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Crown with a 90.

 
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Sjixxxy



Joined: 27 Apr 2004
Posts: 109
Location: Midwest US

PostPosted: Tue Mar 22, 2011 12:43 pm    Post subject: Crown with a 90. Reply with quote

Quick question. Can the sport finder wires to be raised while using a 90mm lens on a crown graphic. They can't with my Speed since the lens is within the body when focused. I believe I read that the lack of the rear curtain makes Crowns makes the body a bit thinner, but is it enough to get the front standard outside the body with a 90?
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1banjo



Joined: 16 Nov 2008
Posts: 492
Location: kansas

PostPosted: Tue Mar 22, 2011 10:58 pm    Post subject: Reply with quote

maybe on my Crown from the film plane to the lens board were you can still use the wire
sport finder is about 77mm SO with a Angulon 6.8/90mm the Back Focal Length (S'F')
84.7mm SO its should work
BUT Super-Angulon 8/90mm Back Focal Length (S'F')66.3mm MAY NOT
banjo
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IanG



Joined: 04 Aug 2006
Posts: 74
Location: United Kingdom

PostPosted: Thu Jun 09, 2011 7:17 pm    Post subject: Reply with quote

Both my 90mm f6.8 Angulon and my 90mm f6.8 Grandagon will focus at infinity with the wire frame up. I've not tried my 90mm f5.6 Super Angulon. I should add the sports finder frame just touches the body.

Ian
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