Quote:
Originally Posted by alcheng
UV filter is needed, unless the lenses used within the lens are glass.
Most of the less expensive lenses are using polycarbonate material, light rays (including UV) going through the lens elements to the sensor, from time to time, the UV will turn the polycarbonate material into yellowish thus affect the quality thus the lifespan of the lens itself.
|
This argument only works for film bodies. Film sensors are definitely susceptible to UV and it can change the exposure of the photo. So the use of a UV filter would be needed to mitigate this. However, Im going to guess that most of us use digital cameras and their sensors are not effected in the way you describe and using UV filters can even introduce flair and color casts.