Developing Tech Pan - help

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jrong

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I just used my first roll of Kodak Tech Pan 120 format while on holiday. Used a yellow filter on the lens all the time, +1 compensation.

Now I don't know anything about how to develop Tech Pan. My developer of choice is Rodinal, although I hear that Technidol might be a safer bet with Tech Pan. Any suggestions and experiences are VERY welcome!

jin
 

modafoto

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jrong said:
I just used my first roll of Kodak Tech Pan 120 format while on holiday. Used a yellow filter on the lens all the time, +1 compensation.

Now I don't know anything about how to develop Tech Pan. My developer of choice is Rodinal, although I hear that Technidol might be a safer bet with Tech Pan. Any suggestions and experiences are VERY welcome!

jin

Hmmm...how did you rate the film?

I have found the following times and dilutions for Rodinal and Tech Pan.

My own use: ISO 16: 5 minutes in 1+99
From MDC: ISO 25-64: 7 minutes in 1+150 or 12 minutes in 1+300

Here is loads of times in all sorts of developers:
Unblinking eye - Techinal pan development

Greetings Morten
 

mfobrien

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What EI did you shoot the Tech Pan at? If it was around an EI of 25, and you were shooting for a full tonal scale, then you need to use Technidol for best results. You can use Rodinal 1:100 or 1:150, but you may not like the results. I have also seen others using HC110 and other developers -- but unless you are prepared to do some experimenting to see what works, stick with the Technidol. If you were shooting for hi contrast, you can use Dektol. Do a google search on TechPan developers and you will undoubtedly come up with a lot of helpful information.
Mark
 
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jrong

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I exposed it at ISO 25. I had a look at Digitaltruth and it published the times for "High Contrast, Continuous Tone" for Technidol LC as "7-18 mins".... errrr... what does this mean? And do I develop with Technidol "normally", i.e agitation first 30 secs, then every min thereafter? Sorry if this is a dumb question.
 

dr bob

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Photo Techniques magazine has a reasonable article on this very subject.

I have no affiliation with them nor have I renewed my subscription - they just keep sending it.
 

f64'ed-up

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I have used and processed a lot of 120 TP over the past few years. Having looked at your website, I think you will be unsatisfied with any developer other than Technidol, and possibly with that as well. I have many outstanding prints made with this combination in both 35 and 120, but of late, I have experienced uneven development using Technidol in large expanses of middle grey tone (i.e., skies). This is all but invisible on otherwise stunning negatives, but always prints into the sky. Testing other developers, I found Rodinal 1:100 -> 1:200 was way too much contrast, while 1:300 produced similar, but not identical tonalities, and insufficient shadow detail. PF's TP developer was just "weird". I am still unsure whether this is a developer or an emulsion problem. Use 2 packets (16oz) of Technidol 9 min. at 20c. It can (and should - some of my very best were processed with re-used developer?!?) be saved to process a second roll (within a day) giving an additional minute. As always call Kodak's support line to confirm procedure, but they will only parrot the Technical Bulletins already published, and those are the procedures I follow.
 
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jrong

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Thanks for your thoughtful responses, everyone.... Jdef, I think I'm holding back from experimenting with pyro at the moment although that's something to earmark for the future. I think Technidol is probably my safest bet at the moment since it is my first roll after all. :smile:

Cheers,
jin
 

NikoSperi

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Technidol et al

I've never managed to get decent (continuous tone) TP out of HC110. Textbook would be 9 minutes in Technidol for film exposed at 25 EI - shaken, not stirred.
I've found that an even softer alternative than Technidol is Tetenal's Neofin Doku. Beautiful film - use it while it lasts!
 

tbm

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I love TD-3! I've posted a sample print I made yesterday and scanned this morning. I wish you could see the actual print: it's absolutely gorgeous! The roll was exposed at ISO 64 and developed for 20 minutes.

(there was a url link here which no longer exists)
 
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jrong

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How sensitive is Tech Pan to slight overdevelopment, i.e leaving it in the soup for 30 secs longer than specified? I hear that it is extremely sensitive in Rodinal, resulting in super high contrast....
 

roy

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I know that Hugh Milsom uses a highly dilute Rodinal solution.
 
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