HP5 taken at 100iso...

[angeloks]

Doh, I didn't see that my canister had a 100iso DX code... I usually have the 400iso ones... Well, I ended up overexposing my film by 2 stops...

I see on the film datasheet that it can be pushed to 3200iso, but it's never mentionned that it can be pulled...

I once did the same mistake. I developped it has if it was a 400iso (with HC-110). I ended up with a severely overexposed film, but at the scanning and with photoshop, I could save some pictures...

Has anyone pulled HP5 by 2 stops? What would you suggest for developing?

 

[iml]

10mins in Xtol 1+1 works just fine in my experience. The Massive Dev Chart is a good place to look:

http://www.digitaltruth.com/devchart.html

Ian

 

[jaypolaski]

You really shouldn't have any problems pulling the film 2 stops. I've found that the latitude on that emulsion is amazingly forgiving.

 

[Jonathan R]

I'm only thinking aloud, but it seems tro me that you're going to end up with very low contrast negs, if you use a standard developer for a shorter than normal time. I'd be inclined to think about softer acting developers, perhaps Perceptol or something like that. Does anyone else agree?

 

[lZr]

I dev my HP5+ 400 ISO in HC-110 dil H for 10 min, 20C. For every stop pull, I subtract 20% in dev. time. So, my idea is to run the developer for 6 min, 20C for ISO 100. Hope it helps

 

[oscroft]

I've never done this, and so far I've only developed 5 rolls of film with HC-110, so use that to gauge my (lack of) expertise 😀

I think I'd try HC-110 dilution B for around 3 minutes @ 20C (the recommended dev time for ISO 400 is 5 mins) - the overexposure will give lower contrast, so the stronger highlight contrast with HC-100 (providing it's not diluted too much) might help.

But before you decide what to do, I'd strongly recommend you wait until someone more experienced comes along with some advice 😀

Best of luck - do let us know what you end up doing and how it goes.

 

[angeloks]

Thanks for your reply. I might try your idea Ian. And thanks for the link!