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		csanford
 
 
  Joined: 23 Mar 2003 Posts: 2 Location: Northeast
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				 Posted: Tue Mar 25, 2003 1:20 pm    Post subject:  | 
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				| I'm just getting started with traditional medium format photography and have acquired a Century Graphic with a 103mm lens and a "23" 6x9 roll film back. Unfortunately there is no mask in the viewfinder.  I was hoping someone could advise me as to which one I need; any help would be greatly appreciated... | 
			 
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		RichS
 
 
  Joined: 18 Oct 2001 Posts: 1468 Location: South of Rochester, NY
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				 Posted: Tue Mar 25, 2003 6:08 pm    Post subject:  | 
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				According to the book, the standard mask for the 103mm would be a number 2. I think that the 6x9 is so close to 2 1/4 x 3 1/4 that they made no special masks for that, or at least not listed in the book...
 
For a 2 1/4 x 2 1/4 (6x6) it would be a number 12...
 
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		csanford
 
 
  Joined: 23 Mar 2003 Posts: 2 Location: Northeast
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				 Posted: Tue Mar 25, 2003 7:14 pm    Post subject:  | 
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				Thanks for the information; now I'll be able to actually see what I should be photographing...
 
 
I really appreciate it! | 
			 
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		dvonk
 
 
  Joined: 16 Feb 2004 Posts: 31 Location: Omaha, NE
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				 Posted: Fri Apr 02, 2004 4:10 pm    Post subject:  | 
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				| i have a pacemaker crown 4x5 with a 135mm optar lens and a 120 roll film 6x9 adapter... what number viewfinder mask would i need? | 
			 
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		sobahguy
 
 
  Joined: 09 Oct 2001 Posts: 173 Location: Massachusetts
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				 Posted: Fri Apr 02, 2004 4:47 pm    Post subject:  | 
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				Hi Dvonk.........
 
Have a look here:
 
 
http://graflex.org/speed-graphic/viewfinder-masks.html
 
 
If you utilize the SEARCH function of this helpboard and do a "viewfinder mask" keyword search, you should see where these have been discussed before.
 
 
With my 135mm lenses I use a #4 mask for 4x5 
 
With my RH-10 back on the 45 Crown or SSG I use a #10 mask for 6x7 format.  
 
AFAIK (from following these boards) Graflex didn't make a 6x7 specific mask so the #10 mask with a 135mm is as close an approximation as I think I will ever get, but yes the #10 mask is right if you're using a 6x9cm (2.25 x 3.25-inch) roll-back.
 
 
[ This Message was edited by: sobahguy on 2004-04-02 08:53 ] | 
			 
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		dvonk
 
 
  Joined: 16 Feb 2004 Posts: 31 Location: Omaha, NE
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				 Posted: Fri Apr 02, 2004 5:38 pm    Post subject:  | 
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				| excellent.  thank you very much. | 
			 
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