Found film help needed

rover

rover

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I have a roll of found film, 120 Ilford HPS Panchromatic. "Chromatic" means slide film right?

This is from the Super Ricohflex my father's friend gave him. If I can develop it and return the photographs to him that would be nice.

I wonder if 40yo slide film can be developed?
 
I'm pretty sure that Panchromatic means that it is B+W film that is sensitive to all colours of the spectrum as opposed to orthochromatic which has no sensitivity to red. You've got yourself some B+W film there, Ralph!
 
Now I have to figure out how long to let it swim in the D76. It isn't listed on the Massive Development Chart. Any other ideas?
 
rover,

time/temp for pan f would be a place to start.

i think pan f is rated at 50 and my guess is your film was rated at 32.

joe
 
1956 puts it right where I think I am looking.

"Ilford HPS roll film (120 size) and 35mm film introduced "the fastest film in the world". Fast panchromatic, 400ASA in daylight, 320ASA in tungsten light. "

So it is a fast film.
 
Too tired to think anymore.

Right now I am thinking D76 1:1 for 13 minutes.

I will search more tomorrow.
 
That sounds good.

Some developers are called compensating developers, that is, they are not too aggressive but just develop as much as they should and then additional time does not result in more development. I think D76 is a more aggressive developer used to maximize film speed. You may be better off with Ilfosol S or some other less aggressive developer.
 
rover said:
Now I have to figure out how long to let it swim in the D76. It isn't listed on the Massive Development Chart. Any other ideas?
Click to expand...


With film that you know nothing about I would recommend Diafine, not D76.

There is ABSOLUTELY no more forgiving developer. It is a two part compensating developer. You do not have to monitor either time, about 4 minutes (more or less) for part A, then 4 minutes (more or less) for part B, or temperature (as long as parts A&B are even remotely close to the same temperature when you start.).

You will find Diafine to be a somewhat 'flat' developer, not nearly as contrasty as others but with a large dynamic range. However, this is a GOOD characteristic nowadays in that scanned negatives let you do a lot with the information you scan whereas in the paper/chemical based darkroom, you sometimes had to use some pretty contrasty paper to get the best from Diafine.

Check it out. There is info available on the net about this great old developer. I use it all the time. Ilford HP/FP films loves the stuff and it is perhaps the best developer for Tri-X ever made.

Tom
 
FrankS said:
That's what I was talking about. Good one, Tom!
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I am amazed more people do not know about Diafine. I have been using it for 35 years.

Got one roll each of Tri-X, HP5, T-Max, Plus-X and Agfa APX 100?

Throw them ALL in the soup at the same time... 35mm or 120 makes no difference either.

Great stuff and it lasts FOREVER. You can keep using the developer for as long as you have enough part A left to cover the film roll. I have used the same gallon batch for over a year with several hundred rolls put through it. Part B gets a bit grungy looking but it keeps on working. Seems to get even better after a dozen or so rolls have been put though it too, just like the old 777 formulation did.

It is the only developer I use any more. Truly the lazy and frugal man's dream.

Tom
 
rover said:
1956 puts it right where I think I am looking.

"Ilford HPS roll film (120 size) and 35mm film introduced "the fastest film in the world". Fast panchromatic, 400ASA in daylight, 320ASA in tungsten light. "

So it is a fast film.
Click to expand...

amazing how 'close' i was!

aggghhhh.......!!!!!!!!!!!!!

joe
 
I used to use both Acufine and Diafine back in the '60's. Also Rodinal. I can't recall why I quit the three and went to D76.

I probably used them in the first place because, as a newbie, I had been told they worked better when you pushed TriX.
 
Wow, this Diafine sounds great, now I have to find some.

Ok, from my lunch time reading, do you shot your films at the film box speeds or at the speeds recommended on the Diafine box?

Has anyone developed fast film, Delta 3200 or TMax 3200 in it?
 
rover said:
Wow, this Diafine sounds great, now I have to find some.
Click to expand...
You can click through to Adorama -- they stock it.

I've been looking for months for a Canadian supplier, with no luck. It's not economical for me to pay cross-border shipping for a box of chemicals ...

Gene
 
Hi Rover -- I'm a fan of Diafine, now my only silver-B&W developer. Since varying the time/temp of development (within broad limits) has no effect on the image density, the only remaining variable element is exposure. Diafine is a super compensating developer that, by increasing the density of shadow areas of the image, truly increases the film speed of some films. Some films like Pan F are not boosted in speed, while Tri-X is, for instance. Though the Diafine box may be a little optimistic on the suggested film speeds, that's your best guide. I think they say 1600 for Tri-X, whereas 1000-1200 is more realistic, but that's only down half a stop or so. I also run Ilford FP4 at EI 250...

I have shot Delta 3200 at EI 1600 and developed in Diafine, but I have not printed or scanned it to be able to share samples. But the negs look excellent.
 
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