Hi everyone! So I recently bought a Speed Graphic off the bay that was in decent condition and came with the 127mm kodak. I tested the lens through all its speeds and it SEEMS pretty dead on. However, when I run polaroid through it, all the shots are signifigantly over exposed... In afternoon light, i have to shoot at 400 f16 or above to not blow out ISO 100 film.. but my meter calls for 100 and 4.7... So my question is this, #1 is it common for lens this old to be a little slow at some speeds (1 second seems dead on) #2 how do I check that this is indeed a crapped out lens (Im all film now and the only meter I have is the L508 that Im using) #3 is there any way to tell if my meter is working the way its supposed to? (I metered correctly by the way..in fact, did two shots metering for the sky and one for the darks to see if I could get it in ) I was going to shoot a portrait with it this week, but now Im nervous to use real film w/o being able to at least meter it... Thanks everyone!