From: Sandy King (sanking@clemson.edu)
Date: 04/12/02-09:16:15 PM Z
Gregory Blank wrote:
>You could possible use the glass ( I have not tried scanning film without
>the masks) Flatness is only an issue for 120 film/thinner base.
Why is film flatness not an issue for sheet film?
>
>The Light source for the scanner is 4x9 exactly (runs down the middle of the
>glass plate) Doubtfull it will cover 5x7
The width of the light opening is 4 5/8". I thought it might be
possible to do a full scan of a 5X7 negative, or very close, because
the actual width of the 5x7 format is about 4 5/8", depending on film
holder, because the grooves that the film slides into in the holder
cuts off about 3/16" on each side.
>
>Omega Satter distributes an alternative light source for flatbed scanners
>I believe is 6x9 it is desined for transparency scanning.
Is this an item for the Epson 2450? If so please tell me how I can
find out more about this item.
Sandy King
>
>800-777-6634
>
>
>
>
>on 4/11/02 7:43 PM, Sandy King at sanking@clemson.edu wrote:
>
>> Some weeks back there was a thread on film flatness with the Epson
>> 1680 and 2450 scanners. I found this message from Jeff Mickey in the
>> archives.
>>
>>
>> On Mon, 18 Mar 2002, Gregory W. Blank wrote:
>>
>>>
>>>
>>> I find this to be the case as well using the 2450. maybe slide some tape or
>>> light weight cardboard inside the edges of the holder. ( Its worse when the
>>> scanner warms up)
>>>
>>
>> Same here...I made my own holders. I use 8th..?..inch
>> presentation board, and tape the film carefully to the board. The spacing
>> above the glass is about the same Epsons holders. One caveat, at least on
>> the 2450, there is an aproxmatly 1 inch deep by 4 inch long notch that
>> is what the scanner uses to calculate exposure. It needs to be there :).
>> jeff
>>
>>
>> I am interested in fabricating some film holders for this scanner and
>> have a couple of questions for anyone who might have an answer.
>>
>> 1. Will the light cover an additional inch on the side to allow full
>> frame 5X7 scans?
>>
>> 2. Could one use a piece of very thin glass to get absolute flatness,
>> or is there some reason glass should not be used?
>>
>> Sandy King
>>
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