I am new in photography. I am planning to buy a "Polarizing filter" for my lens. Actually, I know very little about this filter. So, I am not sure, does it really necessary to take good color ...
Currently I have a 7D and 2 lenses: a 18-135mm f/3.5-5.6 IS - which I use as a general purpose / go around lens - and a prime Sigma 30mm f/1.4 - mostly for concerts: indoor, low light scenarios (given ...