Leica M2 RF window - what is this?

[jonmanjiro]

Thanks for the thoughts everyone!

I managed to get a closer shot (please excuse the quality, this was taken on my phone through a 10x magnifying glass and heavily cropped…)

The outline around the black Thingys looks like separation to me. Yay/nay?

Given that it doesn’t impact composing/focussing I’m inclined to ignore it unless it gets notably worse. Does this sound like a bad idea to anyone?

Yikes! Definitely separation. It may have been like that for quite a while. I'd ignore it too, and just keep using the camera. And fingers crossed it doesn't get any worse.