Color neg film use,s a different set of chemicals than B&W neg. film.
Technically, yes there is a difference. You can do a search on "cross-processing" color film as B&W. I have processed color(c-41) in B&W chemistry and you will get an image, but I was never happy with it. Other folks have had better luck with it. I just never pursued it further. JohnWAren't both of them developed by C-41 chemicals? Is there a difference between B&W C-41 and colour C-41 chemicals?
Chromogenic B&W is developed in C41 chemicals, there is only one film of this type available, Ilford XP2. It is designed to give monochrome images, but is processed in C41 chemicals. You processed color C41 film in inappropriate (standard B&W) chemicals, there is no such thing as "B&W C41 chemicals".Aren't both of them developed by C-41 chemicals? Is there a difference between B&W C-41 and colour C-41 chemicals?
Thank you, i suppose i acted without thinking,well anyway, thanks!Chromogenic B&W is developed in C41 chemicals, there is only one film of this type available, Ilford XP2. It is designed to give monochrome images, but is processed in C41 chemicals. You processed color C41 film in inappropriate (standard B&W) chemicals, there is no such thing as "B&W C41 chemicals".
I did search it. You are right, it was a serious mistake, anyhow that's how you'll learn i supposeTechnically, yes there is a difference. You can do a search on "cross-processing" color film as B&W. I have processed color(c-41) in B&W chemistry and you will get an image, but I was never happy with it. Other folks have had better luck with it. I just never pursued it further. JohnW
It's not something i would prefer eitherDoing what you did has never had any attractions for me but I can understand why in your circumstance you wanted to have a go. Plenty of people here appear to make a success of it. I don't think you should have had as bad an outcome as you did. Do a search on Photrio. There are plenty of threads on this. As a matter of fact there is one by David Lyga there right now.
pentaxuser
Yes, what John says here is worth a try, but don't expect miracles. It likely will be slightly better and slightly different than what you have now. Fun to experiment and you are really nothing out at this point. Let us know if you do try it. Good luck JohnWAll is not totally lost. You might be able to carefully put He film back on
Reels and soak the film and carefully barely agitate in potassium
ferricyanide and then refix and rewash... good luck!
Where can i find potassium ferricyanide though?Yes, what John says here is worth a try, but don't expect miracles. It likely will be slightly better and slightly different than what you have now. Fun to experiment and you are really nothing out at this point. Let us know if you do try it. Good luck JohnW
I dont think my local lab has any supply of potassim ferricyanide. I suppose i'll just let it go. Nevertheless i had no idea you could do that, thanks a lot anyhowyou can get it at a place that sells photo supplies .. what you want to do is buy a packet
or get one "special ordered" is called "farmers reducer" .. if they don't have it ...
find a place that sells bulkchemistry you can find it there .. or get a "kit"
for making classic cyanotypes and use the that .. its t he stuff that isn't green
from what i remember it is is a 35mm film canister of ferri and 1L of water ( if you don't have the farmers reducer kit )
fixer is regular strength for film .. use separately ..
if you have one of those rods to agitate your iflm in the tank use it
or take a coathanger (metal ) and straighten it out and make a butterfly at th e bottom
and put your film on that and raise and lower it slowely when you have it in the potassim ferricyanide solution
donn't do it much,its really active .. once you strip some of the darkness off you will need to refix it again
because it is now light sensitive .. if you ever get dicrotic fog on your film, this removes that too ..
good luck !
You're right. Well, mistakes happenMy suggestion is buy some black and white film and start over. You made a simple mistake, no big deal. Start getting beautiful black and white negatives.
Best Mike
Could be the case actually, i'll take care of it next time and make sure there is no light. Thanks!I develop colour film in black and white chemicals quite a lot, the results are usually fairly decent. As has been suggested try re-fixing the film for 10 - 15 minutes, that may resue something. However you say you may have had a little light leak, it takes very little light to destroy the negatives, perhaps that was a large part of the problem?
Actually when XP2 first came out there was a C41 type developer made especially for it by Ilford. It did not work with colour C41 except to create a B&W negative. It was claimed to give slightly sharper negatives but it didn't last long and was discontinued after a year or so..
You must realise, 1/125 of a second shutter speed is eight thousandths of a second? Your eye-brain interface can barely percieve that. If you see light in a "darkroom" it isn't. They call them "darkrooms" because they are DARK.Could be the case actually, i'll take care of it next time and make sure there is no light. Thanks!
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