Friday, 30 January 2015

Colour Development - 50ft 16mm (Kodak Vision3 250D)



The Avenue of Trees - Albert park (shot - cloudy setting sun)


 At the same time that I bought the B+W chemicals I also bought a C41 processing kit. Many are available with simplified chemical formulas. I chose the Rollei Digibase C41 Maxi kit. Whilst It says that there is a 2.5ltr working solution there is only enough stabiliser to make up 1ltr, needed to fill the developing tank. The 1ltr kit will only give you half the amount you require (the stabiliser will outlast the other chemical in its useful working life). This kit is good as it can process at 25°C but makes the process time longer (again more controllable for a novice) unlike other kits that must be processed at much higher consistent temperatures only the mixing of the chemicals must be carried out at a higher temp of 49°C. To process the C41 I had to change the lab setup from the established B+W process previously used.

Pretty winter Roses

Since temperature was an issue I insulated the chemical water bath with a thick layer of waste bubble wrap and sat it on a sheet of polystyrene insulation. The film tank must also be sat in a water bath to keep it up to temp during processing, I sat this on top of the chemical water batrh to keep heat in the bucket and escaping heat would help to warm the tanks water bath and so also the tank.
As this seemed like wetter experience than the B+W process  I decided to place the whole setup in the large storage box being used to help control spillages. Following from my experience with the B+W with waiting times I started warming things up first thing. I loaded one of my 50ft colour films into the dev tank and got the ‘dark room’ out of the way. I organised myself and proceeded measure out the chemicals to make 1ltr solutions and to mix them up once I achieved the 49°C in the kitchen sink. First to go into the heated water are the parts A, B and C compnents of the developer and they are mixed together next you asdd the starter which kicks off the chemical reaction to develop.This is the developer mixed. I placed this into the large bucket water bath with the stop bath, the Borax solution and the required number of rinses needed to run the full process.

Greedy Swan


Next I mixed up the bleach, then the fixer and then the stabiliser all of which were also placed in the water bath. Once the chemical bath is down to 25°C the process can begin, the Lomo tank is placed in its water bath of 25°C and is filled with a prewash of water to soften the film and warm everything up to temperature for 3mins before being drained. Now the developer can be poured into the tank at 25°C for 13mins agitating every 30secs. I emptyed the tank into my used developer bottle and filled it back up with a stop bath (optional) before a wash bath for 3mins and drain. I refilled the tank with my bleaching solution for 6mins agitating for 15sec constant and then every 30sec thereafter. This was emptied and refilled with a water bath for 3mins. Next goes in the fix for 7mins and agitate every 30sec empty and wash again for 3min. now I added the borax solution leave in tank for 15min agitate for the last 5mins empty and wash the film again. The tank can now be safely opened, I emptied  the film into a bowl added water and a little wetting agent which aids washing off the remjet. I found  a film end and fed the film into another bowl as I went along cleaning from one end to another filled with clean water,  this id the final wash before the stabiliser. I emptyed the final rinse and then emptyed the stabiliser into the bucket making sure that the film was covered in it for 1.5 mins. 

X-right colour checker
Plastic Duck

















Upon inspection the negative looked good but I placed it onto the drying rack and left it to fully dry before looking at it under the scanner…Wow the images and colours look great. There are a lot of fluffs that have got into the scan bed that can be seen, but the images look good. I really expected it to go badly as a first attempt and am really pleased with the results. I am looking forward to processing more.


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