Re: UV Article

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From: Sandy King (sanking@clemson.edu)
Date: 12/10/01-03:40:49 PM Z


I think this is a legitimate concern. If you are using the two-tube
holders with 3/4" spacing between the tubes there is some point in
bringing the tubes closer to the contact frame where you are going to
get so close that banding (or stripping) will take place. I will bet,
for example, that if you place the contact frame at 1-2" from the
tubes there would be some banding on the print.

Sandy King

>the 3" inches is a number I pulled out of a hat.
>I am concerned that at close distance, there might be
>stripping caused by the uv light not spreading out evenly if the
>bulbs and paper are too close.
>
>has your experience be that 3" is too close or too far for even light fall?
>
>
>Jeff
>
>Judy Seigel wrote:
>
>>
>>On Thu, 6 Dec 2001, Jeff Foster wrote:
>>
>>>I hope i have at least 3" from bulb to contact frame.
>>>
>>
>>Why? That is, why 3 inches?
>>
>>Jusy
>>
>>
>
>
>--
>---
>Jeff Foster - SDA UNIX
>UC Berkeley CA

-- 


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