Complete Guide to 70mm Film

[film4eva]

I was wondering about that. I was thinking that it'd be difficult to fill and drain in close timeframes to balance out the amount of dwell time at two given, distant, points on the film.

I guess the other thing is for me to really decide if I even want to chase 70mm, or if 65mm could be my jam.

 

[MCB18]

I have found that you need a slow-working developer, as it takes a couple of minutes to fill or dump my Kindermann, it's like weight lifting, you will get a workout. I use mine with ADOX Borax Replenished which is a D76 Derivative. With Replenished Microdol-X Straight Replenished very long times are appropriate for me; I've gone as long as 28 minutes with some films. Just Sayin".

To solve this issue I plan to just develop in my darkroom, at least for now. Would need to find a way to time dev and agitation in the dark, but this is probably pretty easy to do. I am designing a developing tank for 70mm and 65mm that I am trying to get fill and dump times as fast as possible (30 seconds ideally), but we’ll see how that works out.

 

[Nokton48]

DSC05808 by Nokton48, on Flickr

This one I own has a 4x5 Graflok Back on it. I think I paid $35 back then.

DSC05820 by Nokton48, on Flickr

I filed out this Omega 4x5/70mm Carrier to take full frames from my smaller Beatty Coleman. Can see the sprocket holes in the edges of the prints.

 

[OrientPoint]

For those of you looking for a 70mm developing reel and accompanying tank:

Rare Kodak 70mm Stainless Steel, Unperforated 100 Ft Roll Film Processor | eBay

The 70mm Stainless Steel 100 Ft Roll Film Processor by Kodak is a high-quality film processing machine designed for film photography enthusiasts. With a sleek stainless steel construction and a length of 100 feet, this processor is durable and capable of handling large amounts of film. Kodak, a...

www.ebay.com

 

[MCB18]

For those of you looking for a 70mm developing reel and accompanying tank:

Rare Kodak 70mm Stainless Steel, Unperforated 100 Ft Roll Film Processor | eBay

The 70mm Stainless Steel 100 Ft Roll Film Processor by Kodak is a high-quality film processing machine designed for film photography enthusiasts. With a sleek stainless steel construction and a length of 100 feet, this processor is durable and capable of handling large amounts of film. Kodak, a...

www.ebay.com

Wow, AI description spotted. Womp womp.

Also, this doesn’t come with the loader, and it is not going to be possible to load without that… trust me I tried. After about a hour I managed to get maybe 50 ft on there in the light. You will have to build yourself one if you get this.

 

[OrientPoint]

How were you trying to load film onto this sort of reel? I've seen large crank loaders for this type reel for sale pretty inexpensively from time to time. The loader is bulky but quite lightweight. I have one that I got about 10 years so (with the reel). I don't have the tank though. I ended finding an old Jobo 70mm tank + loader set soon after, so I've not had to mess with loading these big stainless reels, or get into finding a tank. These days I use the crank loader I have to roll film from cans into a bulk loader.

 

[MCB18]

@OrientPoint I do have the loader for it, I think I showed a picture of it earlier in the thread. With that I can load the reel in about 2 minutes. It’s a giant piece of equipment as well though and probably weighs 10 lbs on its own, so it is not light nor small. It’s not like the JOBO loader, which I imagine is what you are thinking of.

I was attempting to load the reel just on a table without the loader to see if it was possible to do, out of curiosity more than anything… it’s really not.

 

[OrientPoint]

I see your post now. My loader looks like yours. It it large. It is not heavy though. Maybe 3 lbs and seems to be all aluminum. The Jobo loader is plastic and particle board. Feels flimsy, so I'm always concerned I'm going to snap the guide. It works well though (at least until I do manage to break it).