Current options for tech pan development?

Athiril · Apr 14, 2013

Ideally would like a technidol substitute for 0.5 to 0.6 contrast index times/etc. ISO 16-32.

Must either be something off the shelf from the follow:

Current Kodak (excluding HC-110) or Ilford developers, Rodinal, Adotech II, LP Docufine

Or something mixed up. Have phenidone, metol, hydroquinone, the usual.

Must give times, must have even development without issue (pre-soak no pre-soak?).

No test roll to run through, only a single roll.

edit: Just found the info sheet for the LP Docufine, which has times for Tech Pan at different ISOs and gives the gamma for each one, so this is probably the choice for now (iirc its the same developer as Rollei RLC?)

chriscrawfordphoto · Apr 14, 2013

I did some many years ago in Rodinal 1+100 that came out nice. I forget the developing time though. It was almost 20 yrs ago.

John Wiegerink · Apr 14, 2013

I'm with Chris on the Rodinal, but other will chime in and some will even advice against Rodinal for another developer. I think the shoots Chris has up speak for themselves. Years ago it was Rodinal 1:200 for me and I've heard of folks even going to 1:300(tried it too) for TechPan. I know the 1:200 worked fine for me, but you have to make sure you use enough volume/concentrate of developer since your diluting it down so much. I have a box of the liquid technidol packets that I'm saving just in case I run into some TechPan, but I'd have no problem using Rodinal if I didn't have it. JohnW

Neal · Apr 15, 2013

Dear Athril,

I use C-41 developer for 8-1/2 minutes in my Jobo (10 minutes using Kodak normal agitation technique). This was stolen from an old Photo Techniques Mastering Black-And-White Photography Vol 1 and it works wonderfully.

Neal Wydra

madgardener · Apr 15, 2013

Would the Bluefire police developer sold by Frugal Photographer work?

PhotoJim · Apr 15, 2013

There's a time and dilution Kodak used to publish for XTOL that was glorious on Technidol. However... EI 6.

Hatchetman · Apr 15, 2013

Michael R 1974 said:
TD-3

This seems the obvious answer. From Photographer's Formulary.

Mike Wilde · Apr 15, 2013

Sorry, my calibrations for TP are for T/O XDR-1, from the Darkoom Cookbook. Basically 1g of metol per liter and very little else. Notes are at home, but I can gather if you express an interest.
I bought a 25 sheet box of 8x10 hard stored TP. I cut it to 4x5 - one of these quadrants has had the gelatine thinned by having a hard object press on it. These sheets are used as 'guinea pigs' - the sheets to determine CI's etc.

EdSawyer · Apr 15, 2013

For only one roll, I'd get some Technidol from Ebay in the foil packets. It should still be fine.

Athiril · Apr 15, 2013

Guys, again. Only whats listed above, or formulas. Nothing else. Especially from an overseas store. Seriously, why do people have a hard time sticking to the outlined requirements?

Regardless, went with Docufine 1+4, 7 minutes, 20c. No idea what the shot speed was, had no information, was a found roll. Assumed ISO 25 was most likely. Though given the density, appears more like it was shot at ISO 12, but still otherwise useable.

Mike Wilde · Apr 17, 2013

So, not a commercial mix, but called TDLC-103. 1g metol, 5g soduim sulfite (pinch of this in prior to metol first), 10g sodium bicarbonate per litre.
5g/l sodium sulfite as a stop bath is recommended with this. Not sure why; I have not experimented without it.

Calibrated times at night by laying a Stouffer TP120 6x6cm 31 step 1/3 step step wedge on top of an inverted spare omega dichoric head under a copy camera. The head was dialled to 100C +30M to simulate daylight adn a DB diffuser was used and step wedge was masked off to cut down on possible flare. Shot with room lights off. Metered with a spot meter onto the 12th step to try to meter what I hoped would be middle grey. Took meter reading and factored in 2 stops for the bellows factor of the lens setting on the copy camera, a Polarid MP3. So exposure was f/5.6 1S as a first trial at EI25.

Shot 4 negatives, and put all in same tank of developer. Pulled hangers and set into stop tank as timer ran. Ended up with data for 20C temps of times of 5, 8, 11, and 16 minutes, 30" agitation intervals.

HD plots showed that for EI 25, I only got density out to 15 1/3 steps for the longest development time, and slope was steeper than standard development.

So next round was EI 12, and I developed for 8, 10, 12.5, 16 and 20', again agitiate every 30". Much better data from this round. Exposures out to 20-22 steps.

I use a R-18b Kodak development dial for all of my work. It comes from a mid 80's darkroom datatguide, and is handy for translating results to a standard 20C when things are not quite 20C. I have extended it's range to work out at 38C for E-6 as well.

Nicholas Lindan · Apr 17, 2013

Different folks like different looks. Some like the look of TP in Rodinal, some don't. Ditto for just about every other developer out there.

Technidol works better than anything else. The next best is probably C-41. You can have TP developed by someplace that does color negative processing. Just make extra, extra sure they don't put it through the bleach or blix - the result of either will be clear film. In the old days of real camera stores that knew what they were doing it was no problem getting Tech Pan souped in C-41.

Mike's suggestion of TDLC sounds fine by me. Tech Pan responds very well to pulling. I develop in Technidol and pull 1 stop exposure/-20% development time for a perfect match to grade #2 paper.

The other alternative is very dilute HC-110 - if the MSDS is anything to go by this is probably the closest thing to Technidol you can get.

StoneNYC · Apr 17, 2013

The problem is you don't know what it was shot at... So how can you develop it properly? You can't you can only guess...

The massive dev chart has generally accepted times which tend to be accurate in most cases.

PRE-soak always says PE and I tend to follow his suggestions. Pre-soak 2-3 minutes.

Then follow these times... Pay attention to the exposure index and pick the one you suspect was used on the film since its already exposed.

In addition I've developed Tech Pan in ilford DD-X at 6 minutes based on EI16 with good but high contrast results. But the film was from the 1980's so who knows how that affected the speed.

Hope that was helpful and within your "request guidelines"

~Stone

Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk

StoneNYC · Apr 17, 2013

The above times are always 1 minute gentile agitation and 2 gentile inversions every minute for the remainder of time for development.

~Stone

Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk

MattKing · Apr 18, 2013

StoneNYC said:
The above times are always 1 minute gentile agitation and 2 gentile inversions every minute for the remainder of time for development.

~Stone

Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk

Are gentile agitations kosher?

StoneNYC · Apr 18, 2013

MattKing said:
Are gentile agitations kosher?

Haha probably not, but I'm Roman Catholic and my girlfriend is Orthodox Jewish (except the dating me part) so I guess I can pretend its kosher

~Stone

Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk

Athiril · Apr 18, 2013

Here's the docufine times with contrast index in case anyone was interested

Also attached locally for preservation

dr5chrome · Apr 21, 2013

Slides

We run much TP still in dr5 - http://www.dr5.com/blackandwhiteslide/tp.html
It is still a viable film. Even abused, it lasts a long time. I have found the best processing option for TP are positives.
That kodak didn't make tecnadol available for the long term leaves no other option in my opinion.

dw

Athiril said:
Ideally would like a technidol substitute for 0.5 to 0.6 contrast index times/etc. ISO 16-32.

Must either be something off the shelf from the follow:

Current Kodak (excluding HC-110) or Ilford developers, Rodinal, Adotech II, LP Docufine

Or something mixed up. Have phenidone, metol, hydroquinone, the usual.

Must give times, must have even development without issue (pre-soak no pre-soak?).

No test roll to run through, only a single roll.

edit: Just found the info sheet for the LP Docufine, which has times for Tech Pan at different ISOs and gives the gamma for each one, so this is probably the choice for now (iirc its the same developer as Rollei RLC?)

wildbill · Apr 21, 2013

dr5chrome said:
We run much TP still in dr5 - http://www.dr5.com/blackandwhiteslide/tp.html
It is still a viable film. Even abused, it lasts a long time. I have found the best processing option for TP are positives.
That kodak didn't make tecnadol available for the long term leaves no other option in my opinion.

dw

"I have found the best processing option for TP are positives."
I would too if that's how I made my living
I still have yet to send you guys some film. Been meaning to do it for years.

Here's how I've been doing it.
25asa (sheet film)
2 minutes presoak
68 degrees
rodinal 1:100 in jobo expert drum speed 3 for 5-6 minutes depending on the contrast range
I print with chromega heads on vc paper. The results blow my mind every time.

Untitled by vinnywalsh.com, on Flickr

first frost by vinnywalsh.com, on Flickr

dr5chrome · Apr 21, 2013

..send film in or not, I could care less. I don't make 100% of my living processing film.
It's beyond my comprehension why some who post here turn a suggestion into a boner.

Process the film your-self as a positive, it's still the best result for the film today.
..is that the answer you wanted to hear... Bill..?
If you were meaning to send in film and never did, perhaps now you lost that opportunity..

regards. :munch:

wildbill said:
"I have found the best processing option for TP are positives."
I would too if that's how I made my living
I still have yet to send you guys some film. Been meaning to do it for years.

Here's how I've been doing it.
25asa (sheet film)
2 minutes presoak
68 degrees
rodinal 1:100 in jobo expert drum speed 3 for 5-6 minutes depending on the contrast range
I print with chromega heads on vc paper. The results blow my mind every time.

wildbill · Apr 21, 2013

Did I not post helpful information that actually answers the op's question rather than suggesting something else which benefits my own business?
Are you making a lot of prints from slides in your darkroom?
I was joking that's why there's a smiley at the end. Yes, I actually have been meaning to send film in. I'll make sure to recommend dr5 to anyone who can figure out what planet your website is from.

JOSarff · Apr 22, 2013

At the risk of going off topic, I use PMK-pyro for Tech Pan with a bleach presoak to make the TP a continuous tone film.

Expose TP for an ISO of 40

bleach (stock solution)
5g Potassium Ferricyanide
3g Potassium Bromide
1 Liter water

for use 5ml of bleach stock in 1 liter of water Pre-soak 5:00
PMK-Pyro Diluted 1:1:100 Develop 8:30
rinse :30
Rapid fix 5:00
Hypo Clear :30
Wash tbd

Givers really nice printing negs with good seperation

Joe

Current options for tech pan development?

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