> Oh, man. I have several Pentax lenses that use filter sizes other > than 58mm. Are they all Tamrons? Hmm, they must be. In fact, a quick browse of the K mount page reveals the truth here, the only primes Pentax made were: 20mm f/4 24mm f/3.5 A/F/FA 100mm f/2.8 Macro 135mm f/2.5 A* 200mm f/4 Macro The rest must be Tamrons. At least Pentax made a few more of their own zooms. :) - Peter - 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.