Re: Historical Sources for Film Holder Sizes

if anyone wants, i can copy down the specifications and citations from
this book i got. It has really specific sizes on all the different
standards for each process.

On Jul 15, 2004, at 9:43 PM, Sandy King wrote:

> Ryuji,
>
> I checked in my files to see if I had any information of the type you
> requested regarding historical information on camera formats. Sorry,
> but I could not find anything of use.
>
> As best I can surmise from my own files the 6.5" X 8.5" format appears
> to have become a standard size very late in the 19th century. It may
> well have appeared about the same time as film on nitrate base since
> all of the film holders I have seen in this size have been standard,
> whereas many plate holders sold as full plate are quite irregular.
>
> Hope someone else can help and provide a good lead. The subject is
> also very interesting to me.
>
>
>
> Sandy King
>
>
>> From: Jon Danforth <jdanforth@sc.rr.com>
>> Subject: Re: plate holders for dummies
>> Date: Tue, 13 Jul 2004 16:10:09 -0400
>>
>>> Do you know of a way to calculate or measure this? The offset, I'd
>>> imagine,
>>> would only be the thickness of a single sheet of film (anyone have
>>> this
>>> measurement handy?). I'd prefer to calculate it and input that
>>> into my
>>> design.
>>
>> Do you mean the thickness of glass used to make dry plates?
>>
>> Depending on the era I see "fifteen to an inch," "about 1/16 of an
>> inch," and 1.6mm. I think 1/16" and 1.6mm are more common later than
>> earlier ones but am not sure. There is about 1mm discrepancy between
>> 1/15" and 1/16". Oh, I'm talking about 6.5x8.5 or smaller. Some larger
>> plates used thicker glass.
>>
>> --
>> Ryuji Suzuki
>> "You have to realize that junk is not the problem in and of itself.
>> Junk is the symptom, not the problem."
>> (Bob Dylan 1971; source: No Direction Home by Robert Shelton)
>
>
Received on Thu Jul 15 23:47:09 2004