marck mcgill Posted November 3, 2004 Share Posted November 3, 2004 ...I ask after having seen that 2x3 plates are indeed 2 1/2 x 3 1/4 or something similar. I couldn't seem to find this information on Ilford, Kodak or Agfa websites. The reason why I'm asking is that I'm purchasing a split frame for POP paper, and I want to make sure that the negatives will fit. Link to comment Share on other sites More sharing options...
t._l._burger Posted November 3, 2004 Share Posted November 3, 2004 The EXACT size of a piece of velvia that I have lying around is 10cm x 12.5cm. Link to comment Share on other sites More sharing options...
bruce watson Posted November 3, 2004 Share Posted November 3, 2004 I measured a sheet of Tri-X and get exactly 100x125 mm which is slightly smaller than 4x5 inches. Link to comment Share on other sites More sharing options...
robert_davis2 Posted November 3, 2004 Share Posted November 3, 2004 Ansi target sizes exist. But EXACT? The targets allow for a little bigger a little smaller. It wouldn't suprise me if the different companies are slightly different in size. A mm one way A mm the other? Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted November 3, 2004 Share Posted November 3, 2004 Obsolete 4x5 film pack is slightly larger that sheet 4x5 films. In todays scanners; the 4x5 film pack negatives need a slight sometimes 1/16 inch trim; to fit the holder. In enlargers; there were different holders for both types of 4x5 negatives; with some enlargers. In plates; the sizes can be different than film sizes. Link to comment Share on other sites More sharing options...
neal_wydra1 Posted November 3, 2004 Share Posted November 3, 2004 Dear Marck, I measure an old sheet of T-Max 400 to be 99.5mm(3.918") x 125.3mm(4.934"). As you can tell from the responses, they don't vary much. Neal Wydra Link to comment Share on other sites More sharing options...
marck mcgill Posted November 3, 2004 Author Share Posted November 3, 2004 Ah, so it is EFFECTIVELY around 4x5'', without an added 1/2, 1/8 etc... Thank you very much, fellows! Link to comment Share on other sites More sharing options...
Troll Posted November 3, 2004 Share Posted November 3, 2004 Don't forget that the image size is approximately 5mm smaller in each dimension than the overall film size. So 4x5 is actually more like 95x120mm. And if that's not bad enough, you lose a few more mm when sticking it into a negative carrier. For my Omega D2 carrier, it is 92x118mm. Link to comment Share on other sites More sharing options...
marck mcgill Posted November 3, 2004 Author Share Posted November 3, 2004 Thanks, but I needed the external shape indeed. Link to comment Share on other sites More sharing options...
pvp Posted November 3, 2004 Share Posted November 3, 2004 I've got a piece of E100SW right here that seems to be about 98.5mm X 124.5mm. Of course, there is NO "exact" size, since every dimension has an allowable tolerance... ;o) Link to comment Share on other sites More sharing options...
stephen hazelton Posted November 3, 2004 Share Posted November 3, 2004 What I read a while back- they used to use 4x5 glass negatives, and when they switched to film negatives, they made it where the adaptor/holder still fit the slot for the glass plate, making it slightly less than 4x5. About 3-7/8 x 4-7/8 as I recall. I was making a pinhole camera, and the film would fall out of the homemade holder- that's how I found this out! Link to comment Share on other sites More sharing options...
silent1 Posted November 4, 2004 Share Posted November 4, 2004 Exactly right -- the glass plates that originated the format were genuinely 4" x 5" (101+ mm by 127 mm). Film is smaller in order for the film sheath (a folded sheet metal adapter with an edge thickness of a millimeter or so) to fit where the plate used to go. Modern film holders, in turn, are sized to hold the film that goes in the sheath that fits the old plate holders. Link to comment Share on other sites More sharing options...
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