Originally posted by TomB_tx Camera makers used to say that bubbles in the lenses were a sign of high-quality optical glass, and that they wouldn't affect the image. I have seen small bubbles in good German lenses from the 1930s-40s, but not in lenses from the 1970s and later. Even so, I wouldn't worry about it until you took photos that are unsatisfactory.
Thanks, I know this probably sounds really stupid, but I didn't even buy a dslr yet, so there's no way for me to test out the quality.
My original plan was to buy the "rare"/vintage lenses first before the prices went up.
I'm only planning to buy a dslr in about a year when I will be moving out and when I will actually be able to afford it. (Currently, selling stuff on ebay).
I'm only 14 and I know for sure that my parents will not even consider helping me purchase a dslr.
(I have a Pentax esii film camera with the lens, and using the viewfinder, it doesnt look like there's any problem, but then again the viewfinder is very dusty and small... :/
Also, I just noticed that there's an odd black thing inside the lens which LOOKS like it's floating!!! It almost looks like a smaller version of LEAD from a mechanical pencil! Very strange, I wonder if the original owner ever opened up the lens :/