Digital BW, The Print

Thanks all for your replies,
 
Norman examples are interesting, and I'll definitely have to make some
experiments with other films/scan settings. Definitely enhancing contrast
makes "grain" (or whatever artifact this may be) stand out, but I have other
scans from the same film (shot and developed at the same time) which can
stand the same amount of manipulations in PS without problems.
I'll post again when I have more consistent samples to report.
 
Alessandro

-----Original Message-----
From: Ernst Dinkla [mailto:E.Dinkla@...]
Sent: venerdì 14 marzo 2003 16:42
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] RE: Is this noise or what? (was: Epson3200 - Test
results)


 <snip> 
Norman writes in his report that at 300 ppi the 2450 produces
grain aliasing due to the stepping of the scanner that is then 8
times rougher. Less obvious with 600 and 1200 ppi. A grainy
colour negative as the subject. It is hard to predict when it
occurs and what the causes are.

So the grain doesn't have to be resolved to get the grain
aliasing effect.

I think it would be wise for Alessandro to check other
resolutions in scanning of the same negative and if that doesn't
help to change the film type he uses to see whether that helps.
The stepping of the 3200 could be different to the 2450 so the
2450 tests have to be translated.

 <snip> 



[Non-text portions of this message have been removed]

Julian,

do you get better results with a pre-sharpening at scan time? I always read
that it's better to leave the sharpening to Photoshop.

Alessandro

> -----Original Message-----
> From: Julian Thomas [mailto:julianthomas@...]
> Sent: domenica 16 marzo 2003 12:06
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: Re: [Digital BW] RE: Is this noise or what? (was: Epson3200 -
> Test results)
> 
> 
>  I cannot get satisfactory scans (sharp) without applying 3x3
> > pixel unsharp mask in the scanning application (Silverfast Ai 6).
> 
> Me too on a 1680. I need a 3x3 in the scanner software plus the usual
> unsharp mask tricks in PS. Just as an example - I had some 
> scans done on a
> minolta of 6x6 cm negs. On the 1680 I have to use the same 
> amount of unsharp
> mask on a 600x600 pixel 75ppi jpeg as i did on the 4800ppi 
> minolta tiff
> file. Colour is harder as the 3x3 gives me a halo effect. I've started
> shooting a BW landscape project (ok Nij stop laughing) and the lackof
> sharpness is pissing me off big time
> 
> Julian
> 
> 
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