Glass Filters and Digital Cameras
There are a host of techniques such as HDR or tone mapping to improve the display of your images on computer monitors and in some cases on prints. Something that is often overlooked is the use of glass filters. For a long time I used a polarizing filter ( CPL type ) to cut reflections and help improve some of my images. I don't always want the reflections cut, however, such as in the attached/linked photo.
Color filters are an obvious choice in BW photography, but in color photography you don't want to skew the color too much; or so I thought. I realized that I preferred amber colored lenses on my sunglasses here in Florida because of all the blue light. I decided to try similar filters for my digital camera. In this case a B+W 77mm 'Skylight' 1A filter for my Canon 60D with 17-55mm USM IS and 10-22mm.
The results were very exciting and make me want to try more aggressive filters for color photography. By cutting some of the blue light ( dominant ), I can capture more of the light I want with out blowing out (over-exposing) areas of the photo. I can expose longer, pulling more shadows or elusive colors.
I will say the multi-coated filters help a lot during the day, or any time shooting into light sources. It helps reduce lens flare and I believe it improves contrast a bit too.