Is a tiny bubble inside the lens normal?
Is a tiny bubble inside the lens normal? I've recently bought this Sigma 30mm f/1.4 DC DN E-Mount and noticed a very small bubble inside the lens. I still haven't got a chance to test it on a sunny day to see if there is any glare but shooting indoors doesn't seem to have any issues. Returning the lens is possible but not without a hassle. Should I return it or is it a relatively commo...