Color Paper Developed in B&W Developer for Paper Neg?

Has anyone had experience exposing color photographic paper in-camera and developing it in regular b&w developer to produce a b&w paper neg? I'm not even sure if it can be done but I felt like it was worth asking. Thank you.

I've done a lot of "reversal RA-4" prints from color slides. In this process, the first step is a BW developer and then I expose the paper to light, so this is actually exactly what you are asking, just that after the exposure a color developer is used, but I always see the BW negative there before doing that.

So yes, BW developer will work on RA-4 paper and will produce a nice B&W negative. But the Dmax is not very high compared to BW papers, so expect lower contrast. As an extra benefit, you can create a color positive image afterwards if you want.

In this process, the first step is a BW developer and then I expose the paper to light, so this is actually exactly what you are asking, just that after the exposure a color developer is used, but I always see the BW negative there before doing that.

Click to expand...

This is unclear. Can you explain further. Are you saying that you first develop the unexposed paper an b&w developer and then expose it and then develop it again in color developer? You lost me with that. I'm very interested in what you've done but I need a better explanation. Thanks for your help and looking forward to more info.

Francesco, just to make things more interesting, check out this print I did last century!

(there was a url link here which no longer exists)

Mick.

Search apug for "reversal ra-4". There is info about both direct positive and printing from slides on ra-4 paper.

Fragomeni said:

This is unclear. Can you explain further. Are you saying that you first develop the unexposed paper an b&w developer and then expose it and then develop it again in color developer? You lost me with that. I'm very interested in what you've done but I need a better explanation. Thanks for your help and looking forward to more info.

Click to expand...

Please see (there was a url link here which no longer exists) for detailed description .

Francesco, just to make things more interesting, check out this print I did last century!

(there was a url link here which no longer exists)

Click to expand...

Mick, very cool! I can only imagine the looks on the audience's faces!

Please see (there was a url link here which no longer exists) for detailed description .

Click to expand...

I see. Thanks for the link. This looks very interesting in itself!

I'll have to grab some color paper sometime soon and see what kind of B&W neg it produces as an in-camera neg developed in B&W developer. I've decided that I have pretty much two choices for panchromatic paper negatives; color paper developed in B&W chemistry as discussed here and the Ilford Ilfospeed RC Digital paper that is panchromatic B&W paper designed for some type of digital printing. Thanks all for your help.

Mick I had a look at your link and saw that someone had asked for more details. Good thinking on that person's part I said to myself then noticed it was me!

I have never had the chance to try it out but in the last few days a friend has asked me if I can do anything with some old and thin colour negs.

I have been able to follow your explanation but I note that modern RA4 chems seem to be a combined blix. I have the Kodak kit whichs uses blix, I think, so can your process still work without separate bleach and fix ?

Finally does your process work at room temp(say 18-22/24C) or does it have to be at 35C( equivalent of 95F)?

Thanks

pentaxuser

All of these processes will work at 20 deg C.

If you want color, just remember to use the RA-RT developer replenisher with no starter.

PE