accessories. Result.

What with one thing and another, the first chance I had to take the lens out for a proper test was last Saturday’s coast walk. The light was fading, and I was giving it some tricky things to work on, mostly rushing water, but overall I think it did quite nicely. There were a few points where the autofocus struggled a bit, but in general I got some nice images, some of which I’ve already posted, but here’s another sample:

Secret Garden

Secret Garden

Camera: Canon EOS 5D Mark III
Aperture: ƒ/9
Shutter speed: 1/40s
Focal length: 40mm
ISO: 4000
Taken: 15 December, 2012

Nice lens. More testing and more samples when my tuit supply permits.

3 thoughts on “Canon 40mm f/2.8 STM Lens

    1. Les Post author

      Yeah, a super-fast version of this would be nice. I suspect making it that fast and that small would be a challenge. And it would also end up costing a lot more. My 50mm f/1.4 is nice, but a lot bigger than this.

      1. Phredd

        The Pentax pancake 40mm is also a 2.8 lens. And, yeah, the 50 MM 1.4 is about three times as thick. Still, I think I’d rather have a bit of extra bulk and the higher speed.

Comments are closed.