What lens to buy?
What lens to buy? Hi, I have a few different lens options to buy for my Pentax K-x. I’d use them mostly for wildlife architecture and Portraits. I already own a 18-55mm kit, a 35-70mm manual focus and a 70-210mm AF lens. I now want to buy a lens with 300mm (or more but can’t find any) and use it with either a screw on or normal teleconverter. I have following opt...