As far as i know the F and FA are both optically identical. $286 is an excellent price for the an F version, i usually see them for around $500us.
They are both AF. I have the FA verion and its super super sharp. Buy it! Regards, Paul ----- Original Message ----- From: "Gundry, Mark" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, April 17, 2002 9:58 AM Subject: 100 mm f2.8 FA (versus F) Macro > I'm in the market for a lens that works well for portraits and macro work > such as close ups of flowers. The 100mm f2.8 FA Macro seems to be the best > choice (though I'm interested in other opinions). I have searched for this > lens used, since it's a bit above my budget, but so far I've only found an > "100mm f2.8 F Macro" for $286 -- the difference, I think, is that the FA is > a newer autofocus version that has an "MTF chip." However, I have no idea > what that chip is and what it means or doesn't mean to me. Is the "F" > version equal in performance to the "FA"? I prefer autofocus for the uses > I'll put this lens to. I'm not an advanced photographer, but am getting a > couple of good fixed length lenses to replace the cheap zoom that came with > my ZX-10. I have the 50mm f1.4 FA and am looking into new and used 24s and > 28s as well. I don't mind if the wide angle lens is manual focus. > > Any advice would be appreciated. Thanks. > - > 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 .

