Hmmm. One of my Super Programs is in the shop again for the same reason as before: I've damaged the autodiaphragm mechanism. And what lens is stuck in it and must be removed by the repair shop? The Vivitar Series 1 90-180/4.5 Flat Field Macro Zoom. Coincidence?
Fred wrote: The fact that they were released before the arrival of the LX is the likely cause of an apparent mechanical incompatibility for use with the LX. While my VS1 35-85/2.8 works (like the proverbial charm) with an ME Super or a Super Program, there is a problem with mounting it on my LX's. I had to do a wee bit of filing down (after masking thoroughly the rest of the lens) of one corner or the rather long baffle (or "shield") at the lower part of mount end of the lens, to prevent contact between it and the upper part of the LX's mirror box baffle when first inserting the lens into the LX's K-mount (before twisting it into place) and/or when untwisting the lens to remove it from the mount. Paul Franklin Stregevsky - 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 .

