Graflex.org

jjsmith · Joined: 01 Aug 2006 Posts: 4 Location: carolinas

I am in need of a viewfinder mask for my 4 x 5 Speed that has a 135 mm lens. I am using 120 roll film in a Calumet roll holder that yields a 6 x 7 format. The only information that I have found indicates that a #10 mask would be close, but not exact. Does anyone know what mask would be correct, and where I might get one? Lacking that I will try to make one if I knew the dimensions of the mask opening for my situation, format size and lens, or how to calculate the opening size. As a last resort can anyone tell me the dimensions of a #10 mask? Thanks for any help.
Joe

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What we have here is a failure to communicate -- CoolHand Luke

Dan Fromm · Joined: 14 May 2001 Posts: 2144 Location: New Jersey

alecj · Joined: 09 May 2001 Posts: 853 Location: Alabama

I don't believe there were any masks specifically made for the "perfect" [6x7] format.

pv17vv · Posted: Sat Aug 19, 2006 5:37 am Post subject:

From the 1968 guide book for Pacemakers :

2 1/4 x 2 3/4 picture size

#4 70 - 84
#3 86 - 90
#2 92 - 101
#9 103 - 125
#10 127 - 138
#11 140 - 162
#8 164 - 191
#7 192 - 227
#6 229 - 267
#5 268 - 305

BTW I think there is a mistake on the second table of the page suggested by Dan : same focal lengths are repeated twice for different masks within the same pic size.

jjsmith · Joined: 01 Aug 2006 Posts: 4 Location: carolinas

I appreciate the replies. Looks like I won't find the perfect mask, so can anyone furnish the interior dimensions of a #10 mask? Maybe I can use the dimensions to make a homemade insert until I find a #10 mask.
Joe

_________________
What we have here is a failure to communicate -- CoolHand Luke

alecj · Joined: 09 May 2001 Posts: 853 Location: Alabama

Those mask sizes for 6x7 are just approximate. No new masks were made AFAIK. Here's the original list, using those same numbers:

http://graflex.org/speed-graphic/viewfinder-masks.html

pv17vv · Posted: Sat Aug 19, 2006 5:03 pm Post subject:

14,4 x 10 mm

jjsmith · Joined: 01 Aug 2006 Posts: 4 Location: carolinas

Thanks to all for the very helpfull information. It is certainly appreciated.
Joe

_________________
What we have here is a failure to communicate -- CoolHand Luke

45PSS · Posted: Sun Aug 20, 2006 5:36 am Post subject:

cilcking on Search and typing viewfinder mask in the keywords box then selecting all the terms then clicking on Search we get:
https://graflex.org/helpboard/viewtopic.php?topic=3592&forum=1

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The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.

pv17vv · Posted: Sun Aug 20, 2006 6:11 am Post subject:

Double-checked size of my #10 with data provided in this post and I confirm my measurement. My #4 is 17.75 x 23.25 compared to 18 x 24 in the post. Seems the machine was a bit rough…

alecj · Joined: 09 May 2001 Posts: 853 Location: Alabama

Rough? Hey, good enough for Graflex. You shouldn't expect these suckers to be THAT accurate. These were action machines!

Henry · Posted: Mon Aug 21, 2006 2:09 pm Post subject:

Ditto. In my experience with the Century in 6x7, the #2 mask (correct for the 101 lens) gives a *very* approximate view, not to be relied on by any means if accuracy is sought.

pv17vv · Posted: Tue Aug 22, 2006 5:44 am Post subject:

Well this should make initial poster jjsmith comfortable about using a 6x9 mask when using a 6x7 rollholder.