I found it quite annoying when I made with my DSLR photos with screwed filters
and then wanted to change the location, since I had no lens cap that fit on the
lens with the screwed filter.
This has brought me to the idea of constructing a lens cap that also fits with
screwed-on filters. Of course, the lens cap fits only if the filter does not have
a larger diameter than the lens.
The lens cap is constructed for a Tokina AT-X 124 Pro DX.
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