Hasselblad 70mm is it still possible?

[eli griggs]

I guess I’m sick, as well. I have the mint 70mm back for my Hassy bodies (to include a 500EL/M or even my 903 SWC). I do not have the killer Nikor reel or can to process all of that in!

dan

A while back, I asked about film ribbons for 70mm film development and was pointed to a maker, whose data I need to search for but can always search for that thread or, ask the group again for tips about availability.

As to tanks, it just takes some effort to find a suitable container with lid, that can be locked and taped against inversion misadventures.

A large, strong rubber band of two, that'll allow the film and the apron, plus another trip or two around the circumference of the round assembly of package, minus container will keep the roll snug enough with some common sense handling.

Personally, you might find five or six inch plastic pipe, HDPE should be good with same sized OD/ID lids, caps, plugs, etc, in HDPE material.

If you do no mind a project, you could even clean and recycle number two (#2) plastic, which we've discussed above and make a tank yourself, as this material is everywhere, household milk jugs, laundry detergents, Drano, and many other jars and jugs used in everyday life.

Avoid all the other plastics, with the exception of LDPE, it's 'safe' though, just no as strong as HDPE.

 

[Nokton48]

Mac at Camtronics has CLA'ed and replaced light seals (which I supplied) on two A70's, and I've just tested both with dummy 70mm film, and counting as well as spacing is perfect. He said one was really dirty inside, needed cleaning. It's like new now. The other one he says is OK, not great, but it WORKS. Good enough for my uses!

So now I have five working good A70's, and now four Graflex RH50's, the RH-50's will fit about everything. Great on Makiflexes. Now to load some 70mm cartridges. He installed the new light seals and did the CLA's for $60 each, quite reasonable. I think you can ship to them, enquire.

Camtronics Camera Repair – Columbus Ohio Camera Repair and Video Transfer Service

 

[Nokton48]

I have a 70mm thread I started over at RFF. Lots of useful info there

70mm Film FUN up ahead

Hi All, I am a big fan of 70mm and have been stocking up with film in my deep freeze for many years. Recently I had to remove and rearrange things, so this seems to be a good time to take an inventory. 70mm Kodak Surveillance Film by Nokton48, on Flickr This is fourteen rolls of 70mm Kodak...

www.rangefinderforum.com

 

[Nokton48]

70mm Kodak WL Surveillance Film D23 1:1 20' 62F by Nokton48, on Flickr

Plaubel Makiflex Graflex RH50 70mm Back, Kodak Surveillance Film, D23 1:1 20 minutes at 62F. Two reel Paterson Tank Modded 70mm Reel holds 220 length, I like the WL Surveillance (bank camera film?) very high speed, pushes to 1600 EI with good results. As you can see I bracketed the roll to give myself choices in negative selection. 70mm HP5+ also available and has a different rendering than this stuff. The D23 provides a wide range of soft tonality that I kind of like. Previously I have been developing this film in replenished ADOX Borax MQ, which results in a much "beefier" looking negative. Good to have a choice

 

[Nokton48]

DSC05743 by Nokton48, on Flickr

Kodak WL Surveillance 70mm Film ADOX Borax Developer Replenished Kindermann 70mm Tank Hartblei 1006 Body Modified to take Hasselblad Film Backs Pentacon Six Lenses Vivitar 283 Strobe XTC Mini Softbox. Shooting P6 lenses on 70mm film was a total hoot. Beefy development from the ADOX.

 

[Nokton48]

My stash of 70mm 24 exp rolls 05 2022 by Nokton48, on Flickr

My plan for this shooting year, Plus-X Pan (the original stuff), Kodak WL Surveillance Film, Agfa Aviphot 200 (Rollei 400s), and HP5 Plus. The Aviphot and the HP5+ are fresh film. I shoot a lot of expired film too, no real differences. I have collected, cleaned and dusted, added blue tape, to my remaining stock of Kodak 70mm Cartridges. All of these cartridges are complete, including the silver inner clip. It is important that the film go completely into the exposed cartridge, without damaging the film transport. My plan is to load 24 exposures including header and leader, which I can develop on a Unicolor Uniroller, using my JOBO 2500 with modified 120 reels, or my Patterson which holds two 24 exp 70mm modifed reels. I bought up, cleaned up, and modified another Unicolor Uniroller, this one has continuous one way rotation.

 

[Nokton48]

70mm Kodak Surveillance Film by Nokton48, on Flickr

 

[mshchem]

70mm Kodak Surveillance Film by Nokton48, on Flickr

Well played Sir!

 

[MCB18]

I acquired this roll of Aviphot Color N400 a bit ago, and I have no idea what to expect. Apperently it has been frozen or cold stored since new, but with 400 speed C-41 film, I still feel like it’s kinda If a crapshoot. I’ve tried finding examples online, but no such examples appear to exist. I really don’t want to unseal it unless I know for certain that it’s something I want to use. Anyone who can shed some light on this?

 

[Nokton48]

I bought a fresh roll from an Agfa Dealers/ Aerial Photography Guys down in Florida. Don't shoot color, they also had Aviphot 200 B&W (same as Rollei 400s). Heard N400 is rather grainy, I believe mine is type II perfed. I think Europano here has some experience with it. Might be OK in C41 chemistry?? For color shooters it might be worthwhile.

 

[Nokton48]

Well played Sir!

A Military Surplus place out in Utah had half a case of this stuff! I tried a roll first, then bought the rest of it. Government Contract stickers with contract numbers on each roll. Quite a good snag.

 

[MCB18]

I bought a fresh roll from an Agfa Dealers/ Aerial Photography Guys down in Florida. Don't shoot color, they also had Aviphot 200 B&W (same as Rollei 400s). Heard it's rather grainy, I believe mine is type II perfed. Might be OK in C41 chemistry?? For color shooters it might be worthwhile.

Supposedly fine in C-41 according to the data sheet, but that data sheet is the only info I have on this stuff. I bought it on impulse because it was so unusual, and relatively cheap, not realizing how scarce info on it was.

Half tempted to try and sell/trade it for something else, but also curious to see results. I asked Zach at Mercury Camera about it, and he said that he was planning to test it, but I haven’t seen any results from it. Guess we’ll see.

 

[Edgy01]

I simply have no need for such quantities, although camera wise I could do it—500EL/M and a 70mm back. My biggest issue is I am unable to develop such a long roll. I maintain a wet darkroom but that is still outside my range of capabilities!

Dan

 

[MCB18]

I simply have no need for such quantities, although camera wise I could do it—500EL/M and a 70mm back. My biggest issue is I am unable to develop such a long roll. I maintain a wet darkroom but that is still outside my range of capabilities!

Dan

If you have a film-safe darkroom, then you should be able to develop 70mm film with a similar system to dip-and-dunk, just get this reel and a few containers to put chems in (dev, stop, fix, rinse), and you’ll be golden. This is what I would do, but unfortunately the back for my camera is prohibitively expensive. Would love to shoot this stuff as it’s intended.

 

[eli griggs]

I simply have no need for such quantities, although camera wise I could do it—500EL/M and a 70mm back. My biggest issue is I am unable to develop such a long roll. I maintain a wet darkroom but that is still outside my range of capabilities!

Dan

Consider a ribbed film development ribbon/apron, if you can not get a dedicated reel and tank.

The ribs at the top and bottom keeps the image areas cleared and spaced for film developing and there are several ways to find and use an improvised tank and lid for film and apron, IMO.

 

[MattKing]

Consider a ribbed film development ribbon/apron, if you can not get a dedicated reel and tank.

Kodak used to make development aprons for their Kodacraft tanks that were designed for 116/616 film, which is the same width as 70mm. I've looked casually, but never have been able to find one - I already have the tank!

 

[Nokton48]

SONY DSC by Nokton48, on Flickr

If you only want twelve 6x6 70mm exposures, "THE PATERSON TANK" will load a 120 length of 70mm film. It uses swizzle stick for agitation, the big knurled knob on the top does the spinning. Useful for short lengths of 70mm film.

 

[Nokton48]

Step 5 Use a dummy 220 70mm roll to set reel spacing perfectly by Nokton48, on Flickr

The Modern Paterson Reel can be modified to fit the wider 70mm film. This one will hold a single length of 24 6x6 exposures, or twenty 6x9 exposures, this fits in the small Paterson Tank. For me this is a perfect length of film in my A70 Hassy and Graflex RH50 backs. There are photos on my Flikr site that show how to build this.

 

[Nokton48]

Modified Paterson holds 2 70mm reels plus 35mm by Nokton48, on Flickr


I bought this Paterson System 4 medium sized tanks and modified it to take two 70mm 24 exposure rolls of film, plus also a roll of 35mm on top. I used these tanks many years agho and they work great on my Unicolor Uniroller. Throw it on and walk away for "lazy slacker" processing. Two rolls of 24 exposure 70mm + one 35mm is good production for me.

 

[Stanly]

Hi forum members! My first post here, sorry if I mess something up

My question is: does the Hasselblad 70-100/200 back use the same spools as those used inside cartridges for regular 70 backs? Does it also accept cartridges?

Thanks!

 

[mshchem]

Hi forum members! My first post here, sorry if I mess something up

My question is: does the Hasselblad 70-100/200 back use the same spools as those used inside cartridges for regular 70 backs? Does it also accept cartridges?

Thanks!

The longer film backs used 100 foot spools of 70mm, I believe these came on a Kodak metal spool. Not sure exactly but I know that the A70 cassettes that Kodak sold, came loaded with your choice of film. No way these cassettes would hold much more unless it was a special thin film.
Here's an interesting article on Ebay, crazy thing

Hasselblad 70/500 Film Magazine Excellent++++ Very low use | eBay

Hasselblad 70/500 film magazine in excellent++++ condition. You won't find one finer than this. The film magazine must be loaded in the darkroom, as the film spools are open and it is a tricky job getting the film started.

www.ebay.com

 

[mshchem]

Hi forum members! My first post here, sorry if I mess something up

My question is: does the Hasselblad 70-100/200 back use the same spools as those used inside cartridges for regular 70 backs? Does it also accept cartridges?

Thanks!

OK, I got out my Hasselblad books. It refers to the 100/200 exposure back. Using special film spools, magazine must be loaded and unloaded in the dark. With regular film you get 100 exposures, with special thin base films you get 200 exposures. Requires 2 special spools 51055 to operate. There was a special data recording version, offered 1985-88, uses the same special spools.

 

[mshchem]

 

[mshchem]

The original A200 backs were how NASA got 200 exposures per magazine. Since they only came back from the Lunar surface with the magazines, the cameras and lenses (and anything else that wasn't required) was tossed out the hatch before liftoff from the moon.
I suspect someday these cameras will be listed as Near Mint+++ on Ebay.

 

[Stanly]

Thanks for the info! Those are some nice books you've got

Attaching an image of what I was able to find up till this point from different manuals and catalogues

The regular 70 back was made for the pre-loaded / reloadable cartridges while the 100-200 version of that back could fit up to 200 exposures if film was thin enough, However it had to be loaded in the dark since there was no cartridge protecting the spool. What I'd like to find out is – are the spools for 100-200 backs same as those used in the cartridges for the 70 backs? They do look similar!

P.S.: the 100-200 back could be loaded with:

0.14mm thick film > 100 exposures
0.12mm thick film > 115 exposures
0.11mm thick film > 125 exposures
0.08mm thick film > 162-175 exposures
0.07mm thick film > 200 exposures