In 35mm, the range I most use is 35mm to 105mm; I never take action pictures, or pictures in any other situation where rapid framing/change of focal length is neccesary. Zooms have a max. aperture, size, and weight penalty, as well as the performance penalty. Show me a zoom which gives the same image quality as my Nikkor primes, with no weight or aperture penalty, and I might consider it. As of now, such a lens doesn't exist.
Originally Posted by David Lyga