Is there any difference between high definition and standard definition lenses?
The main difference is the quality of the glass components. Due to the high resolution of HD and the fact that HD has a 16:9 ratio only, any flaws in the optics will cause aberrations to show up. The high resolution of HD means that even a slightly out-of-focus area is more detectable. As Sony’s HD camcorders have twice as many pixels on a CCD which is the same size as a CCD in a Digi-beta, they are about one Stop less sensitive than a Digi-beta. Shoot with a 1/50th shutter (to reduce judder in 25p mode), and you lose a second Stop. So HD generally requires more light and you maybe shooting wide open. This is useful if trying to emulate the shorter depth-of-field of film lenses.
