This is video: Canon 40mm EF f2.8 STM Lens review. Link to the Canon 40mm f2.8 Pancake lens on Amazon: [ Ссылка ]

A less expensive alternative:

Canon 50mm EF F1.8 on Amazon: [ Ссылка ]

Today we're looking at the Canon 40mm F2.8 prime lens. This is one of Canon's least expensive prime lenses and is one of Canon's newer Stepper Motor Powered lenses. So lets first take a quick look around the lens.

For starters, this is an extremely compact prime lens. And you can see just how compact the lens is when compared to the 18-55mm standard canon kit lens or even its less expensive cousin, the 50mm f1.8. This compactness also has the effect of reducing the weight and size of your camera setup and this is very important if portability is something you value.

The lens body is mostly made from metal with bits of plastic for things such as the focus ring and front cover. Its built very sturdily, so the lens will hold up to some heavy professional use. The outer body has a switch that lets you switch between auto and manual focus and a red alignment dot that allows you to correctly align and mount the lens. Now, this is an EF mount lens, so it will work with any Canon EOS camera, whether APS-C sized or full frame. And this is really helpful if you intend to upgrade to a different canon camera body in the future.

The focus ring is very smooth and allows fine adjustment when focusing manually. However, that can be a bit of a disadvantage too. The sharpest focus sometimes becomes very hard to determine and this is especially so when focusing on subjects in the live view mode. But this isn't just an issue with this lens but is more of an issue with all Canon STM or stepper motor lenses. One thing to note though is that the focus ring spins freely in both auto and manual focus modes, unlike regular canon lenses. The filter thread on the face of the lens is a 52mm thread.

Now in autofocus mode the lens is extremely fast at locking focus especially when used to take pictures using the viewfinder. Its also much quieter than the kit lens or the 50mm f1.8. We've taken a few test pictures so you can see how the camera performs when paired to the canon t4i.

The pictures are very sharp and the colors are accurately rendered. In terms of sharpness it is just as sharp as the 50mm F1.8. However, the quality of Bokeh is much smoother on this lens than on 50mm F1.8. However the F1.8 will give you a slightly shallower depth of field. Low light performance is also very impressive as you can see in this shot.

In video mode, the lens will work very quietly with cameras equipped with continuous autofocus like the T4i, T5i or 70d. However, with both the T4i and T5i the autofocus is rather poor and the lens will hunt for focus sloppily. This isn't really an issue with the lens, but more an issue with the autofocus system on those cameras. The video quality overall is pretty good; The colors are well rendered and the video is sharp. However, on almost every camera other than the Canon 70d, we recommend using this lens in the manual focus mode.

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