John,
My experience with 4x5 cameras is rather limited, though I have an old
Pre-Anniversary Speed Graphic in the closet, along with a few holders. The
ground glass is in the camera back, and its focusing surface must fall in
the same plane as the emulsion surface of the film when the film holder is
inserted. If the glass is reversed, or the holders are out of normal spec,
any subject focused on the ground glass will not necessarily be in focus on
the film.
Jim Nichols
Tullahoma, TN USA
----- Original Message -----
From: "John Hudson" <OM4T@xxxxxxxxxxx>
To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Sent: Saturday, December 06, 2008 5:58 PM
Subject: Re: [OM] For sale - 4" x 5" film holders
> Just to correct or eliminate any confusion; there are no ground glass
> plates
> in these two 4" x 5" film holders of mine.
>
> I should add that both holders do look to be of solid construction and
> accurate tolerances. They have both held "out of the box" film without any
> evidence of being squished into place or slopping about in an oversized
> space.
>
> jh
>
>
>
>
> jh
>
> ----- Original Message -----
> From: "Jeff Keller" <om-list@xxxxxxxxxxx>
> To: "'Olympus Camera Discussion'" <olympus@xxxxxxxxxxxxxxxxx>
> Sent: Saturday, December 06, 2008 6:32 PM
> Subject: Re: [OM] For sale - 4" x 5" film holders
>
>
>>
>>
>> -----Original Message-----
>> From: Ken Norton [mailto:ken@xxxxxxxxxxx]
>>
>> Subject: Re: [OM] For sale - 4" x 5" film holders
>>
>>>
>>> I've only ever even touched a few 4x5s and never actually shot with one.
>>> I'll take this opportunity to ask how standard are 4x5 film holders?
>>> Do they all meet the same specification for outside dimensions and
>>> distance to film from front and back edges such that film plane distance
>>> is the same as the ground glass? Sorry, I'm almost clueless in this
>>> area.
>>>
>>
>>
>> As far as I know all 4x5 film holders meet the same standardized size and
>> shape to conform with the Graphlex back.
>>
>> AG
>>
>> -----------
>>
>> I've heard of roll film holders which have slightly different dimensions
>> for
>> the width of some of the raised bars which lock the position of the
>> holder.
>> If I remember correctly the Sinar was the odd one. I vaguely remember
>> hearing that a very early Graphic (prior to the Crown Graphic?) had an
>> issue
>> with cut film holders.
>>
>> Toyo holders have a good reputation.
>>
>> I have heard of people having problems with the ground glass not being
>> mounted correctly and I believe a few people have found defective film
>> holders. Unless the camera maker wants to make and sell film holders, he
>> has
>> to make sure his camera works with what is available.
>>
>> I've heard that above 8x10 there isn't much standardization.
>>
>> -jeff
>> (using quickload 4x5 on a 5x7 & wanting to eventually shoot some 5x7 cut
>> film)
>>
>> --
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>>
>
>
> --
> _________________________________________________________________
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>
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