Can you identify this film stock?

trythis · Oct 21, 2016

I have a bulk roller with a heavy lump of this in it. Any idea what it is? I plan to shoot a short roll at a wide EI range and develop in HC110 to test. Ok, and maybe a test in diafine since it is not time specific.

The picture shows both sides.

Thanks

AgX · Oct 21, 2016

It is cine camera or internegative film.
Which does not make you wiser at all...

trythis · Oct 21, 2016

AgX said:
It is cine camera or internegative film.
Which does not make you wiser at all...

Well, a little. Hopefully it responds to b&w developer

railwayman3 · Oct 21, 2016

It looks rather like some movie print film (B&W) which I had many years ago to print some B&W transparencies from negs.

Gerald C Koch · Oct 21, 2016

From the shape of the perforations it is cine stock. I could be fine grain positive stock or leader. They look very similar. Without trying to develop it you cannot really tell. Developing would reveal any edge markings. Does a small piece respond to a developer. If not then it is leader.

AgX · Oct 21, 2016

railwayman3 said:
It looks rather like some movie print film (B&W) which I had many years ago to print some B&W transparencies from negs.

Cine print film has a different kind of perforation.

Gerald C Koch · Oct 21, 2016

The BH1870 perforation is standard for negative and intermediate (interpositive / internegative) lab film.

https://en.wikipedia.org/wiki/Film_perforations

trythis · Oct 21, 2016

It does not seem to have an antihalation layer. I have some other film, litho I think, but irs a pale yellow.
I an going to develop tonight si we shall see. I will feel kinda stupid if its leader film and wonder why its in the daylight loader in the first place.

georgegrosu · Oct 22, 2016

The positive black and white is more light yellow.
I see here a little reddish.
In connection with negative perforation can tell you that I had from ORWO positive black and white with such perforation.
Kodak makes positive with negative perforation but to order.

George

trythis · Oct 22, 2016

Well this is a new one for me,
Its Plenachrome. Luckily it is Safety Film.

From the two minutes of research its a 125 ISO orthochromatic film by Ansco, but who knows if that is accurate.

The shots taken in the 25 to 50 EI range look pretty good, but its certainly fogged, a bit. Quite surprised at how decent the negatives are for unknown age, unknown storage conditions. Its worth shooting!

Ok, maybe not, this stuff is nowhere near flat after drying.

Can you identify this film stock?

Attachments

Privacy & Transparency

Privacy & Transparency