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<blockquote data-quote="WayneF" data-source="post: 465988" data-attributes="member: 12496">Hoya filters are a fine brand, but HD means High Durability coatings (probably a good thing, but it does not mean High Definition).<a href="http://www.hoyafilter.com/hoya/products/hdfilters/hdfiltercirpl/" target="_blank">HOYA | The Difference is Clear</a>Very important - You do NOT want linear filters...&nbsp; A DSLR definitely needs Circular polarizing filters.&nbsp; Linear can interfere with the focusing system.The main difference in the many choices are the coatings (a film deposited on the glass elements), which are designed to prevent reflections bouncing around between filter and lens glass, which causes ghost images, etc.&nbsp;&nbsp; Cheap filters have poor coatings, expensive filters have much better and exotic coatings, possibly a few choices of coatings.&nbsp; And to Hoya, HD means High Durability coating (less likely to get scratched or rub off).&nbsp;&nbsp; Moose is a <a href="http://www.moosepeterson.com/blog/" target="_blank">famous wildlife photographer</a>, who endorses and gets a commission on that one.Another pretty good choice is the Nikon polarizing filters, which are made by someone, usually said to be Hoya.&nbsp; But they at least represent one single choice that is judged to be a good combination of quality and price (my opinion).</blockquote>

[QUOTE="WayneF, post: 465988, member: 12496"] Hoya filters are a fine brand, but HD means High Durability coatings (probably a good thing, but it does not mean High Definition). [URL="http://www.hoyafilter.com/hoya/products/hdfilters/hdfiltercirpl/"]HOYA | The Difference is Clear[/URL] Very important - You do NOT want linear filters... A DSLR definitely needs Circular polarizing filters. Linear can interfere with the focusing system. The main difference in the many choices are the coatings (a film deposited on the glass elements), which are designed to prevent reflections bouncing around between filter and lens glass, which causes ghost images, etc. Cheap filters have poor coatings, expensive filters have much better and exotic coatings, possibly a few choices of coatings. And to Hoya, HD means High Durability coating (less likely to get scratched or rub off). Moose is a [URL="http://www.moosepeterson.com/blog/"]famous wildlife photographer[/URL], who endorses and gets a commission on that one. Another pretty good choice is the Nikon polarizing filters, which are made by someone, usually said to be Hoya. But they at least represent one single choice that is judged to be a good combination of quality and price (my opinion). [/QUOTE]

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