Some RF chips IIRC -
Yes, it's fuzzy - but trying to handhold a camera body at around the right focal distance from the projection lens is a bit fraught. Not full frame either - probably down to the CCD sensor size, I guess. Exposure isn't too bad though.
Next up, I shall have a crack at machining a suitable adaptor out of acetal to make life a bit easier - although the ability to take photos through the microscope is very much secondary to the use of being able to see what I'm doing while stone setting.