Francesco said:The main compartment of the tube is made about 1 or 1.5 inches higher than the film's top edge when fully inserted (film is inserted long side vertical). This would allow one to fill the tube with developer and have the film lying about half and inch or so below the water level. Screw on the tube cap and start the development procedures accordingly.
wfwhitaker said:What kind of "tubes" are we talking about here? Something other than a JOBO drum, it appears.
wdemere said:I'm pretty sure that BTZS tubes (at least the 4x5 tubes I have) are NOT made this way. You must agitate fairly often (roll every 10-15 seconds at the least) or you get nice lines on your negative. I get this effect even when overfilling the cap as much as possible. Though I suppose you could fill the entire tube with developer if you wanted, but that defeats the convenience/purpose of the cap.
Just a warning to those who might try it....
wfwhitaker said:What kind of "tubes" are we talking about here? Something other than a JOBO drum, it appears.
Loose Gravel said:Anybody here doing 'total development' or 'development to completion'. I don't know what to call it. Years ago, Oliver Gagliani told me about his developement of Super XX in exhausted D23. D23 has lots of sulfite, so it dissolves silver. He would put his film in a tank and let it go for a day. He'd get some development and some plating of dissolved silver onto his negative. Always wanted to know more about this.
Francesco said:I use Pyrocat HD 1:1:120 and need only 25 ml of A and B solutions to develop 4 sheets of 8x10 film. The amount of fixer I use is about 1 liter and is poured onto an 8x10 tray. I do not throw the fixer out after one session. I reuse for a few more then replenish with fresh fixer when appropriate.
Regarding the convenience of the cap. I start by filling it with water and then roll the tubes for 5 mins for the presoak. I also use the cap after I dump the developer - I fill it again with water for a 1 minute rinse before removing the negative from the tubes and laying it out on the tray with fixer.
Over 200 sheets of 8x10 developed using minimal agitation and not one unevenly developed.
PROVISO: I would not use minimal agitation for negatives in which sky area comprises more than 50 per cent of the scene. Minimal agitation has a tendency to "smudge" sky areas if there are enough of it (see AZO forum for more on this).
Loose Gravel said:Anybody here doing 'total development' or 'development to completion'. I don't know what to call it. Years ago, Oliver Gagliani told me about his developement of Super XX in exhausted D23. D23 has lots of sulfite, so it dissolves silver. He would put his film in a tank and let it go for a day. He'd get some development and some plating of dissolved silver onto his negative. Always wanted to know more about this.
mark said:I don't know about anyone else but this confuses me. If you are using the tubes with this little amount of solution how long do you let it stand? The least amount of time standing I have read about is ten minutes. This would seem, to me to cause seriously uneven development as I thought the idea was to keep the negative submerged evenly.
Would you mind explaining, in detail, your process.
mark said:I don't know about anyone else but this confuses me. If you are using the tubes with this little amount of solution how long do you let it stand? The least amount of time standing I have read about is ten minutes. This would seem, to me to cause seriously uneven development as I thought the idea was to keep the negative submerged evenly.
Would you mind explaining, in detail, your process.
Donald Miller said:I next pour in the stop bath and screw on the cap and rotate the tube (on it's side) for thirty seconds. Then I unscrew the cap and pour out the stop bath into a container. I remove the tube extender, pull out the sheet of film and place it into the tray with fixer. Obviously the room lights can be on at all times that the tube is capped.
Francesco said:Mark, at a 1:1:120 dilution, that would amount to 25ml of A: 25ml of B: 3 liters of water. My tubes take approximately 1.5 liters of liquid to be full.
mark said:Thanks donald. You had explained this to me before and, if I was not having issues with my tubes I would give it a try with them.
lee said:Loose Gravel,
I got this answer from my friend Frank this AM:
Lee:
You've come to the right person.....I even know the image the guy is
talking about. Oliver made an image of some aspens (I never knew the film
was Super XX -- I thought it was Ansco Versapan) and with only about 1-stop
difference in illumination between the darkest and the brightest areas of
the image, he developed the negative for about 24-hours in used D-23. But
he didn't just let it sit there, it must be agitated constantly for the
first hour, then at about 15-minutes intervals for the next 3-4 hours, and
then once each hour after that. I have seen the negative and it looks
positively silvery on the emulsion side. I have used the technique with
Versapan with good results. When that film was no longer available, I did
the same thing with the old Ilford FP-4. Then came TMax-100, and through
experimentation, I found that 1.5 hours in straight D-76 with 5-ml/per ltr
of 1% benzotriazole would take TMax100 to completion -- several of the
assistants to Oliver (I was an assistant instructor at his workshops in
Virginia City for seven summers in the 1980's) started referring to the
procedure as "Snot Development" -- meaning to develop the snot out of the
film. You can develop the snot out of any film so long as the highlight
densities are building faster than the film base + fog -- IOW's, so long as
you are building tonal range. While I have used this technique with TMax
100 in 120 film size, it does tend to get a bit grainy. For the past
couple of years, I've had very good luck with Ilford PanF Plus in straight
D-76 + the 1% BZ -- it takes very nicely to extreme extended
development.....easily N+4
(which is essentially Snot).
Hope this helps.....
Frank
So there you are....
lee\c
Harvey's Panthermic 777mobtown_4x5 said:What is the best glycin developer?
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