Originally posted by stevebrot Sorry, I did not see your edit to the original post. Those look like the spots from the other posts and possible evidence of liquid infiltration at the edges. When you said delamination, I expected something like the material lifting from its substrate.
Good luck with Ricoh or with giving this delamination idea "wings".
By any chance have you or a previous owner ever wet-cleaned the sensor or main mirror?
Steve
The sensor was last wet-cleaned more than a year ago, and I have never cleaned the mirror with anything other than a blower bulb.
Liquid ingress seems possible, but that wouldn't really explain the spots in the middle of the AF sub-mirror, and the main mirror shows no evidence of similar contamination or damage.
Draco
---------- Post added 05-21-18 at 04:19 PM ----------
On my K-5, it looks like this:
Most of the spots in this case are dust, but notice the same discoloration around the edges.
Draco
Last edited by bwDraco; 05-21-2018 at 01:19 PM.