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Canon 24-70mm f/2.8L with cracked filter stuck on lense. Any ideas to remove?

Started May 22, 2013 | Questions thread
tim73
tim73 Regular Member • Posts: 489
More reasons to avoid UV filters
1

MASTERPPA wrote:

Which filters are those?

Heliopan UV on a EF 28-135mm lens (the only filter-lens combination I still posses).  This was just a quick test with a desk-lamp as a light source. Notice that the un-filtered shot has no ghost reflections, which shows that my lighting was far from extreme.  With a stronger narrower light source - such as the sun - the reflections would be even more objectionable.

I stopped using UV filters about 15 years ago, reasoning that good-quality filters would cost more than any lens repairs I was likely to require.  Moreover the filter is more fragile than the front-element on the lens.  Should the filter take a heavy blow it would be likely to send shards of glass onto the lens's front element, turning a point-impact into a deluge of scratches.

Since then none of my lenses have received any damage to the glass.  I'm careful, but I do a lot of hiking and travelling and I don't like carrying bulky padded camera bags - so my gear does take knocks.  If I do scratch the front surface of a lens it probably won't affect the image.  It won't make a pattern or shape on the focal plane, and most of the scattered light will be directed away from the image sensor.  So I don't worry about it.

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