On Sat, Mar 6, 2010 at 2:01 PM, Mark Roberts <[email protected]> wrote: > Adam Maas wrote: > >>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. > > In researching my possible purchase of a Sony A850 I looked into those > adapters and came to the same conclusion. But I'm interested in seeing > if the optical element can be removed to create an adapter/extension > tube for macro work. >
Yes, some application of a dremel will result in a usable, if short, extension tube that also converts mounts. -- 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.
