Hey all - been really struggling with white dust spots in my DSLR scans. I was noticing a repeating pattern of spots in the same exact place even in a batch where I was using two different cameras. So I was sure it wasn’t my film cameras, and it wasn’t my developing because those spots are not visible on the negatives.
I cleaned my lens and even swapped the camera bodies. Turns out it was because I was shooting at f/16 (to try to get the most in focus). I did some tests and reduced to f/8 and then f/5.6 and as I made the aperture larger, the dust spots went away gradually. F/8 had fewer spots, and at f/5.6 there was only one or two that were noticeable that were easy enough to remove in LR.
But I’m also worried that 5.6 might be too open, or is that a concern?
Is there something I can do to be able to shoot at f/8 or higher again or is this something I should just not worry about? When I look through the lens into light I can only see the most miniscule of dust spots, and it’s a relatively brand new modern lens (albiet a 7artisans cheapo one).