I have something in my center that has resisted cleaning. I’ve tried several times and it just won’t come off. It has been there for years and is only visible with open sky pics as it’s in the top left of the screen. It could be a tiny scratch. Tried again yesterday and no luck. I out a significant amount of pressure and went over it several times and it is still there. I may take it for a pro cleaning at Hunts. Or I may continue to ignore it. anyone have any experience where YOU couldn’t get it but a camera store person was successful?
Yes. That's how I learned about ROR https://www.bhphotovideo.com/c/product/64495-REG/ROR_RO212D_Residual_Oil_Remover.html
I have never taken my cameras to a store for cleaning, I do it myself with the proper tools. Some spots are stubborn and different fluids can be beneficial. I recommend a sensor loupe that has enough LED’s to illuminate the sensor from various angles. This provides shadows around the particulate for easier viewing. It will also assist in determining if it is gunk or a scratch. FWIW, I bought a Fuji XT-1 when they first came out as a light travel system and it had a big dust particle that I only determined with a sensor loupe was under the sensor glass. So much for quality control, I sold off the entire Fuji system and never looked back.
I cleaned it!! I was so nervous, my hand was super shaky but in the end it was really easy; thank you for the advice and encouragement! My camera still works! yay!