[Alt-photo] HOW DID FILM (AND PRINT) FORMATS ORIGINATE?

Ken Sinclair photo1 at telusplanet.net
Mon Feb 26 16:43:53 UTC 2018


Bob

If my ‘History of Art professor was (is?) correct you can put the blame (firmly) on the ‘artistic 
1 to 1.68  ratio onto  the shoulders  of Fabonacci.

Ken

> On Feb 26, 2018, at 9:01 AM, bobkiss caribsurf.com via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote:
> 
> DEAR LIST, 
> 
> A friend who is teaching asked me how our standard film (and print) formats originated, especially 4x5 8x10, 11x14, 16x20 inches. As these are in the "English" system (inches) there may be or have originally been different formats "on the continent" (Europe). She points out that painters have historically used "the golden mean" (a 1.68 aspect ratio) but photographers never seem to have recognized its significance, at least not in their standard camera/film/print formats. 
> 
> My guess was that it had to do with standard copper plate sizes for dags (full plate, half plate, quarter plate) or glass plate sizes. Of course, banquet cameras toss all this to the wind! LOL!!! 
> 
> I bet Richard and a few others will have some great info on this topic. 
> 
> CHEERS! 
> BOB 
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