shooting some 1976 Ektachrome 7250T... predictions?
Posted 02 August 2007 - 09:33 AM
Also, how much density will the stock have lost, and would you rate it differently to get a better result than shooting straight at the 400asa mark?
love to hear your thoughts... I'll be running it through a Bolex H16 with 1960's Som Berthiot lenses.
Posted 02 August 2007 - 09:52 AM
I can only speak of still film here, as I am just beginning with 16mm, but I have shot some 4x5 inch sheet Ektachrome from the late 80s through the 90s (I think the oldest was from '86). My grandpa had the stuff in his studio, he gave most of to me a couple of years ago and I got the rest when he died last fall. The stock wasn't kept cool all the time, but ever since I had it, I kept it in the fridge. I have some slides here, unfortunately I can't scan them right now.
I was quite surprised with the results. Especially the newer stuff showed no noticeable color shift at all (maybe the lab corrected for that, although I did not tell them to).
It seemed that the older the stock, the more red and magenta it had. I was told that this is the normal response of Ektachrome reversal film to aging.
So assuming that the 70s Ektachrome ages the same way the newer stuff does I'd expect a minor to major magenta/red color shift in your shot. Maybe you could grade it out, but it might be a nice look if it fits the piece.
Posted 02 August 2007 - 12:31 PM
I shot some footage on 10 year old 5246 250D 35mm motion picture film. I rated it at 125 ASA,
I was suprised that there was little fogging.. The colors looked good. The film had been stored at room temperature for 7 years !!!!
Posted 02 August 2007 - 12:51 PM
But otherwise you really are guessing.
On top of that, VNF is obsolete, so while some labs still run the process, they may not do so regularly.
Posted 02 August 2007 - 05:49 PM
When planning to shoot very old, obsolete, or even current but obscure stocks from overseas, ALWAYS check that you can get your film processed before you shoot.
7250 is the VNF process - not widely available these days. And if you find a lab that will run it, they may not do so regularly (you can wait for up to a year!). If that is the case, then there is probably a steep minimum charge to cover their set-up costs and you obviously won't have a chance for testing as was suggested before.
If you have found a lab to do this, they may have an idea about the aging effect. Remember, any one individual on this list has seen their own work and maybe a bit more: find the right person in a lab, and they have seen everyone's work!
Posted 02 August 2007 - 07:08 PM
Posted 06 August 2007 - 07:50 AM
I personally would not invest in trying to use such old film.