The adaptall mound doesn't work with Autofocus lenses, or more properly all autofocus lenses have dedicated mounts. In fact you won't even get auto aperture on these lenses if you get a mount for Canon EOS or whatever Sony ne. Minolta/Konica calls their autofocus mount. There's an internal motor to stop down the aperture, and the mount doesn't supply one.
Francis wrote: > Thanks for your help guys! > The Pentax A and FA versions I've seen so far are, for me, prohibitively > expensive (2,000.00 -3,500.00). Do old beaters (that still work) ever > sell for < 1000 ? > > Mike: when you said "You can get an AF version that will work with all > present Pentax DSLRs" are you referring to a AF version of the adapter? > Or a newer version of the lens? If the latter, do you know if these are > also "adaplall" so that if I found one in Canon/Nikon mount I could just > get a new adapter? > > > Thanks again, > Francis - (foaming at the mouth) > > mike wilson wrote: > > Happy birthday. The Tamron is an excellent lens, so close in imaging > capabilities to the Pentax in everything but price that you will find it > difficult to distinguish between them. The manual focus version uses an > adaptor mount that allows you to choose between A, M or screwmount Pentax > cameras. Or most other popular mounts. The adaptors are about £50 new but > not so easy to find like that, these days. You can get an AF version that > will work with all present Pentax DSLRs. Or you could get the Pentax AF 1.7 > converter and the manual version...... > > >>> From: Francis <[EMAIL PROTECTED]> >>> Date: 2008/03/01 Sat PM 07:59:08 GMT >>> To: Pentax-Discuss Mail List <[email protected]> >>> Subject: Need advice about 300mm 2.8 (I'm a lucky dog) >>> >>> >>> Yesterday I turned 5. >>> And my mommy and daddy gave me a card that said: 300mm F2.8 >>> >>> I just about exploded! I've taken tens of thousands of bird photos over >>> the last few years, all with a good but not quite well suited K200mm 2.5. >>> >>> So now the question is which one should I get? Have any of you used one >>> of the old Tamron 300mm f2.8? Are they A enabled or is it green button >>> material? And when they say "for canon FD" or for something else, does >>> that just mean it has that adapter on it? Or are they mount specific? >>> how about the older Tokina telephotos? Are they good (and cheapish)? >>> >>> Any suggestions on this would be muchly appreciated! >>> >>> > > > -- Vote for Cthulhu. Why settle for a lesser evil... -- Dr. Jerry Pournelle -- 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.
