Other Photography Gadgets
Circular Polarizer Filter
Polarizers are not cheap filters (when compared for example with UV filters) and that they get more expensive the bigger the lens diameter that you have. As a result you might want to just buy them for select lenses, for example the lenses that you typically use for landscapes and outdoor photography.
Polarizing filters are typically thicker than regular filters and therefore can result in unwanted vignetting. Also avoid using a polarizing filter on ultra wide-angle lenses. You might end up with a partially dark sky that will be tough to fix in post-processing.
In some high-contrast situations it might be necessary to stack a polarizing filter with a neutral density filter.
A key feature you should always look for in high quality filters is MRC, which stands for “Multi-resistant coating”. No matter what brand you go with, always make sure that the filter comes with this particular coating. This anti-reflection coating is the key to getting little or no additional ghosting/flare in your photos.
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