Originally posted by V-NYC Hi
Its just that I see so many lenses that people like and get to do a lot with. While reading about other camera in my search I always heard about the 50mm being a great lens to walk around with and a must have. Is there a similar for the Pentax? or to wait? Also.. I was looking at battery grips ( ebay) how is that to start too? Sorry for all the questions.
Most of the people who claim the 50 is a great walkaround focal length are thinking in film terms, or were told that by people who were thinking in film terms. In APS-C terms, you want something around the 28-35mm FOV for a 50mm equivalent. There are lots of good choices in this range, from the very nice Pentax and Vivitar 28mm f/2-2.8 primes to the FA 35mm f/2 and DA 35mm f/2.8 macro. Some would go even further and suggest the DA 40mm f/2.8, but I find that to be just too long a FOV for walkaround. YMMV.
edit: to clarify, since you seem pretty new to dSLRs in general... the sensors that most dSLRs use are in what's called APS-C format, which is just a standardized physical size. The area of these sensors is somewhat smaller than the area of a 35mm film negative. All lenses made for dSLRs have focal length indicators (50mm, 28mm, etc) that don't reflect the FOV on an APS-C sensor. A 50mm lens on digital looks like a 75mm lens on film, etc etc.