after finding approx. 50 tiny sprinkles on my D600 sensor (changing lenses in cloudy and windy conditions)I decided to use a product called Sensor-film for cleaning. Looks like a fatal mistake because I now have pieces of the film on the sensor on top of the not removed drops. Contacted the seller and he mentioned I used a too thin layer of the film. I tried a thicker layer twice now but the rests of the lube-film are not removed when peeling the film off.