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  1. #1
    jrong's Avatar
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    Developing Tech Pan - help

    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

  2. #2

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    Quote Originally Posted by jrong
    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

  3. #3
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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
    Mark O'Brien -
    At the home of Argus cameras...Ann Arbor, MI
    http://www.geocities.com/argusmaniac/

  4. #4
    jrong's Avatar
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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.

  5. #5

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    Technidol development is not the same as normal twist and invert agitation. It's a shake up and down system... There are instruction on how to use it packaged with the developer.

    or...

    Check out this link,

    http://www.kodak.com/global/en/profe...p255.jhtml#100


    joe

  6. #6
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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.
    I love the smell of fixer in the morning. It smells like...creativity!
    Truly, dr bob.

  7. #7

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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.

  8. #8
    jrong's Avatar
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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.

    Cheers,
    jin

  9. #9
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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!

  10. #10
    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.

    http://www.apug.org/gallery/showphot...cat=502&page=1

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