Digital BW, The Print

Ron,

The question was to both of you. It was supposed to be "between" and 
not "better" in my post but I think you sorted it out.

I tend to forget about resolution working with Piezo and the Epson 
1200 since I always have enough for the sizes I am working at and the 
Piezo driver doesn't seem to care what you feed it in terms of dpi, 
one of its nice features.

I have been scanning my 6X7 negs at 4000 dpi so even at 24 by 30 I 
would be in the 360 dpi range. I don't know if they would hold up in 
terms of sharpness that big. I only have my 1200 dpi flatbed for 4X5, 
which at 360 only gets me up to 13" wide and I can print on the 1200. 
(Hmmmm... really need that 45 Ultra with 2500dpi...) 

Your offer to help is most generous and I just might take you up on 
it.

Thanks,
Martin Wesley

--- In DigitalBlackandWhiteThePrint@y..., "Ron Landucci" <ron@p...> 
wrote:
> Martin,
> 
> I don't know if you're addressing your question specifically to 
George, but
> I'll throw in my two cents anyhow.  I scan my negs so that I can go 
out to
> the RIP with at least 720 dpi at 100%.  I scan for 24" wide 
output.  If I
> make smaller prints, then I'm OK; sometimes sending out over 1000 
dpi to the
> RIP.  You'll have to do the math to see how much resolution you'll 
have at
> the larger file sizes.  For example, if you're printing an 11x14 at 
360 dpi,
> you'll only have 204 dpi at 20x24, and 166 dpi at 24x30.  I think 
you'll
> start to see your print quality go way down if you output less than 
360 dpi,
> and I don't think you'd be happy with the print in those sizes at 
those
> resolutions.  If you do want to go out that big, then get some more 
dpi to
> work with through a higher rez scan.  Recall that Jon Cone suggests 
feeding
> the driver only the data you get from the scan, not rezzing up.  I 
haven't
> tried Genuine Fractals for B&W work, as I can get all the dpi I 
want through
> my scanner, but I have used it for some color work, and it seems to 
do a
> great job as long as you start with a big enough file, say 20 MB or 
larger.
> 
> I don't want to turn into a service bureau, but I'd be glad to help 
any list
> members without the resources get either big prints or big scans.  
I use a
> Howtek HiResolve 8000 drum scanner and the 7000 with PiezoPro.
> 
> Ron

(snip earlier)