Ender100@aol.com
Date: 08/29/03-12:32:49 AM Z
Larry,
I'm not trying to be a pain in the ass, just trying to understand this....
Earlier you said that to get a printed 50% tone you would:
print using half the dots with 100% black ink (I'm assuming like the Epson
black ink)
while on the other hand you would
print 100% of the number of dots with 50% gray ink using quadtones to get a
printed 50% tone.
Following this, I was asking what would you use with quadtones to print a 51%
tone, if you used 100% of the dots of a 50% gray to print a 50% tone... how
many dots of 50% gray do you use to print a 51% tone? I think we ran out of
dots when we used 100% of them.
Or is it way too late for us to be discussing this?
By the way, I looked up the quadtones again produced by Lyson and MIS and the
sites I found still show they are to be used with the older Epson printers,
not something like the Epson 2200. I'm wondering if newer printers with their
variable dots and ultra teeny weeny picoliter dots might make this somewhat a
moot point... or, maybe you could just buy the black ink from their different
cold, neutral or warm tone set and use one of those as your black cartridge
and print with "black" ink only.
On the other hand, since I am about to go into serious sleep deprivation soon
anyway and will be totally unaware of what I am saying I will quickly add that
—a decent printer profile will pretty well give you a smooth ramp and a
fairly neutral gray scale using color inks. I just made a profile using MacBeth's
system for my Epson 2200 and am about to do the same for my Epson 10000.
With a well profiled printer using color inks to make a negative, maybe the very
slight magenta or green cast you might still get would have little if any
effect on the negative used for alt photo. Even if it did, your curve SHOULD
adjust for it anyway. Or if it is slightly green, just call it a pyro neg.
And instead of 4 inks to dither with quad blacks, with the 2200 and
ultrachromes, you get seven. That's a lot of dithering. ;)
Maybe there is someone out there successfully using quadtones to make
negatives and has done some comparisons and can shed some light on their superiority
if any. That would be interesting to hear about.
Mark Nelson
In a message dated 8/29/03 12:44:01 AM, larry.roohr@comcast.net writes:
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> 51
>
>
> ----- Original Message -----
>
> From:<A HREF="mailto:Ender100@aol.com"> Ender100@aol.com</A>
>
> To:<A HREF="mailto:alt-photo-process-l@sask.usask.ca"> alt-photo-process-l@sask.usask.ca</A>
>
> Sent: Thursday, August 28, 2003 11:28 PM
>
> Subject: Re: Archival qualities of Pictorico OHP film.
>
>
>
> Then how many dots would you use to print a 51% tone?
>
>
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