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UV Filters

Posted On: Aug 7, 2019

Seen by: 308

Categories: Info

Author: Ton

uv filter When you buy a camera or lens, you are probably adviced to buy a UV-lens for protection against UV-light. This filter would keep harmful radiation out and improve image quality.

This has always puzzled me, because the average lens has at least 5 or more elements which all would let the radiation pass.

No, the real reason to use a filter on your lens is to protect the front element. From experience I know this can prove to be very useful. Manufacturers know this and are selling socalled 'protect filters'.

However, you don't necessarily need to buy a costly filter. Several tests have proven that there is no optical difference compared to a cheaper ones. You might benefit from better anti-reflection in difficult circumstances. Even from well known brands it is possible to obtain a filter for € 25,- or less, depending on the diameter of the lens.

Buy a thin version if you plan to use additional lenses. Several fiilters stacked together could cause vignetting (darkened corners) with wide angle lenses.

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