I've just seen a Takumar 135/f2.5 in M42 screw mount for sale locally. Does anyone have any experience of this lens? Is it any good? how does it compare to the K-Mount versions? dave - 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 .