Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
> C-41 rotary processing - dumb question |
*** Click here for the FADU 2015/2014 Yearbooks *** |
|
Thread Tools | Search this Thread | Display Modes |
#11
|
|||
|
|||
Quote:
My old friend Roger King of King Concepts, former manufacturers of the Image Maker and Enterprise processors in Minneapolis USA, found that Eastman Kodak, Rochester, were using an Enterprise processor for testing ageing samples of negative film from the parent roll in the laboratory with two temperature-controlled pre-rinses, each of 1m30s, before the developer. These samples were therefore processed under highly standardised conditions but a variation in carryover (if the number of films was altered) would also vary dilution, so this technique might not be applicable to pictorial processing. |
#12
|
|||
|
|||
Quote:
|
#13
|
|||
|
|||
Time
Apparently not. It goes against all common sense but intermittent agitation seems to work as well as rotary.
|
#14
|
|||
|
|||
Quote:
I believe, that the latest version, of Flexicolor stabilizer, is formaldehyde free. Stabilizer allows mini lab machines, to operate without a water wash. There are 3 counter-current Stabilizer baths before the film is dried. This is how to get film through a minilab in 7 1/2 minutes. In the US, the Tetenal kits we see are not as nice as what is offered in the EU. Everything is. Developer, Blix, and some sort of crystals, that when dissolved in water, is the final rinse. This stuff tends to re crystallize on the dry film. Nothing at all wrong with using stabilizer as the final bath after washing. Someday I will make it to the UK without my wife taking me to every (quite wonderful) museum. There's a lot more options and shops in Europe, here the internet has wiped out most camera stores. I still pre-rinse, I fill my Jobo CPP-2 with 101F water from a thermostatic mixing valve. I pre heat the solutions in a regular microwave, to get close to 100 in 600mL or the 1L bottles. I'm ready to go in 5-10 minutes. Last night did the same with 3 120 rolls of TMY 2, XTOL stock at 75F, darkroom was at 63F so I warmed up the drum with 2 pre rinses. I love darkroom work, I have been having fun with Fujichrome. I use the Fuji 6X stuff from Europe. I've used the Tetenal kits and have had great results as well. Best Regards from the frigid Great Plains, Iowa City Iowa USA. |
#15
|
|||
|
|||
I agree on all counts.
|
#16
|
|||
|
|||
Thanks MikeH for the comprehensive reply.
Mike |
#17
|
||||
|
||||
Quote:
|
#18
|
|||
|
|||
Home made processor
I would not be too keen on total immersion of a NOVA heater. The end of heating tube with the cable and thermostat is designed to WORK OUTSIDE OF THE WATERBATH....not fully submerged.
Each to their own, but water and mains electricity don't make the best bedfellows. A fish tank heater is submersable, but I would not risk a NOVA heating element even if it had additional waterproofing. |
#19
|
||||
|
||||
Quote:
|
#20
|
|||
|
|||
They mean the tube with the element is fully submersible not the thermostatic housing. In a nova processor the thermostatic adjuster is outside the tank whilst the glass tube is inside. The seal between the tank and the device is a close fitting rubber ring. These are designed for the factory made processors not a home made lash up
If you want to risk electrocution, who am I to stop you? Have you seen the price of a funeral recently! |
Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Time for another question (dumb?) | CambsIan | Photography in general | 6 | 1st September 2017 07:23 PM |
Anyone rotary processing B&W film? | GoodOldNorm | Monochrome Film | 24 | 23rd February 2012 11:55 PM |
Xtol Rotary Processing - Kodak and Ilford Film Differences | Mike O'Pray | Monochrome Film | 11 | 9th October 2011 08:45 PM |
Rotary processing Adox CHS Art 50 | RichardWarom | Monochrome Film | 2 | 20th March 2011 11:17 AM |
New to rotary processing. | Adrian Twiss | Monochrome Film | 9 | 12th July 2010 09:02 PM |