John Whittingham wrote: > If it need not necessarily be a genuine Pentax lens I would recommend the > Sigma 400 f/5.6 APO, pretty sharp wide open, great build quality, CA should > be non existant as it's an APO lens. There's a test on the Canon fitting > version here: > > http://www.photozone.de/8Reviews/lenses/sigma_400_56/index.htm
I have the Sigma APO 400/5.6 in Pentax K-AF mount and I've been quite happy with it. I haven't noticed any particularly tendency toward CA, but I haven't looked for it, either. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
