Outdated Ilford 220 film

I've just acquired some outdated HP4 and FP4 220, and I'd appreciate and sugggestions for exposure index and developed and times.

400 HP5 / 125 FP4, Develop per data sheet.

Now how old are they? Not that it would change my starting point.

I've kept mine in the refrigerator, and so far I haven't needed to give it any special treatment.

I have just recently got back into the darkroom but I found some HP5 35mm that was exposed over 15 years ago and developed it with ID-11 at standard times and it came out OK.

Send them to Simon Galley. Then he can see how these are made...

Does anyone know the recommended development times for HP4 relative to temperature? I'm also about to try some out (35mm) through my Kodak Retina 1 (Type 149). The film is undated, but came with a batch of old film of which the newest dated roll was 1972, and I've no reason to think it has been stored refrigerated, so I'm not expecting great results! I'll be exposing it as 400ASA.

Not got anything for various temperatures, but here's some original information re: development times I posted in another thread:

These times were sent to me by Ilford, about 15 years ago...

These times are for rollfilms. 35 mm times are a bit quicker for HP3 and HP4, but a bit longer for the FP3...?

FP3 @125ASA Microphen: 6mins normal contrast, 8.30 high contrast.
FP3 @125ASA ID-11: 7.30 normal contrast, 10:00 high Contrast

HP3 @400ASA Microphen: 8mins normal contrast, 12min high contrast.
HP3 @400ASA ID-11: 10min normal contrast, 14min high contrast


HP4 @400ASA Microphen: 6mins normal contrast, 7.30min high contrast.
HP4 @400ASA ID-11: 9min normal contrast, 11min high contrast


I've used VERY old HP4 before - it had a very high base fog which effectively chopped the useable speed in half at least, but it was a fairly even fog - almost like the film had a hazy matt backing. It printed ok and gave passable, but very grainy, images.


Ah! Grytpype! You've just PM'ed me?
I didn't realise it was you... hello again!

HP4 always had a higher base level than most films it was only a slight improvement on HP3, HP5 was a big improvement on them both.

Ian

steven_e007 said:

These times were sent to me by Ilford, about 15 years ago...

HP4 @400ASA Microphen: 6mins normal contrast, 7.30min high contrast.
HP4 @400ASA ID-11: 9min normal contrast, 11min high contrast

Click to expand...

Any idea which dilutions these are?

Thanks Steve.

I have tables for HP3 in ID-II at various temperatures, so a bit of extrapolation from your timings will give me equivalent figures for HP4.

If anyone else needs to know, these are: -

HP3 roll film: 20 mins @ 60ºF/16ºC; 15 mins @ 65ºF/18ºC; 13 mins @ 68ºF/20ºC; 8½ mins @ 75ºF/24ºC.

HP3 35mm: 16 mins @ 60ºF/16ºC; 12 mins @ 65ºF/18ºC; 10 mins @ 68ºF/20ºC; 7 mins @ 75ºF/24ºC.

The table says the figures are for "average negatives" with "moderate agitation". "The times given are for a gamma of 0.65 for miniature films and 0.8 for all other materials. They may be increased by up to 50% for greater contrast."

Steve (another one!).

StanW said:

I've just acquired some outdated HP4 and FP4 220, and I'd appreciate and sugggestions for exposure index and developed and times.

Click to expand...

Old FP4 (not the FP4+ stuff we now use) I used to expose at 100ASA & dev for 8 mins in ID11 1+1 - for a condenser enlarger.

I have a few 30year old rolls knocking around (never refrigerated) and exposed one a few months ago & dev'd it for 8 mins - it was surprisingly OK.

Base Fog was a up a bit but it was perfectly useable

I wouldn't choose to use it on anything important but it was good enough for messing around with

Martin

Again, how much outdated?

Toffle said:

Any idea which dilutions these are?

Click to expand...

The figures were for the stock solutions, I believe.

steven_e007 said:

The figures were for the stock solutions, I believe.

Click to expand...

Thanks, I've just picked up the entire contents of an old pro darkroom including lots of 4x5 film. I'm going to need to figure out developing times for a lot of discontinued films.