I was very happy after I got this lens, however, after a closer examination, I found a few scratches (tiny, have to shine light on it to see, otherwise doesn't visible), and slight haze on both ends of the lens. I think the haze is inside of the lens. So, I started worry, and then I found the shutter is not copal shutter as the seller mentioned, it's a synchro-compur shutter! what a bum. My question is: How a compur shutter compare to copal shutter? Can they use the same lens board? If I decide to keep the lens, where to find a place in new york area to get rid of the haze? and I am pretty sure it's single coated, right? Thank you in advance.