Digital BW, The Print

I fully agree about the softness you always get from flatbeds, and verified
that my scans from the 3200 can get an unbelievable amount of unsharp mask
before generating the usual artifacts. Was just wondering about the
difference of scanner sharpening + PS sharpening vs. sharpening twice as
much in PS (or sharpening repeatedly).
Scanning Portra400BW 6x7 at 3200 dpi, I've played a bit with unsharp mask
(not too extensively, as my printers is out of order so I'll return to that
in due time), and have found that at 100% magnification I can generally
sharpen up to 200% to 300% with radius 1.0 to 1.4, whereas viewing the
picture so that it's 1:1 with what will be the print size (13x19", which
means about 19% magnification on my monitor), it can take even 400% or 500%
with radius around 1.0.

Alessandro

> -----Original Message-----
> From: Julian Thomas [mailto:julianthomas@...]
> Sent: lunedì 17 marzo 2003 15:43
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: Re: [Digital BW] RE: Is this noise or what? (was: Epson3200 -
> Test results)
> 
> 
> You are dead right - it is better to leave sharpening until 
> PS, BUT the
> optics in the 1680 are so soft that I need both. BTW I only 
> do this in BW -
> for colour I do all the sharpening (I use Ultra Sharpen Pro) 
> in PS. One test
> I do is to take a blank neg and use a sharp knife to make a 
> score and then
> experiment with various amounts of sharpening to get a fine 
> line. Flatbed
> scanners IME just cannot get the sharpness of a film scanner. 
> People talk
> resolution numbers all the time but ignore the 'look' of 
> scanners. I note
> that this is happening with cameras i.e. the Kodak is 
> 'better' than the
> canon because it has more megapixels, noone seems to be 
> bothered about the
> image quality!
> 
> Julian
> ----- Original Message -----
> From: "Alessandro Pardi" <alessandro.pardi@...>
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Sent: Monday, March 17, 2003 3:14 PM
> Subject: RE: [Digital BW] RE: Is this noise or what? (was: 
> Epson3200 - Test
> results)
> 
> 
> > 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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