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The Six Speeds for the Speed
Graflex.org Forum Index -> Speed Graphic Help
AuthorMessage
Barney
Joined: 16 Jul 2003
Posts: 47
PostPosted: Wed Jun 09, 2004 10:58 pm

What are the six speeds for the focal plane shutter in the later Speed Graphics?
disemjg
Joined: 10 Jan 2002
Posts: 474
PostPosted: Thu Jun 10, 2004 12:19 am

The nominal speeds are:

30, 50, 125, 250, 500, 1000

I always wondered why they used a 50th when the other speeds were the ANSI progression.
Les
Joined: 09 May 2001
Posts: 2682
PostPosted: Thu Jun 10, 2004 12:03 pm

Earlier pacemakers had a 1/100 instead of 1/125. Not sure when they made the change.
Barney
Joined: 16 Jul 2003
Posts: 47
PostPosted: Thu Jun 10, 2004 2:13 pm

Thanks.
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