| Re: sigma 10-20mm....which filters?
Hi Dave
I am assuming you are shooting digital as opposed to film in which case you should not need a vast array of filters given that most effects can be created using Raw conversion and photo editing software.With digital in camera processing there is no longer a need for light balancing and colour correction filters
My first purchase would be a Ultraviolet filter to reduce haze effects and protect the lense element from scratching. I have these permanently in place on all my lenses.
Next on the list would be a Polarizing filter (circular) for reducing reflections and darkening blue skies. Some software programs attempt to mimic this filter but it is considered by most that polarization cannot be replicated by software.
Personally I rarely use Neutral Graduation filters these days tending to use software post shoot if necessary. However, a grad filter used at time of shooting will preserve more tonal data if positioned so that it covers the brighter part of the frame. They come in a number of strengths, i.e. NDO.3 will darken by 1 f stop, NDO.6 by 2 f stops.
Filters can be exspensive for good quality, have a look on ebay shops.
Hope this is of some help.
Gerry  |