8x10 and X-Ray film This particular Caltar is going back because it has a little nick. But this nick is nearly dead center and gleams like a little diamond when the light hits it. But an identical one opens up tomorrow, so I'll leave this thread open for smarter minds to tell me what I've got. I realize the B&L is 101 years old and has that crazy 5-speed shutter, but the glass is flawless. Not even a "cleaning mark".