I got a used Nikon AF-S Micro NIKKOR 60mm 1:2.8 G ED lens, but notice these scratches on the rear element:
Am I correct that the white marks are scratches and will these matter or will blur of unfocused light make them irrelevant? If these are scratches, can the lens be repaired to replace the scratched glass at a reasonable price?
Here is what sky looks like through this lens at f-32 after cleaning the image sensor with compressed air:
The black dots appear to all be from the sensor, so other than those, I think the scratches, if they are scratches, cannot be seen, but perhaps this is not the way to see them?