Re: anti-newton ring glass

You might also try laying a clear piece of glass over your neg/transparency.
It doesn't really need to be, and probably shouldn't be, any larger than the
film strip. That way it stays flat to the scan glass and you don't get the
'gapping' that causes Newton's rings. It also eliminates the need for tape.

Even when using a film holder you can occaisionally get some warping of the
film strip, especially in a larger format. Taping a neg/transparency can
also inadvertantly cause this by placing some uneven tension around the
perimeter.

Just a thought.

----- Original Message -----
From: "Traci Bunkers" <bonkers@bonkersfiber.com>
To: <pinhole-discussion@spitbite.org>
Sent: Wednesday, December 08, 2004 7:00 PM
Subject: Re: [pinhole-discussion] anti-newton ring glass

> Hi Chris,
> What a great idea! I hadn't thought of making my own holder. I think I'll
> give that a try before ordering any gadgets!
>
> Traci Bunkers
> Bonkers Handmade Originals
> Tub Legs Zinestress
> http://www.bonkersfiber.com
>
> On Dec 8, 2004, at 5:34 PM, Pinhole Blender wrote:
>
>> I used black mat board and cut an extra long negative holder. I measured
>> the height of the negative in its present carrier and found that it was
>> the same height as the black mat board would make it. Just line the mat
>> board up to your present holder and trace its outline then extend the
>> 120 area in the direction of your light. On my epson scanner there is a
>> cut out section at the top that the scanner uses to set the calibration
>> with. Make sure you cut this area out as well. I just tape my negatives
>> to this holder and position it on my scanner. I laminated my holder so
>> that tape pulls off easily but a layer of packing tape around the
>> edge's should work. This seems to work well when I scan my pinhole
>> blender images..
>>
>> Chris
>> --
>> Pinhole Blender
>> chris@pinholeblender.com
>> http://www.pinholeblender.com
>>
>>
>>> -------- Original Message --------
>>> Subject: [pinhole-discussion] anti-newton ring glass
>>> From: "Traci Bunkers" <bonkers@bonkersfiber.com>
>>> Date: Wed, December 08, 2004 11:46 am
>>> To: pinhole-discussion@spitbite.org
>>>
>>> I am thinking of buying anti-newton ring glass for when I scan long
>>> negatives on my flat-bed scanner that are too long for my 120 film
>>> holder.
>>>
>>> Has anyone had experience with this? Here's the one I was looking at:
>>> http://home.earthlink.net/~dougfisher/holder/insert.html
>>>
>>> Traci Bunkers
>>> Bonkers Handmade Originals
>>> Tub Legs Zinestress
>>> http://www.bonkersfiber.com
>>>
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>>
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>
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Received on Wed Dec 8 19:52:58 2004