Identifying Ektachrome "EH"

[Photoemulator]

I have a roll of 120 film we all know as Ektachrome, but the letters are "EH". There's no film speed or other markings that is helpful for me to figure out even if it's daylight or tungsten. Does anyone have old information about how Kodak designated their films? Like the codes found at https://125px.com/docs/techpubs/kodak/ppi668-2002_12.pdf

 

[MattKing]

Moved to the Color film sub-forum.
When you refer to "EH", is that on a box, on backing paper, or in the edge codes?
Also, I'll update thr thread title.

 

[cowanw]

Imported to Canada, I guess, Eh!

 

[AnselMortensen]

It's very old, process E3 or E4.
Ektachrome High Speed, early 1970's.

 

[Photoemulator]

I found a roll on ebay (https://www.ebay.com/itm/155873529712) and it's speed is ISO 160. I had no idea it was E3 or E4. Who can develop that roll? Oh Boy!

 

[MattKing]

E4 probably.
It is probably foggy and its colour would most likely be wonky.
Cross processing in 85F or cooler C41 chemicals might yield something. So might development in black and white chemicals. Don't try to have it developed in E6, because the higher temperature and lack of a pre-hardener would likely yield emulsion coming off the film.

 

[Photoemulator]

I like your idea to cross process it in c41 chemisty. I think I'll go through that route. I'll let y'all know the results.

 

[Tel]

I believe it’s daylight balanced. I used to do a lot of theatrical photography in the late 60s and 70s with a film called ET, for "Ektachrome Tungsten”. It was rated at ASA 160 but I routinely pushed it to 320 with good results. (Actually the lab pushed it—K&L was the name of it, I think.)