***What are these spots on my photos?***

[smoke665]

I wouldn't use ROR on a sensor. Go with this.

https://www.amazon.com/gp/product/B00OPB0AB4/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

Optical cleaner of any brand won't work on oil or grease. Even isopropyl alcohol doesn't work well on oil/grease. ROR (Residual Oil Remover) is specifically designed to emulsify and remove microscopic oil residues.and while it doesn't specifically state camera sensors, it does state that it's safe for all multi-coated optical surfaces. The product was recommended by a professional repair shop as the last step in the cleaning steps I listed above.