How important is lenght of lens for detecting sensor stains?
Longest lense I have is FA 135mm, and while checking my k-5, i got these.
100% crop, center of the frame, f32, focused to infinity K-5 serial 40xxx..
I can barely see it, but what concernes me is the " line" spots are aligned to.
To be honest, I had more visible dust spots on my k-x at f22 that I did not bother to clean, but if focal lenght is factor - i.e. longer lens will pronounce more those spots - I might reconsider my actions.
So, is 135mm too short for stains check up, or should I already see the stains more clearer at this focal length, than I see it on my example?
If there is more appropriate thread for my question, mods feel free to move it.
Thank you.