This is, I think, the second version of this lens - so it comes between the original 400mm f 5.6 - often a sort of khaki green or grey - and the later 400mm APO Macro. I’ve used all 3 versions and found them all to be good performers. Results are excellent on film or digital - even at full aperture - and build quality is robust. The last APO Macro is the best of the three optically - and the best made.

One big worry with all older Sigma lenses, including this one, is compatability. This worked fine with my S2 and D70 but a later 300mm f4 APO Macro didn’t focus accurately and couldn’t be rechipped - so try before you buy if possible.

My own experiences with different manufacturers digital SLR’s are:

Nikon bodies including digital - should be OK but try to check - especially focusing accuracy.

Canon - only very recent Sigma lenses will work with any Canon digital camera body. Older lenses give error messages and lock the camera.

Minolta - I haven’t used either 5D or 7D but used lots of Sigmas with Minolta film bodies up to the 800si and had no problems.

See my compatability page - link below. If you have any experience of camera / lens combinations that don’t work please let me know and I’ll add it to the list. In most cases nobody seems to know for sure what will or will not work.

davidgold@ezeedsl.co.uk