If your 400/5.6 has a manual diaphragm, it's probably an SMC Pentax (K series). I believe the M has an automatic diaphragm. Paul
Martin Trucco wrote: > > SMC Pentax 15 3.5 > Rectilinear lens (this is NOT a fisheye). See it at: > www.martintrucco.com.ar/15A.jpg > www.martintrucco.com.ar/15B.jpg > USD 750.- Shipping overseas included. > > Pentax-A 28 2.8 > Pentax-M 50 1.4 > Pentax-M 100 2.8 > USD 300.- for the three of them. Shipping overseas included. > > Pentax-M 400 5.6 (manual diaphragm). Excellent optical quality. Tripod > collar included. Very good shape. See it at: > www.martintrucco.com.ar/400A.jpg > www.martintrucco.com.ar/400B.jpg > > Pentax-A Sigma 24 2.8 > Pentax screwmount M42 60 2.8 Macro 1:1 (Mamiya). This is a 1:1 macro on its > own, no extension needed. > > Martin > www.martintrucco.com.ar > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
