Ortho Films?

[sun of sand]

ya know what
I don't think I've bothered with HCA or washing them for any length of time and since Kodalith is a bit more mauve -or whatever color-
maybe that "dye" just isn't washing out

I have to develop a couple kodaliths from yesterday right now so I'll see

[Vaughn]

I was going to create my own thread earlier this morning but I may get my answer here

I bought some Kodalith
I tried a few sheets in Dektol around 1:9 and at ASA 3-5
It's coming along ok, I guess

Thing is
The negative comes out Brown&White as opposed to Black&White
Why?

I have noticed that litho film can be brownish if under-developed.

Vaughn

[maxbloom]

Or not encountered? From Google search for,
Valley Litho . Check out the process films
within the offset printing section. Dan

Thanks Dan, but I'm looking for plain old ortho, not ortho lith.

[sun of sand]

Really, Vaughn? I will remember that.


I just did my two Kodas from yesterday and fixed them for a longer period of time
about 3.5 and 5 minutes in rapid fixer
3.5 almost got rid of the brown ..kind of a light sepia instead of coffee/tea
5 minutes completely gone. Black&White!

Since lith film is so thin is a hardening fixer better to use? I have bottles of that waiting for a purpose in life

[Vaughn]

Really, Vaughn? I will remember that.

Well, that is the result when our students yank it out of the developer early because they see the highlights getting dense enough to use as radiation shields!

vaughn

[haryanto]

I've used FUJI Lith LO-N100 for my masking it's just great

[dancqu]

Thanks Dan, but I'm looking for plain old ortho,
not ortho lith.

The OP, I Quote; "Kodak Contrast (Process Ortho)".
My job years ago involved exposing a Process Ortho
film in a Process camera using a carbon arc light
source. The film was developed by inspection
using a Lith developer. No Lith without a Lith
developer. They may have 4x5. Dan

[maxbloom]

Kodak Contrast (Process Ortho) is not a lith film.

1) Kodak mentions nothing about it being a lith film in their technical data.
2) They do not even recommend the use of Kodalith developer for its development, whereas they do for Kodalith/Ektagraphic and Ultratec.
3) Lith films and papers have lith in the coating. Using a lith developer does not make the film lith.

Can it be developed using a lith developer? Sure, why not? Like I said, that doesn't make it a lith film.

[dancqu]

Lith films and papers have lith in the coating.
Using a lith developer does not make the film lith.

Can it be developed using a lith developer?
Sure, why not? Like I said, that doesn't
make it a lith film.

You are thinking of RA films, rapid access. Some can be
processed RA or A-B. RA films are developer incorporated.
Those that are not RA depend upon a lith developer. That
is my understanding. In recent years I've only produced
lith prints. Dan

[maxbloom]

All I'm saying is that Kodak specifically identifies only one other film as being identical to Kodalith, and that's Ektagraphic. Contrast and Kodalith are entirely different films. Recall all this talk about lith films having really thin bases? Contrast has a really thick base.

Given that they're two films of essentially the same speed, but 1) Contrast does not have the characteristic thin lith-style base, 2) They produce vastly different results in the same non-lith developers, and 3) Kodak does not recommend Kodalith as a developer for Contrast. I see no reason to conclude that it is a lith film.