Hi, Yes, I made a thread a few days ago asking about Nikon lenses, but that was when I thought I was getting a Nikon FM2n, since then my Dad visited my Grandfather and was given an immaculate Pentax K1000, so I will be using that now, it has a Bauer E14B flash, 50mm f/2 lens and Konica 35mm lens, which I don't like because it is a screw thread and needs an adapter, and the adapter is really difficult to get off the camera, so i won't be using it, I also got another flash, a Vivitar Zoom Thyristor 2500, which works really well with the Pentax, and my Canon EOS 60D.
My question is, what lenses should I be buying for the Pentax, I have only found one true Pentax lens, a 50mm f/1.7, is it better than the f/2?

Thanks, James