Neopan 1600/800; HC-110

[mike goldberg]

Hi all,
I've got 3 rolls of Neopan 1600, that have been in the fridge for 10 years, or so. So, I want to expose at 800, and in general, have had good results with Tmax in HC-110. My dilution is 1:14, and there are several time & temp options to chose from.

What's the experience of others in pulling Neopan, and in development?
Thanks...

 

[titrisol]

After 10 years 800 would be a decent speed to expose.
Just expose it and develop normally (a +1 exposure will just give you rich shadows)

 

[wkrassowski]

Recently I have developed Neopan 400 exposed at 200 in HC-110 dilution H (1:63) at 68F for 8 minutes (recommended time of 10 minutes for 400 reduced by 20%). Result is good.
I do not understand the part about 1:14 ratio. I am assuming you're not talking about straight syrup dilution here. What are you diluting then?

 

[drewbarb]

This film at ten years old might be even slower than 800- I might even shoot it at 400. Fast films tend to lose speed and develop more base fog as they age more-so than slower films. You might shoot a bracket and run it as a clip test for the rest of the 3 rolls.

As for HC 110- are you using the American or European syrup? I'm not familiar with a 1:14 dilution, but it might be a common one for the European version of the syrup- can you be more specific about the dev regimen? With either syrup, I'd be inclined to recommend more dilution and longer dev time for this film. I think you'd want your time to be at least 7 minutes, and hopefully closer to 10 minutes (or even longer) so you'll need to find a dilution that works.

 

[mike goldberg]

Hi there; good to hear from you,
I don't know where I got the 1:14. I'm talking about one part of the European HC-110 syrup, and I follow Covington's directions for mixing it. This means 30 ml syrup and 430 ml water in a stainless, 2-reel tank. So I won't get mixed up, I do this whether I develop one roll, or two... then dump the developer. This has worked well with Tmax.

As for my dated Neopan 1600, I'd like to expose it at 800 [I'll bracket one stop towards 400]. Can you recommend a dilution, time and temp?
Thanks,

 

[mike goldberg]

Hi Drew,
Our messages "crossed." Yes, the emulsion might have slowed down beyond 800; thus the need to bracket. There are several film-dev charts I can check with to arrive at dilution, time & temp.
Cheers,

 

[peter_n]

Mike take a look at the link:

http://photo.net/bboard/q-and-a-fetch-msg?msg_id=00E1zO&tag=

 

[sepiareverb]

I would bet it's pretty fogged after 10 years.

 

[mike goldberg]

Here's another resource:

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

I have used dated+refrigerated Tmax with no problems... dated past the expiration date, by 2-3 years. However, as I mentioned, the Neopan 1600 has been in the fridge at least 10 years. I'd hate to shoot up a whole roll and find it fogged. Maybe it would be best to throw it out :-(