Photo Retouching - - Mimicking Cross Processing Effect

jasosmith · #1 10-12-2005, 07:07 PM

Does anyone have any techniques for mimicking the effect that you get from processing E6 Slide Film in C41 Chemicals. I have had a play with increasing contrast, and saturating colours but cant seem to get it right. Are there particular Channels that you would work on the get the effect.

Panpan · #2 10-12-2005, 08:23 PM

Here is a free action from Shan Canfield that does crossprocessing. Noise to Signal reviews and comments it.

I found it with a Google search on "photoshop cross-processing". There is a lot more info there.

Pierre

gmitchel · #3 10-29-2005, 07:54 PM

I have an action set that mimicks both C41-E6 and E6-C41 effects with lots of optional tints, too.

http://www.thelightsrightstudio.com/...Processing.htm

Enjoy!

Cheers,

Mitch

Panpan · #4 10-29-2005, 08:39 PM

Thank you for this action, Mitch.

I was working on this effect in another current thread. I used your C41-E6 (Green) to achieve it more easily than there. The tweakable adustment layers were key to get the result I wanted.

Pierre

gmitchel · #5 10-29-2005, 11:26 PM

Nice result.

I tried to make the actions as flexible as I could.

I used solid fill adjustment layers rather than photo filter adjustment layers to keep the actions compatible with PS7 and earlier.

You can adjust layer opacity. You can adjust the fill color. You can adjust the Blend If settings to affect where the tint is applied.

(The cross-processing effects in Photokit Color Effects are fewer and you can only adjust layer opacity. Plus they really bloat files with their pixel layers.)

Have fun with the actions. You're off to a great start with your sample.

Cheers,

Mitch

jasosmith · #6 10-30-2005, 01:45 AM

[font=Arial]I accidentally stumpled accross this in Photoshop and think it looks pretty close to the effect gained by Cross Processing Slide Film.
I took the original colour image and added a "Gradient Map" adjustment layer. The gradient was set from black to a copper/brown colour ( R 235, G 190, B 119). I then set the layer effect to Overlay. I then duplicated that layer for a stronger effect. You can adjust the opacity of both layers to suit your taste. Let me know what you think. The "Hue" layer effect can also produce nice effects here.

PS - I also used a mask and gradient to add the stormy effect to the sky.

Panpan · #7 10-30-2005, 07:54 AM

It's as if they are walking in a painting.

This is a really cool (and wise) couple to want these effects in their wedding album!

Pierre

Kraellin · #8 10-30-2005, 08:21 AM

Quote:

Does anyone have any techniques for mimicking the effect that you get from processing E6 Slide Film in C41 Chemicals.

ok, i'm going to risk my sanity here and ask. what are you guys talking about? i get that E6 must be a film type and that perhaps C41 chemicals are a batch of chemicals used to process a certain film type and that by using chemicals to process one film type may not be the same as for all film types and that by using a 'wrong' chemical type you could get a different end result. but for those of us who dont know what these films look like and what the various chemicals do in processing and how they look in end results, i, at least, am lost here. some examples of the films done 'right' and done 'wrong' might help give us some idea of what it is you're looking for.

now, it's a bit moot for me, since being a psp user i cant use ps actions, but there are always filters and plugins and so on that i might be able to help with if i knew what the effect is you all are going for.

then again, it would seem you're getting where you want to go without my help. still, it would be nice to have some idea of what you guys are talking about

Craig

Panpan · #9 10-30-2005, 08:45 AM

Here is the Wikipedia definition. In particular, follow the C41 link.

So color negative film by the C41 chemical process gives normal color negatives. Color transparency film by the E6 chemical process gives normal color transparencies.

I think those are Kodak's names originally.

Pierre

Panpan · #10 10-30-2005, 09:02 AM

Here are some examples of chemical cross-processing.

Pierre

Cassidy · #11 10-30-2005, 09:19 AM

Thanks, I think Pierre!

Kraellin · #12 10-30-2005, 09:51 AM

pierre,

thank you. that does help and i sort of get the idea now. i've a couple more newbie photography questions if you're willing. as an amateur photographer, i never shot with slide film. heck, i'm not even sure back then i knew there was such a thing as slide specific film. had i wanted slides i most probably would have taken the shots in normal film and had it processed into slides. and you mention 'color transparency film', which i assume is primarily used to make color transparencies for overhead projectors or some such. so why do they call it 'color reversal film' when you're talking about slides? a slide comes out as a positive when processed, so i assume it had to be a negative first. so, what's 'reversed' about it? and ok, it's a transparency, so that part is reversed. is that it? is that why they call it color reversal?

obviously, i've got some confusions here. any help to straighten me out would be appreciated.

oh, and i can now contribute a tiny bit to the original topic of this thread. you can do some very interesting techniques with 'curves'. and i think this might fit with what you're talking about here. just reverse your settings in various channels from what you'd normally do. i did a little experimenting with this a while back and rather than making a gentle sloping curve or something along those lines, do a sine wave type with lots of peaks and valleys. you can really get some of those 'color processing' effects that way.

Craig

Panpan · #13 10-31-2005, 07:42 AM

Craig,
I don't know much about the details of slide processing, but I looked it up for you. A slide starts as a negative image. A later step reverses that into a positive. Thus the name.

Pierre

Cassidy · #14 10-31-2005, 09:07 AM

Quote:

Originally Posted by Panpan

Craig,
I don't know much about the details of slide processing, but I looked it up for you. A slide starts as a negative image. A later step reverses that into a positive. Thus the name.

Pierre

Having a negative scanner, it definitelu scans i positive mode

Panpan · #15 10-31-2005, 12:42 PM

Quote:

Originally Posted by Cassidy

Having a negative scanner, it definitelu scans i positive mode

Yes, the end result is a positive image. However, within the chemical process there are some early steps where the image is a negative.

Pierre