donderdag 26 september 2013

C-41 Cross Process / Agfa CT Precisa 100

C-41 Cross Process / Agfa CT Precisa 100

My first-dia film cross processed with C-41 method
Pentax MX - Agfa CT precisa 100
Tetenal Colortec C-41, 30°C 8 min.

















First time: C41-Processing

C41-Process

New processing method for in my darkroom! 

I ordered a few boxes of Tetenal Colortec C-41 Rapid Negative kits for doing my own color film, dia-film (cross-processing) and Chromogen- film, like Ilford XP.


Because there are so many advices,  different methods, youtube videos etc. etc.  to be found on the internet. I was forced to compose my "own" working method for C41. Without doubt, my working method needs some fine tuning. 

The Tetenal colortec C-41 box contains six flasks with chemicals.
Mixing those chemicals will make the 3 working solutions needed for the C-41 processing.
Colour developer / Bleach fix / Stabiliser

Mixing

For 1000 ml working solution (12-16 films)
  1. Colour developer: 700 ml water / 100 ml part 1 / 100 ml part 2 / 100 ml part 3
  2. Bleach Fix: 600 ml water / 200 ml part 1 / 200 ml part 2
  3. Stabiliser: 900 ml water / 100 ml (Stab).

The standard development is done at 38 °C / 100 °F for 3.15 minutes.
I have chosen for the alternative development at 30°C/86°F for 8 minutes  to create a smaller margin of error.

First warm up the working solutions to 30 °C/ 86 °F.
I purchased a aquarium heater that can heat up my warming bath, and keeps it at a steady 30°C.
Also, I did add 2 bottles filled with water for the pre-heat of the developer drum, and for the short rinse after the CD (colour developer)



Developing at 30°C

  1. Preheat the developer drum with water at 30°C for 2 minutes
  2. Add  the colour developer for 8 minutes. Rotate the first 20 seconds, tumble the can 2 times every 30 sec.
  3. A short rinse for 1 minute, to avoid pollution of the Blix.
  4. Bleach fix for 6 minutes
  5. Rinse for 6 minutes - with 30 °C - 40°C water
  6. Stabiliser for 1.5 minutes 
  7. Final rinse and add a few drops wetting agent (I'm using Amaloco H10)  
  8. Dry (dustproof area)

Note: After developing film, the working solution will get exhausted.
Extent the developing time after developing film with ISO 200 or higher with 20 seconds, less than ISO 200, extend the developing time with 15 seconds.






























zaterdag 14 september 2013

Camera try out: Yashica Mat 124 G (1970)

Another camera try out
New in my collection,Yashica Mat 124 G 6x6 TLR camera
Lens: F:80mm F3.5 Yashinon
Shutter speeds 1 to 1/500 plus B
Crank advance



Film: Ilford HP5+400
Ilfosol 3 (1+9) 6.50 min 










woensdag 4 september 2013

Camera try out: Wray London Stereo Graphic (1955-1960)

Camera try out! 

Wray London Stereo Graphic 35mm

lenses Graflex Graflar 35mm f:4
Stutter speed approximately 1/50 
It makes pairs of 24x23mm pictures at each exposure.

Kodak Tmax 400 ilfosol 3 (1+9) 6 min 20º