On Sat, Mar 6, 2010 at 8:53 AM, Sandy Harris <[email protected]> wrote: > Sasha Sobol <[email protected]> wrote: > >> D700 with in body stabilization and taking Pentax lenses. >> What about you? > > Looking at the register distances, > http://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html > > using Pentax lenses on a Sony with full-frame sensor and in-body > stabilisation should be feasible. Ebay has several. Close enough? >
Nope, it's not possible. There's two problems. The first is that the mounts are too close in diameter, so you can't get a Pentax lens's bayonet plus a mechanically sound adapter inside the A mount. The second is clearing the unusually long aperture lever of K mount. The adapters on eBay are optical, in that they're an extension tube with a cheap optic inside to restore infinity focus, but function like a teleconverter (about a 1.2x increase in focal length, 2/3rds of a stop in light loss and a massive impact on image quality). They purely add suck to your images. I really wish that you could practically adapt Pentax lenses to A mount. My Maxxum 7 would see much more use. -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- 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.
