info - Cross Processing

Hello.
I 'd like to know a little more about cross processing for c41 films in E6
chemicals.
Which kind of negative film could be more suitable than another one for this
process?
Do I have to correct EV for cross developing?
How can a cross-processed film can come out?
Are these films much different from "normal" slides?
If yes, in which terms?

Many thanks in advance
--�
il Clod!

ilClod skrev i
...
Hello.
I 'd like to know a little more about cross processing for c41 films in E6
chemicals.
Which kind of negative film could be more suitable than another one for
this
process?
- Almost any standard film, but the combination between over/underexposure,
lab and film each gives a different result on color and contrast
Do I have to correct EV for cross developing?
- try and miss - there is no "correct" exposure
How can a cross-processed film can come out?
- different colors, strong blues, green cast - almost endless variations, as
mentioned above
Are these films much different from "normal" slides?
- no, but color and contrast is...
If yes, in which terms?
- color casts and changed, often higher contrasts. It is also possible to do
this the other way around - processing E& films i C41 - and another range of
effects.

Many thanks in advance
--�
il Clod!

Gordon Moat wrote:
[cut]
Experiment.

Ciao!

Well, I think I don't have clear ideas about this, but that's a start :-)
If you (all) know about some links or books where I can find more infos,
that would be a great hint

Bye

--�
il Clod!
---------------
"I don't mind eating if it's possible to make a martini sandwich."
-- Hawkeye Pierce

ilClod wrote:

Hello.
I 'd like to know a little more about cross processing for c41 films in E6
chemicals.
Which kind of negative film could be more suitable than another one for this
process?

Hard to tell, since the results vary quite a bit. Also, there are few examples
published.


Do I have to correct EV for cross developing?

I have done a bit of this cross processing, though across a limited range of
films. In general, I have found that two stops extra exposure is needed. An
example from Portra 400VC in E-6, was that I needed to set the camera to ISO
100, and the lab processed the film as ISO 400 E-6 film.


How can a cross-processed film can come out?

Usually a bit more contrasty, and sometimes a bit more blue. Often some odd
false colour palettes will appear in the final image. The images might look a
little normal, but something will make them seem alien.


Are these films much different from "normal" slides?

The thickness seems to be different, and there is a colour cast from the film
base. The colour cast can be from orange to greenish in colour, and will be
noticeable in clear areas.


If yes, in which terms?

Generally muted colours sometimes, and an overall colour cast are the most
apparent. However, not all films respond the same to cross processing.



Many thanks in advance
--*
il Clod!

The best I can suggest is to experiment with one film. Shoot the first roll and
bracket many different types of shots up to three stops extra exposure (try 1/2
stop changes). Take notes, and have that first roll developed, but not cut, nor
mounted. Try using a warm up, or light orange filter, and see what effects it
gives. Experiment.

Ciao!

Gordon Moat
Alliance Graphique Studio
http://www.allgstudio.com

[ilClod wrote in rec.photo.film+labs]
I 'd like to know a little more about cross processing for c41 films in E6
chemicals.

Cross-processing is my favourite technique for producing eye-catching images.
There's lots of inspiration as well -- my current favourite photographer
is called Annabel Williams, and she uses the technique a lot, even in
commercial portraiture work to great effect.

Her particular cross-processing mix-and match is Provia 400 in colour
negative chemistry, although the only advice anyone can give you with
regard to this effect is experiment lots and lots.

I've put some very hastilly cropped and compressed images online which are
colour negative film - e6 cross-processed - which is my preferred
'direction' to cross process in. Because you're going from a low-contrast
film, it gives more muted effects than slidefilm-e6, but still brings
some wacky results..

Sadly, they were taken about six years ago, so I don't have data for them.


High key lighting works well :
http://www.cyccom.com/andy/temp/cp-1.jpg
http://www.cyccom.com/andy/temp/cp-2.jpg
(the second is quite overexposed - I'll come onto that later)

You tend to get an insane colour cast :
http://www.cyccom.com/andy/temp/cp-3.jpg

... although every film reacts entirely differently. Hint: what else
were you planning to do with your near-to-date film stocks ? :-)


Which kind of negative film could be more suitable than another one for this
process?

This is down to preference -- you might like your effect to be more subtle,
or you might want a pronounced contrast-shift and colour cast. The
fun is in the experimenting though.

Do I have to correct EV for cross developing?

There isn't really a 'correct' EV, but you will need to bracket your
exposure widely to give you a range of images to choose from. If
you overexpose your film two stops and develop for the regular speed
of the film, you'll get 'medium' results in most cases, but if you
have a good idea, or are practicing, try overexposing more for high
key subjects, and underexposing to see what that does to colour.

Slide film - C41 will NOT give you the same exposure lattitude you
would expect from colour reversal film.

How can a cross-processed film can come out?

Ooh, I've just found some scans from negatives which have been started
life on slide film (i.e. colour transparancy - c41) which is the
'direction' you were asking about .. these were took in 1996, but
I distinctly remember using Kodak film for this shoot - Elitechrome?

http://www.cyccom.com/andy/temp/cp-4.jpg
http://www.cyccom.com/andy/temp/cp-5.jpg
http://www.cyccom.com/andy/temp/cp-6.jpg

Notice that with this combination, the cast is less pronounced and
contrast is stronger. I like the colour the sky went in cp-6.jpg

Are these films much different from "normal" slides?
If yes, in which terms?

With any luck this wont have answered your questions, it'll have
given you even more to think about -- the only way you'll answer
the questions is to have a play. This Summer I might make it a
project to try out cross-processing techniques and document the
results.

Please have a play and show us your results !



--
regards, Andy Davidson

Andy Davidson wrote:

Please have a play and show us your results !

I surely will. Maybe not tomorrow morning, but I will :-)))
Thanks a lot.

--�
il Clod!