Back in the day, lens cleaning was a front and center concern, with everyone discussing their preferred methods and products. I had a blower brush, tissues, and fluid as part of my kit. But now, ...
I have an old metal engraved plate of a picture of my family that was used by the newspaper back in the 1950's. Unfortunately, it has a lot of white type spots of some kind of powder/crystal growth ...
I have read several questions here regarding dust in a camera lens: should I be worried about getting dust, will it affect the image, and is it a problem. One answer suggested that "zoom lenses are ...