You might also consider the manual focus Tamron 17mm. Mine is at work so I cannot confirm the f stop but I think it is 3.5. It requires an Adaptall 2 mount. When I got mine I asked our professional photographer at work to check it out and he was impressed with its performance.
KEH often has a few used ones. At one time prices were around $300 but I have not checked them in a couple of years. George Baumgardner - 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 .