Question About Printing With Ortho Film?

[analog65]

I am about to try some Ortho film and I started thinking about controlling contrast on the print.

It is my understanding that I will need to control contrast through development vs. using variable contrast filters.

Is my understanding correct?

If so, do I need to print on a graded paper or what happens if I print on a variable contrast paper?

 

[Luckless]

Are you printing onto the film? Or are you making a print on regular variable contrast paper?

 

[Adrian Bacon]

I am about to try some Ortho film and I started thinking about controlling contrast on the print.

It is my understanding that I will need to control contrast through development vs. using variable contrast filters.

Is my understanding correct?

If so, do I need to print on a graded paper or what happens if I print on a variable contrast paper?

Are you taking a picture with the ortho film, or treating the ortho film like paper?

If you're treating ortho film like paper, then yes, you control the contrast through development as it's orthochromatic.

If you're taking a picture with the ortho film to print it onto paper, then it's two step: first you need to control the contrast on the ortho film through development so that it is pictorially within a useful contrast range for printing onto paper, then you can just do a standard variable contrast print onto VC paper like you would with any other negative.

 

[Doremus Scudder]

You control the contrast range on the ortho negative by development and the use of filters when taking (green, yellow). It is the film that is "ortho" and not sensitive to red light. Once you've developed the negative, it should be treated just like any other negative when printing.

The contrast of the printing paper is independent. You control the contrast of VC papers with contrast filters or other filtration (e.g., a color head). Graded papers come in different contrasts, but are getting pretty rare these days. An ortho neg can be printed on any kind of printing paper.

If you are trying to make an internegative, you control the contrast of the interneg itself by development. If you are reproducing a color original onto the interneg, you could use regular B&W contrast filters (like you'd use when exposing a negative in-camera), but with ortho film, only blue, green and, sometimes, yellow filters are effective. Red and orange filters just remove the light that the film is sensitive to and you'll end up with long exposures and skewed tonalities. For black-and-white originals, just control contrast by development.

Film and paper are separate things.

Doremus

 

[analog65]

Hi, in this case, I will be loading the Ortho negative into the enlarger and exposing it on variable contrast paper.

Are you printing onto the film? Or are you making a print on regular variable contrast paper?

 

[analog65]

Thank you. That is what I needed to know. I just wasn't 100% sure of myself, so thank you for clearing this up. Much appreciated.

You control the contrast range on the ortho negative by development and the use of filters when taking (green, yellow). It is the film that is "ortho" and not sensitive to red light. Once you've developed the negative, it should be treated just like any other negative when printing.

The contrast of the printing paper is independent. You control the contrast of VC papers with contrast filters or other filtration (e.g., a color head). Graded papers come in different contrasts, but are getting pretty rare these days. An ortho neg can be printed on any kind of printing paper.

If you are trying to make an internegative, you control the contrast of the interneg itself by development. If you are reproducing a color original onto the interneg, you could use regular B&W contrast filters (like you'd use when exposing a negative in-camera), but with ortho film, only blue, green and, sometimes, yellow filters are effective. Red and orange filters just remove the light that the film is sensitive to and you'll end up with long exposures and skewed tonalities. For black-and-white originals, just control contrast by development.

Film and paper are separate things.

Doremus