The way dust appears in your flats can give a good indication of where it is in your optical train. This video explains the basics of identifying dust and how to clean your optical window – one of the most common places for dust to gather.
The way dust appears in your flats can give a good indication of where it is in your optical train. This video explains the basics of identifying dust and how to clean your optical window – one of the most common places for dust to gather.