--- David Oswald <[EMAIL PROTECTED]> wrote: > Aside from the built-in hood on the FA version of Pentax's 135mm lens, > and the MTF program line data, are there any other differences between > the SMC Pentax-FA 135 f/2.8 (IF) and the SMC Pentax-F 135mm f/2.8(IF)?
They do mechanically. The inner structure of FA is less prone to focus shift due to mechanical failure. However, the inner elements of FA also wrobble a little more and should explain the lower MTF on photodo. Alan Chan http://www.pbase.com/wlachan __________________________________ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your mobile phone. http://mobile.yahoo.com/learn/mail
