Originally Posted by Kami
On DPR, there has been quite a few posts on K-mount "gems" by Adam-T and others. One of the lenses that was raved about was the one you have listed above.
Its a push-pull design with a 62mm filter diameter. I haven't used mine extensively but it is pretty sharp. Having a constant 3.8 all the way through the zoom range is nice, too.
I have this lens and the matched doubler that goes with it. I was pleasantly surprised with the quality of the lens both with and without the doubler. Good contrast, sharpness and color rendetion. I purchased a Super Program on ebay and the lens came with it. At the time I considered it just a bonus and planned to sell it to reduce the price of the Super Program. But I have decided to keep it after trying the lens. It is quite heavy though so I don't carry it unless I need the reach of a 150mm - 410mm zoom. With the matched doubler attached it works out to approximately a maximum aperture of 6.7 or so but it works OK with fast film with plenty of sunlight like we have here in California. I haven't tried the macro.
Mike