Originally posted by anomaly Is a 500mm f/4 lens in the works for Pentax?
Don't know, personally I don't think so. In the previous professional autofocus line, they had a 400 and a 600. Pentax never made an autofocusing 500, but they used to have a manual focusing one. My guess is that we may get news about a DA Star 400 f/4.5 or f/5.6 in the next update of the lens roadmap. A 400 on APS-C will give similar field of view as a 600 lens on 35mm format.
What is most important is to bring out midlevel telezooms. There is quite a gap between the announced DA Star tele's and the DA 50-200 f/4-5.6. Pentax are working on a 55-300 zoom, but it seems to build upon the 50-200 - so it is consumer level. What I miss is a midlevel telephoto zoom
Oh, and I would welcome a DA 135 f/2.8 ED SDM.
Take care
R