Kodak Tech Pan developing question?

[marko_kovacevic]

I got a roll of tech pan, and was wondering how to develop it. I would like a normal to slighty high

contrast.

 

I have Rodinal and t-max developer. I was thinking about Rodinal in 1-100 stand developed.

[erik_hattrem]

rodinal 1:300 gives fantastic results! 30 min stand development

[mark_hahn]

Photographer Formulary TD-3 is spectacular. Much better for "normal" negatives than Rodinal. Adding sodium sulphate to dilute Rodinal does help (google it, I forget what I used to do, but others, maybe on the Minox board will know).

[User_502260]

There is a fine line with Technical Pan between slightly high contrast and too much contrast. There used to be a list of developers you could use for Technical Pan at the unblinkingeye.com website. I have used the time shown for Microphen at 1:5 with some success.

[ted_wellendorf]

Sell the roll of Tech Pan on e-bay. Take the money you get from it

and buy 10 or 20 rolls of something else to play with, like Panf+.

You'll have a lot more fun. It's crazy what that stuff brings on

e-bay.

[mark_hahn]

If you only have one roll of TP and want any hope of gettng good images, use either TD-3 or Technidol... otherwise you have very little hope of getting pictorial images first go around.

[marko_kovacevic]

Ted, I want to try Tech Pan though.

 

How much would it bring?

[sergei_antonov]

I second Ted: get rid of it. I still have 2/3 of long 35mm roll, no wish to deal with it any more. I tried Rodinal, Xtol, TD3 -- in proper (documented) dilutions and times, all failed. The only thing that produced usable negatives for me was Kodak developer Technidol, you still could find it in some places. It is expensive, finicky film that require a lot of learning.

Even if you will get good negative, how many roll do you have? Or you just do it to tell your grandchildren that you did it? Sure, they will be impressed...

 

Good luck,

--Sergei

[john_shriver]

Technidol is still in stock at Calumet. Pricey, $13.50 a pack of six doses for 8 ounces each.

[marko_kovacevic]

I only have 1 roll of it.

[larrydressler]

Fool proof ISO 100 3 minutes in Diafine Solution A 1 minute in Solution B.

[User_502260]

Larry,

 

Is this for continuous tone use? The time in Part B is very short. Do you use stop bath after the Part B or is it not that time sensitive. I ask because I have some Diafine mixed up already and I have plenty of TP and Imagelink.

[christer_almqvist2]

If you have Rodinal, then use.

Very good results. Better than most "specialized" TP developers that cost a fortune.

I used the 1+150 dilution, and 2ml was enough for one film.

2 ml at 1+150 is the volume needed for a Paterson tank

[brent_bennett]

When the Tech Pan is gone, I suggest you start using Adox CMS-20. Incredible quality and resolution and fine grain. Made for continuous tone imaging. I have developed with Rodinol, but they make a special developer just for that film. They claim up to 800 lpm resolution.

[bljkasfdljkasfdljskfa]

Losers! I get great results with this film :). Just rate it around 10, develop in Microphen :)

[bljkasfdljkasfdljskfa]

here are some samples<div></div>

[bljkasfdljkasfdljskfa]

<div></div>

[christer_almqvist2]

dan,

 

yes, that is the sort of pictures that 35mm TP was made for!

 

Brent

 

I tried Adox CMS 20 in Rodinal, but the speed was like ISO 4 while I got 20 with the

developer Adox recommend. What speed did you get with Rodinal?

[larrydressler]

No Stop bath 30 second water bath then fix Yes it is short but it works Diafine and Acid stop do not play well together. Have the water ready dump Solution B add the water invert back and forth for 30 seconds. dump ad fixer and the rest is down hill.

[brent_bennett]

Christer,

Rodinal and Adox CMS20: 18 minutes, 68 degrees, 10 sec./minute agitation. Speed was about 20; I did not get any underexposures, even when testing with some b&w filters (with standard filter factors applied).

[christer_almqvist2]

Brent;

 

what Rodinal dilution did you use for ei 20 with 18 mins development

[simon_fallon]

Marko, I have devved dozens of rolls of Tech Pan and, after trying it in Rodinal diluted 1-250 I never again bothered with "special" developers, including Technidol. Eddie Ephraums suggests a Rodinal dilution of 1-200 for Tech Pan, which I find a bit too contrasty; on the other hand my nerve used to fail when it came to diluting 1-300 (I always worried that it wouldn't quite do the job, although if Erik says it does then I will happily take his word for it). Even at my slightly stronger dilution of 1-250, I used to mix up 600 ml of solution for one roll of film just to ensure that there was enough active ingredient to carry development through all the way. Temperature was 20 degrees (strict), times between 12 and 15 minutes, depending on contrast required. Many people, myself included, found TP to be very sensitive to "streaking" which shows up as uneven development marks in the emulsion, usually caused by too vigorous tank agitation and/or failing to vary the agitation pattern during development. Also, of course, too strong a dev mixture, although if you go with 1-250 or 300 dilution this obviously won't be a problem. A final point: TP has an extended red sensitivity so, unless you want blues skies and green foliage to turn almost black I recommend that you don't use a red filter; I stuck to medium orange at the strongest. Good luck.

[simon_fallon]

P.S. I always rated it at its nominal speed of ISO 25. Agitation was a mixture of twirling with a "twiddle stick" for the first five seconds, (after tapping the base of the tank smartly on the worktop a few times to dislodge air bubbles) followed immediately by five or six inversions. I would then rest the tank for a few seconds before repeating the twirl/invert routine. Thereafter I would agitate briefly- 2 or 3 seconds- every minute, alternating between twirl and invert. Sorry for the long winded posting but, as some of the other respondants have said, TP is tricky stuff and you don't have a practice roll.

[erik_hattrem]

Here is a example of Technical Pan in 120 format developed in Rodinal 1+300 at 20 degree celsius in a 30 minutes stand development.<div></div>

[erik_hattrem]

And here is a few examples of ADOX CMS 20 with the bundled developer. I have similar results with Neofin Doku.<div></div>