Eliminating orange color from C-41 cross processed in E-6 using color filters

[Unbuiltbread]

Recently saw this post of someone taking a yellowish filter to cross process the new Lucky color film in E-6, without any of the tint that usually happens when you cross process c-41. Thought others might be interested.

Wonder if it can be done with other films. I’d think that you’d just need a filter with the same color as the base of the film, but Lucky 200 has a more normal orange color, not yellow, so clearly just throwing on an orange filter doesn’t work. Could be fun to mess with

 

[Yezishu]

It's probably some kind of commercially yellow-green filter; homemade optical glass don't exist today.

A similar example is Kodak Aerocolor IV 2460. I tried E6 developing with it but not very successful. Later, others found a better method to adjust the color cast. Using (ЖЗ-1.4x or ЖЗС-5 or YG-1.4x, USSR)(LB9, chinese)(VB10, Schott) filter, and then a Wratten 85C for color temperature, it could be processed with regular E6, and the results weren't too bad.

Besides base color(masking), another factor is the impact of the E6 process. C41 film is not designed for E6 development conditions (which involve a much stronger first developer and CD3 in second developer), and this often results in some histogram overlap or requires adjustments to the RGB curve shape. While these issues are relatively easy to scan nagetive and correct digitally, they are very difficult to address using purely optical methods for reversal films. They are lucky to find a fliter close to their need enough.

 

[koraks]

That's pretty neat. I guess if you balance the color so that it cancels out the orange mask, you can get fairly close to a neutral balance. The end result looks quite nice; dmax is a little low, but that's unsurprising with a CN film which just isn't built for high density. The colors look pretty OK to me. I suspect the slides in real life will look a little muted because the orange mask is still there, with a complementary color cast overlayed on top of it, so effectively this adds neutral density all across the image.

Btw, I have some trouble opening the Instagram reel; it wouldn't load on my phone because apparently I had to be signed in and on the regular computer it loaded once, but I can't open it anymore now. Perhaps that's part of the reason why there are so few responses; I guess more people have had trouble seeing what this is about.

 

[Rudeofus]

if you look at the density of an orange mask, I believe it is D ~ 1 in the blue/yellow channel. "look a little muted" may be an understatement. Looking at the Lucky 200 shots in this reel makes me wonder, whether it has orange mask. The images shown here seem to suggest one, but the pics on the light table shown in that insta reel suggests otherwise.

 

[koraks]

. Looking at the Lucky 200 shots in this reel makes me wonder, whether it has orange mask.

On the images that surfaced last summer, there definitely was a normal orange mask: https://www.photrio.com/forum/threads/lucky-color-film-first-look.214375/
@nograin_nogain can verify as he has compared the film side-by-side with Gold 200 so he can easily tell us whether or not there's a mask.

 

[nograin_nogain]

On the images that surfaced last summer, there definitely was a normal orange mask: https://www.photrio.com/forum/threads/lucky-color-film-first-look.214375/
@nograin_nogain can verify as he has compared the film side-by-side with Gold 200 so he can easily tell us whether or not there's a mask.

Yes, there definitly is a mask, when processed in C-41 at least. That said, I can't speak to what happens to it when processing it in E-6. Also, Lucky's mask is a bit more reddish than orange to my eyes. You can see some close-ups of the developed film here in the video I made comparing it to Gold 200 in 120