Not sure what you mean? They both have auto/manual switch and they both say smc on the lens?
> Sounds like you have an Auto-Takumar 55mm (the one which as > the reversed aperture ring). The info you seek is available in the > Screw Mount Guide bu Gerjan Van Oosten. Is this a book? is there a site with this info? The lens > construction of the two is different (as you can see). The > guide does not > specifically indicate if the optic is different but cutaway > views of the two lens layouts appear similar. > > ppro > Alan ------------ This e-mail and any attachments are confidential. If you are not the intended recipient, please notify us immediately by reply e-mail and then delete this message from your system. Do not copy this e-mail or any attachments, use the contents for any purpose, or disclose the contents to any other person: to do so could be a breach of confidence. - 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 .
