A good reason for keeping a filter on your lens

Started Mar 4, 2013 | Discussions thread
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LaszloBencze
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A good reason for keeping a filter on your lens
Mar 4, 2013

I'm a professional photographer taking pictures in many industrial situations with safety hazards and have always used UV filters on my lenses. I often read on DP review that using filters is silly and unnecessary.

Last week while on assignment I squatted down to take a low angle picture. I had a Canon 300 mm f4.0 lens in a pouch on my belt. The pouch was not deep enough and the lens fell out about two feet onto a concrete surface striking on the front edge. The force of the drop shattered the filter and damaged the lens cap.

When I got home I removed the remnants of the filter. There was no damage to the front element or to the threads in front. I just tested the lens and it is in the same condition as before the fall, sharp as a tack. However, I'm certain that if I had not kept a filter on it, the front element would have been damaged and the lens totaled. As it is I have to replace only a filter and a lens cap.

I never have understood the vehemence with which some people argue in favor of having no filters on lenses. This incident confirms for me the necessity of keeping them on.

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