Canon’s STM lenses are aimed at videographers. The Stepper Motor (that’s the STM) promises quiet operation while shooting video. But how do the produced noise and the speed compare to Canon’s USM (Ultra Sonic Motor) lenses? That’s what YouTube user marconilanna tries to find out in the video above. In summary: STM lenses are definitely less noisy but a bid slower than the USM lenses. On the other hand being a bit slower allows STM lenses to refocus more smoothly. A Canon EOS 70D was used for the test.

[via PetaPixel]

This is a presentation by Philip Bloom at the Broadcast Video Expo at Excel where he is talking for Canon about the relevance of DSRLs and where the Canon EOS-1D C fits in the whole story. He describes his presentation as follows:

Canon asked me to if I was interested in doing this talk back in December, they wanted the emphasis on the strengths of 1DC. The problem is I told them was I had not shot with the 1DC so it was impossible for me to talk about it in any way at all. They understood of course and said they would get me a 1DC to try when I got back to England.

So when back in England I got the 1DC to try and I filmed a review with it. In fact I loved it so much I ended up trading my 1DX in for a 1DC.

Before I agreed to talk for Canon at the show I had to know what sort of thing they wanted me to say. I also said I would do it only if I could be totally upfront about the cons not just the pros. They said absolutely otherwise they may as well just get one of their reps to do the talk. They wanted my independent, unbiased opinion. That was essential for me.

The video lasts 52 minutes. [via philipbloom.net]

The EOS-1D C on sale at B&H and Adorama, and you can rent it at Borrow Lenses.