Lens for 10D in Photography and Video April 4, 2003 On my older Canon Rebel, I used a canon 28mm f2.8 lens and it seemed to match up well with the .6 wide angle on my video camera. Because of the 1.6 FOV (Field of View) magnification factor on the 10D (and D60), I purchased a Canon 20mm f2.8 for about $400. (20mm x 1.6 = 32mm) Not quite as wide as what I'm used to but I think I can make it work. Be careful about non Canon lenses and specifically (at least from my experience) Sigma. My Sigma 28-70 f2.8 was not compatible with my new Canon 10D. Locked up the camera with an error 99 code. Called Sigma and they confirmed the incompatibility of this older lens. They said their newer model lenses would work. They offered me a $40 trade in for this older lens if I bought a new lens. I kept the old one for my old camera and bought a Canon 28-135 for my walk around lens. Another $400 or so. A long time ago, I had a Sigma 28mm that I had to return because it wasn't 100% compatible with my Canon Rebel. It worked for the most part but would lock up the camera if I tried to continuous fire the camera with the remote shutter release switch that I used for freefall. The Canon lens I bought worked great.