As already mentioned in other reviews in the 2022, the problem is to find a protective filter. In fact, it’s not even a filter, but a whole system. I found such a fotodiax system. such a lens 810 carcass. in general, I assembled this whole structure . and decided that I need to buy another carcass. maybe 810 with a battery pack at least. in general, I don’t recommend owners of 610 and df. the view is not so hot)))))))
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