From: Sandy King (sanking@clemson.edu)
Date: 10/16/03-06:15:43 PM Z
Larry wrote:
>The 1280 will do it. On a 0,55,55,0 spectral density negative made with no
>curve applied, and no black ink used, it hits 2.66 on my uv densitometer for
>the 100% patch, that's just with CMY. If I used black ink odds are I'd get a
>good bit more density than that. I dont know how this compares to the
>pigment inks.
But the issue in question is not whether one can get enough effective
UV printing density from the 1280 with spectral negatives for alt
processes. It is a given that you can. The issue as presented is
this. Is the Epson 1280 a better printer for printing digital
negatives because it's ink has greater density than that of the Epson
2200? As noted earlier, I really doubt the premise that you can get
more effective printing density with the Epson 1280 than with the
2200. My own testing indicates that pigmented inks block UV light
more effectively than the dye inks of printer like the 1280. And, as
indicated earlier, some of my digital negatives made with the
pigmented inks of the Epson 2000P have a maximum density of about log
3.6, which is really a huge increase over the density of log 2.6 you
cite for the spectral negatives with the 1280.
Sandy King
>
>My problem with it has been the color shifting as you proceed up the density
>scale and the uv density doing strange things as a result. The uv jumps
>happen right about 70%. You'll notice Dan's curves compress everything below
>70% and avoid this, which is fine because there is plenty of uv density
>available anyway. I'd sure like to be able to send all 256 steps to the
>printer though. But, as I've said before, I've seen some really nice prints
>with Dans system just as it is, compressed range and all.
>
>Larry
>
>
>----- Original Message -----
>From: "Sandy King" <sanking@CLEMSON.EDU>
>To: <alt-photo-process-l@sask.usask.ca>
>Sent: Thursday, October 16, 2003 12:10 PM
>Subject: Re: Digital cyanotype negs
>
>
>> Perry wrote:
>>
>>
>> >Well with the research that I've done I'd say that the 1280 is a better
>> >printer for printing digital negs because their ink has greater density.
>>
>>
>>
>> I wonder if you might share that research with us. I seriously doubt
>> that you can get as much density with the regular inks of the 1280 as
>> with the pigmented inks of the 2000P and 2200.
>> I have measured an actual UV printing density of over log 3.6 with
>> the pigmented inks of the Epson 2000P, and I am confident that you
>> could get as much density with the 2200. If anyone has been able to
>> get that kind of density with the 1280 the news sure missed me. My
>> understanding was that people were having to resort to spectral
>> negatives with the 1280 to get enough effective density range to
>> print with alt processes like pt/pd.
>>
>> Sandy King
>>
>>
>> >
>> >> From: Trevor Thomsen <secdev@mweb.co.zw>
>> >> Organization: Security Devices - Harare - Zimbabwe
>> >> Reply-To: alt-photo-process-l@skyway.usask.ca
>> >> Date: Thu, 16 Oct 2003 10:49:50 +0200
>> >> To: alt-photo-process-l@skyway.usask.ca
>> >> Subject: Re: Digital cyanotype negs
>> >>
>> >>
>> >> Hi,
>> >>
>> >> Thank you to everyone for sharing all this information on A-P-P.
>> >>
>> >> Is the Epson 2200 the best printer to buy for producing digital negs?
>I
>> >> have my doubts after reading all the messages recently.
>> >>
>> >> Please advise.
>> >>
>> >> Trevor Thomsen.
>> >> Zimbabwe.
>> >>
>> >>
>> >> ----- Original Message -----
>> >> From: "Perry" <perry@vivalarevolution.com>
>> >> To: <alt-photo-process-l@sask.usask.ca>
>> >> Sent: Wednesday, October 15, 2003 8:01 PM
>> >> Subject: Re: Digital cyanotype negs
>> >>
>> >>
>> >>> The 1280 uses different inks and they have more density, but It is
>> >> possible
>> >>> that using different colors would work. I'm going to give it a try.
>> >>>
>> >>>> From: shannon stoney <sstoney@pdq.net>
>> >>>> Reply-To: alt-photo-process-l@skyway.usask.ca
>> >>>> Date: Wed, 15 Oct 2003 07:05:15 -0500
>> >>>> To: alt-photo-process-l@skyway.usask.ca
>> >>>> Subject: Re: Digital cyanotype negs
> > >>>>
>> >>>>> I just recently started making digital negs for my cyanotypes on
>the
>> >> 2200
>> >>>>> and I haven't been able to build up enough density in the blacks to
>get
>> >> a
>> >>>>> good white in my prints. Anyone have any suggestions for me as to
>what
>> >> I
>> >>>>> could do to try and get denser blacks for better whites in my
>prints?
>> >>>>
>> >>>>
>> >>>> Don't know if Rocky is still on this list, but we saw some
>cyanotypes
>> >>>> he had made from digital negs and they looked great. His digital
>> >>>> negs were printed in orange rather than black on the 1280 I think.
>> >>>> Maybe if you tried orange? I think Dan calls these "spectral
>density"
>> >>>> negatives.
>> >>>>
>> >>>> --shannon
>> >>>>
>> >>>
>> >>>
>> >>
>>
>>
>> --
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