Rollscanners : Message: Re: [Rollscanners] Recent MK3a Experience of Interest

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Message #1507 of 2283 |

Re: [Rollscanners] Recent MK3a Experience of Interest

To amplifly on what Craig said it would be quite interesting to see the
reflectance spectrum of the problematic paper. That would give indicate
if something would be gained by using narrow-spectrum light and if so,
what color to use. Does anyone here have access to a spectrometer?

Bill

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Bill Wetzel 732-530-1128
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Little Silver, NJ 07739 http://www.faradic.net/~billw
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Mon Aug 16, 2004 2:04 pm

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Message #1507 of 2283 |

Expand Messages	Author	Sort by Date
After scanning some 1,800 rolls, I admit to having grown a little complacent, naively thinking I've seen it all. However, some recent experiences, giving me...	Terry Smythe tesmythe	Aug 16, 2004 4:18 am
Terry, I am wondering-- what would happen to your sig/noise ratio if you were to "filter" your light source? If the paper is brown then there's a lot of yellow...	Craig Brougher gt300us	Aug 16, 2004 11:32 am
To amplifly on what Craig said it would be quite interesting to see the reflectance spectrum of the problematic paper. That would give indicate if something...	Bill Wetzel wrwetzel	Aug 16, 2004 2:04 pm
On Mon, 16 Aug 2004 "Craig Brougher" <craigbr@...> ... Thank you for your suggestion of this vexing problem. A few of these very old 58n rolls...	Terry Smythe tesmythe	Aug 16, 2004 3:31 pm
Terry, I don't know exactly what filters to use, but start first with something cheap and easily obtainable-- like bright yellow cellophane wrapping paper. Or...	Craig Brougher gt300us	Aug 16, 2004 3:58 pm
Actually, if I remember now, oblique lighting shows much less density change than direct lighting does because it's reflecting at an angle. Direct lighting if...	Craig Brougher gt300us	Aug 16, 2004 4:06 pm
... Hi Terry, I don't know if you have the capability to switch over to using the internal CCFL that is built into the Dyna-CIS unit or not, but I have also ...	WTrachtman wstco2001	Aug 16, 2004 5:01 pm
... We have found a real easy solution for scanning light or translucent rolls on our (reflective light) Ideal scanner. We merely use a piece of black film...	Julie Johnson julie013001	Aug 17, 2004 1:29 pm

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