Clean the contacts?

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SQLGuy
SQLGuy Forum Pro • Posts: 11,868
Clean the contacts?

I've seen this advice many times and for many different cameras. I'm curious who here has had a problem where cleaning the contacts was the definitive solution... i.e. not just coincidence with an intermittent problem that came back later.

For me, across a couple dozen different cameras and dozens of lenses, I don't think this has ever been the solution to a problem.

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A7R4a with SEL2470Z, 55Z, and a number of adapted lenses (Canon FD, Minolta AF, Canon EF, Leica, Nikon...); A7R converted to IR.

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