Sure, was talking about the rest but obviously at f/8 it won't work :) Should have been more precise.
2005/9/8, Fred <[EMAIL PROTECTED]>: > >> Another problem with the mirror is most are t-mounts and most t-mounts, > >> (all I've seen in fact), are painted. The Pentax autofocus system needs > >> a metal lens mount to short the right contacts to autofocus. > > > The Tamron 500mm SP with a KA adaptor should work nicely then :) > > I know KA adaptors are (censored) difficult to find in good condition > > and not cheap at all. > > The Tamron K (i.e., "pre-Ka") adaptor is also unpainted shiny metal (at > least the ones I've seen). And, on a mirror (with a fixed aperture), and > with the K adaptor, the lack of the A contacts is not such a great loss. > > Fred > > -- ---------------------- Thibouille ---------------------- *ist-D,Z1,SFXn,SuperA,KX,MX, P30t and KR-10x ...
