RE: LS-2000 help

["Sokolowski, Ed" <esokolowski@xxxxxxxxx>]

Bill..... Sorry I didnt group them together and reading back I t seams that
I DID. Use unsharp msking NOT sharpening 2 different things. I dont have a
quick rule of thumb answer for unsharp masking so I did some tests. Thats
probably the best way to see what is appealing to you. 

As for the LightJet. I have never sent anything to output on one. I have
been thinking of doing some of my 6X17's but I have been lazy. I would think
that the same rules hold true. Do you have a local Quickprinter that has
one? Ask them what trhey are using as a starting point.

Ed

> ----------
> From: 	Bill Glickman
> Reply To: 	panorama-l@xxxxxxxxxxxxxxxxx
> Sent: 	Tuesday, August 8, 2000 1:55 PM
> To: 	panorama-l@xxxxxxxxxxxxxxxxx
> Subject: 	Re: LS-2000 help
> 
> Ed
> 
>      Thank you for the response......   just to clarify one thing...
> during
> the drum scan, my scanning software offers Unsharp Masking, not
> sharpening.... I was not aware if you were grouping them in the same
> category?   If I do not apply any unsharp masking, the images look very
> weak
> vs. applying just a bit.  Are you saying NO, do not apply USM, or do not
> apply sharpening during the scan?
> 
>        Also, do you ever print to the CSI light Jet 5000?  If so, what
> settings do you scan for that...LPI, etc.
> 
> 
> Thanks Ed
> Bill G
> 
> 
> 
> 
> > Hi Bill,
> >
> > First understand what sharpening does,  Simply put...   To sharpen an
> image
> > the software that you use finds a black line  and blends a white line
> right
> > next to it (no black lines the software will use a white lineand place a
> > black line there). You can see this if you look close after you sharpen.
> You
> > can REALLY see it if you oversharpen. I do not like to scan with
> sharpening
> > ON because the software places those artifacts in the origional data and
> you
> > cant go back. So I Scan, Color correct then sharpen IF needed. Or apply
> an
> > unsharp mask. So Dont sharpen when you scan.
> >
> > Ok on to the scaling. Scanning at a large size and reducing is the BEST
> > CASE. You are effectivly increasing the scan resolution and the output
> will
> > be just fine. What I was refering to was the guys that scan an image at
> HIGH
> > DPI 600, 1200, 2400  and then after the image is saved the BLOW UP the
> image
> > to 11X14 or 16x20 and wonder why the output looks like poop! What I was
> > saying is scan your image to the final size you are going to use. For
> > example: If you have a 4x5 and you need an 8X10 Final Scan the image at
> 200%
> > not at the max resolution of the scanner and then blow it up. Even
> though
> > the image file seems big It does not contain the DATA to increase the
> size.
> > Once again you can DECREESE the size and the resolution will increase
> but
> > with this method you can end up with 1x2" 100Mb image files.
> >
> > 1 final thing If you really really wanna figure out exactly what to scan
> > your images at here is THE formula.......
> >
> > DPI over LPI Squared +1=256
> >
> > Where DPI is the scan scan resolution and LPI is the Line screen the
> printer
> > will be using (Epson printers = 150LPI) Square this value and add1. The
> > final number = 256 levels of gray. That is the maximum number of colors
> the
> > printer scanner combination can reproduce. If after you figure this
> formula
> > and the answer is more than 256 you are scanning at to high a resolution
> and
> > wasting disk space. If the number is UNDER 256 you have not scanned at a
> > high enough resolution and there is not enough DATA in the image.
> >
> > OK Too complicated.... here is how I do it. Take the LPI of the printer.
> > (Epson type printers = approx 150 LPI) and times that by 1.5 which gives
> you
> > 225. Set the scanner to 225DPI and scan away.
> >
> > PHEW! I think thats it. I hope I answered more questions then I created.
> > Have fun and BUY THAT PHOTOSHOP book its worth the money and your images
> > will love you. And NO I didnt write it.
> >
> > Ed
> >
> >
> > > ----------
> > > From: Bill Glickman
> > > Reply To: panorama-l@xxxxxxxxxxxxxxxxx
> > > Sent: Monday, August 7, 2000 5:53 PM
> > > To: panorama-l@xxxxxxxxxxxxxxxxx
> > > Subject: Re: LS-2000 help
> > >
> > > Ed
> > >
> > >      Hope you don't mind a few of us tapping into your expertise!  :-)
> I
> > > use a Howtek 8000 dpi drum scanner with Trident 4.0 software.  A few
> > > issues
> > > your raised....
> > >
> > > > Ok just a few guidlines for better scans
> > > >
> > > > 1. Turn off sharpening
> > > > Do that in photoshop during color correction and use SPARINGLY.
> > >
> > >       Is this true for drum scanners also?  The images look a bit weak
> > > with
> > > out some USM used.  I try to use low to moderate, but never high.  Is
> this
> > > correct?
> > >
> > > > 2. Figure out what the FINAL size of the scan and scan that size.
> > > > (magnification %)
> > > > For example If you have a 4X5 and you wanna make an 8X10 Scan it at
> > > > 200% not at 1200 DPI.....
> > > > DO NOT!!! I repeat DO NOT!!!  scan at the Max resolution of the
> > > > scanner and then scale the photo up. That makes the WORST possible
> scan
> > > +
> > > > Its a waste of HD space. Your scans should rarely pass 250 dpi. (If
> you
> > > > wanna know why read the book)
> > >
> > >            What exactly do you mean by scaling up?  If I want to scan
> an
> > > image and print at different sizes, say 11x14, 20x24 and 40x48, are
> you
> > > saying that if I scan at the 40x48 and then print at 11x14 it will be
> an
> > > inferior scan vs. if I scan it once for each size print output?  If
> so,
> > > that
> > > is very fascinating and not widely known.  Possibly I misunderstood
> what
> > > you
> > > were getting at.
> > >
> > > Thanks Ed
> > > Regards
> > > Bill G
> > >
> > >
> 
>