I have recently purchased a used lens, and I see a spot on the rear lens that I can't seem to blow off with my rocket. So I'm not sure what type of cleaner to use on it. Is the rear lens a different construction from the front? I don't want to scratch the lens or coating.
Any suggestions would be appreciated. Thanks.
Michael
70-210mm F4
Any suggestions would be appreciated. Thanks.
Michael
70-210mm F4
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