Sigma MF 600mm F8.0 Zen Mirror Specifications
reported for 2001 issue* (Err 99 - not compatible with Canon EOS bodies released since 2001)
Diagonal Angle of View:
Number of Aperture Blades:
95mm front, 30.5mm rear filter
manual focus only
*I didn't go for it yet, but my guess is, that this lens doesn't feature any electronics, so it actually should work on any camera like any other T mount lens.