Digital BW, The Print

What are you using to avoid newton rings? 

Ken

> -----Original Message-----
> From: DigitalBlackandWhiteThePrint@yahoogroups.com 
> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On 
> Behalf Of bobbysandstrom
> Sent: Wednesday, January 18, 2006 4:08 PM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: Re: [Digital BW] Hats off to CRANE for their Museo 
> Silver Rag.
> 
> Bob:
> 
> I tested by doing the following.... 1x, 2x, 4x, 8x, 16x 
> passes. I then looked at the scans in photoshop at 100% and 
> larger. You can see that each scan got progressively better 
> with removing the noise. 16x was better than 8x and so on. 
> The file is huge! I can only go up to 1800dpi because the 
> file goes over the limit that can be handled. I end up with 
> about 1.35gig files using 48bit mode. I use SilverFast Studio 
> withe the Epson 4990. I don't do any tweaking other than 
> setting the frame around the image. I leave all the 
> processing to photoshop. Make sure you get the right version 
> of the software because lesser priced versions have 16x mode 
> but don't use 16 different scans with the noise reduction 
> scheme. I guess the way the noise reduction works is by 
> eliminating the "random" pixels... those that show up in 
> different spots with each pass. So the software compares each 
> pass to find the consistent pixels and gets rid of the rest. 
> Being that noise shows up randomly, this works like a charm.
> Also, I tape the neg down with red ruby litho tape emulsion 
> side up. I first do an 8x pass to heat the neg then retape flat.
> 
> Good Luck!