RE: CMYK vs RGB

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

Denis,

Scan any way you want..... I was trying to give the benefit of some of my
experience to Mr. Wong. I offered what I have learned and what works best
for me. If you choose to follow some other way to scan go ahead. My method
is based on years of experience and hundreds of thousands of scans. If you
choose to try what I said .... Fine! If you choose to ignore what I said
thats fine too. The proof is in the output. If you like the way your images
look stick with it,  you are doing OK. If you DONT like the way they look
try something else. I do my conversions (mode conversion and magnification)
during the scan.  I capture CMYK Data on the scanner  because it is
converting off the origional as the data is being captured, plus I have
control over the scanner conversion where I dont have same control over the
conversion in photoshop or to the printer. I scan to the FINAL size at the
same time to because that gives the correct image dimension for the smallest
file size.

Ed 


> ----------
> From: 	M. Denis Hill
> Reply To: 	panorama-l@xxxxxxxxxxxxxxxxx
> Sent: 	Wednesday, August 9, 2000 12:45 AM
> To: 	panorama-l@xxxxxxxxxxxxxxxxx
> Subject: 	RE: CMYK vs RGB
> 
> "If you can scan in CMYK thats even better."
> 
> "Hope I helped and didnt confuse"              [Denis: You did confuse.]
> 
> "What I was saying is that scanning in CMYK gives you a better
> representation ..."
> 
> Ed,
> 
> I have extracted what you said, twice. It must be confusing to anyone less
> knowledgeable than you about scanners. That's why I belabor the point.
> 
> Barring some recent development (please provide details if I'm wrong),
> scanners all scan in RGB. Is this not to be expected of a transmissive
> color
> process?
> 
> Any scanner that offers CMYK output is merely converting the RGB
> information
> to CMYK before you get the file.
> 
> Denis
> 
> > -----Original Message-----
> > From: Sokolowski, Ed [mailto:esokolowski@xxxxxxxxx]
> > Sent: Tuesday, August 08, 2000 6:21 AM
> > To: 'panorama-l@xxxxxxxxxxxxxxxxx'
> > Subject: RE: LS-2000 help
> >
> >
> > No I didnt say that What I was saying is that scanning in CMYK gives you
> a
> > better representation of what your final output will be like in
> > the scanner
> > software. ALSO it stops the OOOPS I forgots and printing RGB. What I was
> > getting at is Images being sent to CMYK Printers SHOULD be CMYK
> files....
> > Thats all.....
> >
> > > ----------
> > > From: 	M. Denis Hill
> > > Reply To: 	panorama-l@xxxxxxxxxxxxxxxxx
> > > Sent: 	Tuesday, August 8, 2000 12:13 AM
> > > To: 	panorama-l@xxxxxxxxxxxxxxxxx
> > > Subject: 	RE: LS-2000 help
> > >
> > > Ed,
> > >
> > > Do you mean that the on-the-fly RGB to CMYK conversion in
> > scanner firmware
> > > (or in the driver software) is better than Photoshop
> > conversion? Or have I
> > > missed something and there are scanners with CMYK PMTs?
> > >
> > > M. Denis Hill
> > > Area 360 Communications
> > > http://www.area360.com
> > > 360.678.8351
> > >
> > > Have you visited the discussion forums at
> > > http://www.colorfulcoupeville.com?
> > >
> > > > -----Original Message-----
> > > > From: Sokolowski, Ed [mailto:esokolowski@xxxxxxxxx]
> > > > Sent: Monday, August 07, 2000 1:04 PM
> > > > To: 'panorama-l@xxxxxxxxxxxxxxxxx'
> > > > Subject: RE: LS-2000 help
> > > >
> > > >
> > > > Harold,
> > > >
> > > > If you are trying to set the scanner up so that one setting can
> > > > be used for
> > > > all your scans you are making yourself crazy. It can not be done.
> Each
> > > > negitive we scan,  just as each scene we photograph is
> > unique. Trying to
> > > > make the scanner "default" to some value that will give you perfect
> > > scans
> > > > just isnt happening. I think you found that out already.
> > > >
> > > > Do you have Photoshop? If not get it, If so get this book....
> > > >
> > > > http://www.amazon.com/exec/obidos/ASIN/0240515919/qid=965669645/sr
> > > > =1-7/002-6
> > > > 425206-4380854
> > > >
> > > > I am the Director of Graphic Production for a large cosmetics
> > > > company in NYC
> > > > and each one of my departments scan well over 1000 chromes a
> > month on 10
> > > > different types of scanners encluding the LS-2000  and I can tell
> you
> > > from
> > > > experience that 99% of all the work done to make these scans look
> good
> > > is
> > > > done in Photoshop. If you are serious about digital photography
> > > > Photoshop is
> > > > the ONLY tool to use.
> > > >
> > > > Ok just a few guidlines for better scans
> > > >
> > > > 1. Turn off sharpening
> > > > 	Do that in photoshop during color correction and use
> SPARINGLY.
> > > >
> > > > 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)
> > > >
> > > > 3. Use Auto Levels. Unless you REALLY know what you are doing and
> > > > know color
> > > > 	correction and are willing to spend GOBS of time testing
> your
> > > > particular scanner use Auto levels. This pretty much gaurentee's
> that
> > > you
> > > > will get a scan that has all the data you need in it for a good
> > > > final scan.
> > > >
> > > > 4. If you are scanning for the WEB. PLEASE scan at 72dpi only.
> > > > 300dpi scans
> > > > are just BIG
> > > > 	not better. Monitors can only reproduce 72dpi so PLEASE stay
> away
> > > > from the 300dpi settings. + Use image ready in photoshop 5.5
> > to further
> > > > reduce the size of your scans.
> > > >
> > > > These things will get you in the ballpark and all you will
> > have to do is
> > > > tweek your scan in photoshop and you will have a BEAUTIFUL Image
> > > > to print.
> > > >
> > > > One final thing.....
> > > >
> > > > If you are printing to an Epson Type Printer (CMYK not RGB)
> > > > Change the mode
> > > > of the pic to CMYK.
> > > > All (well most all) scanners default to RGB to scan photos. If
> > > > you can scan
> > > > in CMYK thats even better.
> > > >
> > > > Hope I helped and didnt confuse
> > > >
> > > > Ed.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > > ----------
> > > > > From: 	Harold Wong
> > > > > Reply To: 	panorama-l@xxxxxxxxxxxxxxxxx
> > > > > Sent: 	Tuesday, August 1, 2000 11:32 AM
> > > > > To: 	'panorama-l@xxxxxxxxxxxxxxxxx'
> > > > > Subject: 	LS-2000 help
> > > > >
> > > > > Can anybody offer me a few tips in using the Nikon LS-2000 for
> > > > scanning in
> > > > > 35mm shots for panoramic work on a Macintosh? Specifically,
> > I'm having
> > > > > difficult setting one exposure level and making it the
> > default for the
> > > > > rest of my photographs. Saving and recalling the "User Settings"
> > > doesn't
> > > > > seem to help as my other scans come out bad. I've also turned
> > > > off the two
> > > > > autoexposure features found in the Misc. preference panel. Thanks.
> > > > >
> > > > > Harold
> > > > >
> > > > >
> > > > >
> > >
> > >
> 
>