billdlv, The Rollei instructions are at best misleading. I am sure that the 25ml will make 2 x 250ml working solution. The 20 roll kit makes 1000ml working solution but i believe both kits are made to make two sets of working solution therby the confusion about the qty in each.
The 10 roll kit = 2x250ml
The 20 roll kit = 2x500ml
Anybody have times for 1 stop push? Did not see in the instructions.
3:45, 4:15 for a two stop push, per Kodak's Z-133
It depends on the film a bit, as some color negs push more easily than others. Kodak sez add 30 seconds for a one stop push of Portra 400 and 800, and add a minute for a two stop push of these films.
So far i have not had a need to push the speed of color negative film, how does shadow details hold up and how does grain look like?
You can't really change the sensitivity of the emulsion ("push the speed") with development. You can just add contrast. Shadow detail captured on the film depends solely on the interplay of subject brightness range (A.K.A. luminance range) and exposure (f stop, shutter speed, and film speed). You cannot add anything that was not captured in the first place.
JLP you have me a bit worried that I mixed the working solutions incorrectly, so please bear with me. For clarification I purchased the small 10 roll kit.
For the developer, parts A,B,C there were 50 ml of each solution. The starter solution was 10 ml. I mixed 345 ml water, 50 ml A,B,C, and 5 ml of the starter. This works out to 500 ml, or 2X 250ml. The capacity of this working solution at best would be 10 rolls according to the "distructions".
For the bleach there was 140 ml of concentrate, mixed with 360 ml of water gives 500 ml working solution with capacity of 14 rolls.
For the fixer there was 100 ml of concentrate, mixed with 400 ml gives 500 ml working solution with capacity of 14 rolls.
Now for the stabilizer, there was 25 ml of concentrate, which would have been mixed with 250 ml of water for a capacity of 15 rolls. This is where I am confused, if this was following the other concentrates there should have been 50 ml to make 500 ml. Based on what I am reading on the instructions, the kit only has 250 ml of solution available, but you should be able to get enough rolls out of the working solution to match the other chems. My problem is that I have a jobo 1520 which I use inversion agitation. So 250 ml is not enough, it needs 485 ml. However I could roll it in which case I only need 240 ml. I'm not worried about rolling since that is not going to affect the image development.
Now I need to get some of the stabilizer, I see the Kodak stuff but it is going to run about $12 and be way more than I need. I might get another kit or just forgo the stabilizer I don't shoot that much color C-41, mainly E-6 and B&W. I've read the forums a bit and found a recipe for mixing it yourself using formalin and photoflow. It seems though that the new stabilizers are not formaldehyde based according to the msds for the rollei kit and the Kodak info on the website for the flexcolor stabilizer?
As for the push 2F/2F spells it out, in my simple mind I think of it as giving whatever got exposed with light on the film more time in the developer since I gave it less exposure that what it needed to be rated at box speed. In my experience color grains less that B&W and you don't get as much shadow detail had you shot the same image with more sensitive film to start. I don't know of any 1600 speed C-41 film, I am shooting in low light without flash. I'm using Fuji Superia 800.
Originally Posted by Antix818
I would like to clarify the capacity of Digibase C41 Kits.
# RDC14, Digibase C-41 MINI KIT for 0.5 Liter (16.90 US Fluid O), capacity: 10 (400/27°) - 12 (100/21°) films.
# RDC15, Digibase C-41 MIDI KIT for 1.0 Liter (33,81 US Fluid O), capacity: 20 (400/27°) - 24 (100/21°) films.
For US customers: Both Kits are available by Freestyle LA.
In February 2011 Freestyle will offer a additional Kit:
# RDC16, Digibase C-41 MAXI KIT for 2.5 Liter (84.53 US Fluid O), capacity: 50 (400/27°) - 55 (100/21°) films.
At the moment not offered by Freestyle LA:
# RDC17, Digibase C-41 MAXI SUPER KIT for 5.0 Liter (169.07 US Fluid O), capacity: 100 (400/27°) - 110 (100/21°) films.
This is a complete C-41 processing kit, like RDC14; RDC15; RDC16.
Components of the modular color chemistry system Digibase C-41:
At the moment not offered by Freestyle LA:
#RDC01FA C-41 Color Dev. Part A, 1000ml (33,81 US Fluid O) concentrate, up to 200 films.
#RDC01FB C-41 Color Dev. Part B, 1000ml (33,81 US Fluid O) concentrate, up to 200 films.
#RDC01FC C-41 Color Dev. Part C, 1000ml (33,81 US Fluid O) concentrate, up to 200 films.
#RDC01FS C-41 Starter, 100ml (3,38 US Fluid O).
#RDC01BA C-41 Bleacher, 1000ml (33,81 US Fluid O) concentrate, up to 400 films.
#RDC01BB C-41 Fixer, 1000ml (33,81 US Fluid O) concentrate, up to 400 films.
#RDC01S C-41 Stabilizer, 100ml (3,38 US Fluid O) concentrate, 400 films.
Another question has been the working solution of the stabilizer.
The stabilizer can be used twice. (Without agitation!)
With kind regards,
Will the 5 liter kit/independent chemicals be picked up by freestyle later on as well?
That's great information!
Originally Posted by Rollei-Film