Help with Kodak Flash Supermatic Shutter?
I am in the process of overhauling a Kodak Monitor Six-20 with a Flash Supermatic shutter, trying to get the camera ready for 620 camera day which is coming up in a little over a week. Today I was so pleased to finally get the shutter back together after a long and rather tortuous CLA (torturous because it is a new shutter to me and I don't yet have a manual). Everything seemed to be looking and sounding great, and in fact could tell that the slow speeds were right on the money. But unfortunately my shutter speed test showed that the fast speeds are slow, falling behind by as much as 1-1/3 stops at the top end. Any suggestions? Is there something which is perhaps not engaging properly, or maybe some adjustment I have missed?
For reference, here are my numbers, and also a plot showing the error in stops (measurement resolution is 1/6 stop):
Attachment 89414 Attachment 89415