Complete Guide to 70mm Film

[MCB18]

How was the film?

I’ll test it at some point, don’t have color chems myself so it’ll have to be sent off

 

[MCB18]

And it’s here! Let’s hope my gamble pays off!

Apparently, this stuff displayed a turboelectric effect when you slit it. That was rather startling, from my experiences with this affects with tape, I don’t think it should affect the role too much, but it was definitely startling.

 

[pcameau]

Apparently, this stuff displayed a turboelectric effect when you slit it. That was rather startling, from my experiences with this affects with tape, I don’t think it should affect the role too much, but it was definitely startling.

What did you slit it into?

 

[MCB18]

What did you slit it into?

A shirt roll of 120. At the moment I don’t have a spiral for shirt lengths of 70mm, so this is how I can test film.

I know that someone on here offered me a metal 116/616 spiral at some point, but for the life of me, I cannot figure out who it was.

 

[Disconnekt]

A shirt roll of 120. At the moment I don’t have a spiral for shirt lengths of 70mm, so this is how I can test film.

I know that someone on here offered me a metal 116/616 spiral at some point, but for the life of me, I cannot figure out who it was.

I have 2 that I dont need, one plain spool & one still has the backing paper & film (its a Ansco Plenachrome film, the films been exposed on it though).

 

[MCB18]

I have 2 that I dont need, one plain spool & one still has the backing paper & film (its a Ansco Plenachrome film, the films been exposed on it though).

Nah not the film spool, the development spiral

 

[Disconnekt]

Oh ok, misread it & thought it said spool


There's a seller on etsy (located in Utah) that has 3d printed reels, one of them is an adjustable one for 616/122 film:

https://www.etsy.com/listing/4357797081/pa-616122-multi-format-film-dev-reel?ref=buy_box_elp&external=1&ga_view_type=gallery&ga_search_type=all

 

[MCB18]

Oh ok, misread it & thought it said spool


There's a seller on etsy (located in Utah) that has 3d printed reels, one of them is an adjustable one for 616/122 film:

https://www.etsy.com/listing/4357797081/pa-616122-multi-format-film-dev-reel?ref=buy_box_elp&external=1&ga_view_type=gallery&ga_search_type=all

Oh, I know, I’ve talked to them before, and they’ve even posted on this particular thread (although I think his post was deleted because he was advertising his products outside of the classifieds). I am not looking for this particular solution. I do have a Patterson tank, but I would much rather load it into a stainless steel tank since it uses much less chemistry, and in my opinion is nicer to process with.

If I had thought about it, I would have made a model of one that can fit in my stainless steel tank and had it printed at school, but unfortunately, I did not think about it until just now. And I am done with school.

 

[pcameau]

Oh, I know, I’ve talked to them before, and they’ve even posted on this particular thread (although I think his post was deleted because he was advertising his products outside of the classifieds). I am not looking for this particular solution. I do have a Patterson tank, but I would much rather load it into a stainless steel tank since it uses much less chemistry, and in my opinion is nicer to process with.

If I had thought about it, I would have made a model of one that can fit in my stainless steel tank and had it printed at school, but unfortunately, I did not think about it until just now. And I am done with school.

Nikon tanks use less chemistry? Please do tell.
How long is a shirt length… 12” ?

 

[Dr. no]

And I am done with school.

Congratulations! You will certainly miss other aspects of studentdom...

If you still have it, I can run it next week (70 or 120) when I develop some of the 65 you sent me. I now have all the widths (but not longer than 220 at the moment).

How long is a shirt length… 12” ?

If you get it from Temu, order a size ot two larger than usual...

I think "Nikor" tanks, and they use about 80% of what Patterson does. My chart is taped up in the offsite darkroom.

 

[MCB18]

Nikon tanks use less chemistry? Please do tell.
How long is a shirt length… 12” ?

Metal (Nikkor) tanks use something like 400ml vs the 600ml for a Paterson tank when processing 120. And a “shirt length” is a typo, I meant “short length”, about 18” or half a roll of 120.

Congratulations! You will certainly miss other aspects of studentdom...

Guess I should clarify, I’m done with this semester (and my associates in general and civil engineering, yay!). Still have some student in to do yet.

If you still have it, I can run it next week (70 or 120) when I develop some of the 65 you sent me. I now have all the widths (but not longer than 220 at the moment).

You have a 3D printer? I might hit you up on that actually…

 

[Dr. no]

No printer...but various "adjusted" tanks/reels for these.

 

[ChrisGalway]

Metal (Nikkor) tanks use something like 400ml vs the 600ml for a Paterson tank when processing 120. And a “shirt length” is a typo, I meant “short length”, about 18” or half a roll of 120.

....

The Paterson tank (Series 4) uses 500ml for 120 film.

 

[MCB18]

No printer...but various "adjusted" tanks/reels for these.

Ah. I might make up a model for it regardless and see if I can get someone on here to 3D print it for me.

The Paterson tank (Series 4) uses 500ml for 120 film.

I just looked, and this is correct. Although the point still stands, it does use less chemistry. It’s also a lot less bulky and I like using it more, so there’s that.

 

[MattKing]

It is important to differentiate between the old Paterson System 4 tanks, and the current ones - The Super System 4 tanks - which were introduced ~ 37 years ago
They use the same reels, and the tube cores are designed to fit both old and new reels, but the recommended fill levels may differ.

 

[pcameau]

Congratulations! You will certainly miss other aspects of studentdom...

If you still have it, I can run it next week (70 or 120) when I develop some of the 65 you sent me. I now have all the widths (but not longer than 220 at the moment).



If you get it from Temu, order a size ot two larger than usual...

I think "Nikor" tanks, and they use about 80% of what Patterson does. My chart is taped up in the offsite darkroom.

Oh wow. That’s efficient.

 

[IAmaral]

Just bought 2 cans of Agfa N400!

The listing had a test image and it looks pretty good, confirmed cold stored the entire time. 50 feet is going to a friend, and I’ll probably cut some 120/220. I’ll keep a couple of 15’ cassettes for sure though.

The seller has a lot of cans available and from my own experience AGFA, even expired, can deliver good results if properly stored. Negotiated a lower price and picked 8... Its hard to find 70mm color negative at this price... There's also someone selling a lot of 70mm FUJI duplicating film.

 

[blee1996]

The seller has a lot of cans available and from my own experience AGFA, even expired, can deliver good results if properly stored. Negotiated a lower price and picked 8... Its hard to find 70mm color negative at this price... There's also someone selling a lot of 70mm FUJI duplicating film.

Any experience with the Fuji CDU film?

 

[spookyphoto]

Here is a nice camera using 70mm film

SR-71 Cameras

Operational Objective Camera (OOC) Manufacture: ITEK. The OOC was made in the Boston division of ITEK, replaced by the OBC. ITEK was originally an Italian manufacturer of eyeglasses and frames. The OOCs were panoramic cameras with a 13 inch focal length using 70 mm wide film. Both Right and...

www.thesr71blackbird.com

 

[spookyphoto]

Nice article

History | Complete Guide to 70mm Film

A Complete Guide to 70mm Film

shoot70mm.com

 

[IAmaral]

Any experience with the Fuji CDU film?

Never tried it. Original process is E-6, but will probably cross process. A lot of color shift is expected. Purely experimental.