Stephen Mick
Totally Usable
I respect your comment and why it is useful for you regarding photography, but how does this relate to video? Basically why is it that this lens cost so much? Surely a 2.8 constant aperture can't be the reason, so is it image quality?
I would seriously like to know and apologize to the op if this will derail his thread.
The 17-55 f2.8 is basically an "L" quality lens, only with less-robust weather sealing than the other Canon "L" lenses. It is far, far sharper than anything else in its class, and my copy is tack-sharp at f2.8.
How does it relate to video? Well, I shot a 10-day trip to the Amazon River basin with three lenses: the 17-55 f2.8, the 70-200 f2.8L IS and the Sigma 30mm f1.4. I don't recall ever missing a shot I wanted, and I had all the speed I needed. As a matter of fact I had two 7Ds, one lens on each ready to shoot at all times.
What lenses I choose is driven by the type of projects I shoot, and my needs are certainly different than many. But whether it's stills, video or both, my clients have expectations that my choices of gear is designed to exceed. Here's my current roster of glass:
Tokina 11-16 f2.8
Canon 17-55 f2.8 EF-S
Canon 24-105 f4L EF
Canon 70-200 f2.8L IS EF
Canon 2x EF Extender
So, with five pieces of glass I can cover a pretty massive range of focal lengths between my 5DII and my 7D. Again, if I were to be shooting narrative films and shorts, this list would be very different. But this is what works for me, and it gives me the flexibility to take on any client job and know that I have glass to deliver both exceptional video and still content.