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Re: [OM] Film scanning

Subject: Re: [OM] Film scanning
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Mon, 25 Jun 2012 21:35:43 -0400
I haven't noticed that but also haven't done much scanning in quite some 
time.  Getting way behind.

Chuck Norcutt


On 6/25/2012 10:34 AM, Ken Norton wrote:
> Just a cautionary note about using swiffer for cleaning film. Swiffers
> can scratch the film. Unfortunately, these scratches are not visible
> to the human eye and may not even cut through the emulsion itself. But
> depending on whether it's a piece of embedded dirt or the cut ends of
> the swiffer threads itself, it cuts a very thin angle cut into the
> base. This creates a prism angle. When your scanner is a point-source
> light, like the Nikon, the light gets deflected away from the sensor
> and you'll get a line.
>
> About the only "safe" thing to use on film is a bulb/hair brush.
> Squeezing the bulb doesn't actually blow dust off of the negative,
> what it does is create a brief static charge in the brush itself so
> when you dust off the film, the cooties stick to the brush.
>
> You can also "charge" a brush with a blast of compressed air. If you
> blast the film with the compressed air, you end up statically charging
> the film AND you risk warping the film. Blasting the brush will blow
> off any previous cooties and will charge the hair.
>

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