On Tue, Mar 05, 2002 at 04:44:01AM -0800, George L Smyth wrote:
Date: Tue, 05 Mar 2002 04:44:01 -0800 (PST)
From: George L Smyth glsm...@yahoo.com
Subject: Re: [pinhole-discussion] umm (ortho-litho development)
To: pinhole-discussion@p at ???
Gord -
It also probably has a fair amount
Gord -
It also probably has a fair amount to do with the developer. Many developers
of this type will result in a lessened film speed. It's just the cost of doing
business.
Cheers -
george
--- Gordon J. Holtslander hol...@duke.usask.ca wrote:
Hi:
It seems that rating the film at 1
Hi:
It seems that rating the film at 1 ASA compensates for reciprocity. I'm
not sure of the F-stop of the 12x18- its not my camera. We usually get a
good estimate of the pinhole diamter using a loup and a fine ruler
graduated in .5 mm From that we calculate the f-stop based on the focal
I use LC-1 and ortho film too. Its very good. However it is slow. An
ASA of 1. I've used a
12 X 18 camera. It ended up having an f stop in the range 0f 300. This
translates to an
exposure of an hour on a bright sunny day for one picture.
How does that work? For a sunny day exposure with
From: jmm1...@aol.com
Reply-To: pinhole-discussion@p at ???
To: pinhole-discussion@p at ???
Subject: Re: [pinhole-discussion] umm (ortho-litho development)
Date: Thu, 21 Feb 2002 23:06:47 EST
Use Google and look for Soemarko's LC-1. It'd designed to yield continuous
tones from Ortho Litho
Hi:
I've used LC-1 its great The address is
http://members.aol.com/fotodave/Articles/LC-1.html
The formula is:
Soemarko LC-1: Stock A
water 750 ml
metol 3.0 gr.
sodium sulfite 60.0 gr
hydroquinone 3.0 gr
cold water to make 1.0 liter
Use Google and look for Soemarko's LC-1. It'd designed to yield continuous
tones from Ortho Litho film.
John
If you use lith developer, you will get only blacks and whites. If you use
dektol1:2 you will get some shades of grey. It's easy to try other film or
paper developers since you can develop by inspection, just deelop until it
stops changing. I think you'll get more pleasing results using Dektol.
--- R Duarte ra...@rahji.com wrote:
ummm, sorry.. i also wanted to ask if anyone has sort of a summary of
developing techniques for that ortho-litho stuff (eg which chemicals in
which dilutions). i wish there was an easier way to search the archives.
:-/
I have used half-tone film a fair
Hi:
Depends on what you want to do. One of the standard kodak ortho
developers in called fineline - mixed as two stock solutions which are
combined prior to development. This gives a high contrast negative
The developer should give some info on effective film speeds, depends on
the light
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