Sigma MF 400mm F5.6 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:
manual focus only
1987 - 1989
*I didn't go for it yet, but a guess is, that this lens might not feature any electronics, so it actually should work on any camera like any other T mount lens.
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