I have, but not much. With the high resolution of K20D it seems I'm off cropping in post processing. Generally speaking, I think it depends a bit on available light.
BTW. This reminds me. That TC belongs else where. In your bag. -- MaritimTim 2009/5/11 AlunFoto <[email protected]>: > 2009/5/11 Tim Øsleby <[email protected]>: >> In good light it locks with the K-500/4,5 on motifs with good >> contrast. But IQ wise the combo is practically useless. >> Won't focus with Tokina ATX 150-500/5,6. So I believe the real limit >> is around f:4,5 with high contrast lenses. Could be wrong off cource. > > By the way, Tim. Have you used the A-1.4x L with the big K? > > Jostein > > -- > http://www.alunfoto.no/galleri/ > http://alunfoto.blogspot.com > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- MaritimTim -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

