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Doc Henry

I like film...(open thread)

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27 minutes ago, Sparkassenkunde said:

Before this thread gets too salty from my latest contributions I strew in some regular pictures made with well known emulsions. Here comes just a field, seen in Croatia. I love the way the evening sun lights the field:

M4-P - Cron 35 - Agfa CT 100 Precisa

Really nice composition and colour contrast between sky and fields. 

I've heard that it can be a bit dangerous going off piste due to land mines.

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23 minutes ago, Sparkassenkunde said:

Viewpoint in Motovun - Croatia:

 

I really like the paintery feel to this one James; the gold tones on the interior walls are a nice highlight.

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Nice dryer! Well done...
Although i had never dust problems drying my films hanging in the shower over night

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On 8/5/2019 at 12:12 AM, MT0227 said:

I was thinking of doing this in some fashion so I don't have to wait as long in between development runs.   Did you simply divide the weight of each powder by 8 and dilute each mixture by 1/8 of the water?   Thanks.

Sorry for the delay in responding. Been doing 'things'.

Here is a summary of how I divide the powders up:

UNICOLOR  RATIOS

To make 2 litres of working solution:
Developer pack = 132.6gm.
Blix pack A = 323gm.
Blix Pack B = 164gm.
Stabilizer pack = 9.98gm.

My recipe:
My processor requires 170ml of working developer for 1 - 35mm x 36 exp.
Unicolor calls for 2000ml water to mix with 132.6gm Dev powder.
So, dilution ratio = 2000/170 = 11.76 (say 11.8)
Therefore: 1600/11.8 = 136ml water , to which I add
Dev powder: 132.6/11.8 = 11.3gm. and then
Water to make 170ml.
Dev time = 3' 35" @ 38 Deg C.
Same ratio for dividing up Blix and Stabiliser.

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33 minutes ago, erl said:

Sorry for the delay in responding. Been doing 'things'.

Here is a summary of how I divide the powders up:

UNICOLOR  RATIOS

To make 2 litres of working solution:
Developer pack = 132.6gm.
Blix pack A = 323gm.
Blix Pack B = 164gm.
Stabilizer pack = 9.98gm.

My recipe:
My processor requires 170ml of working developer for 1 - 35mm x 36 exp.
Unicolor calls for 2000ml water to mix with 132.6gm Dev powder.
So, dilution ratio = 2000/170 = 11.76 (say 11.8)
Therefore: 1600/11.8 = 136ml water , to which I add
Dev powder: 132.6/11.8 = 11.3gm. and then
Water to make 170ml.
Dev time = 3' 35" @ 38 Deg C.
Same ratio for dividing up Blix and Stabiliser.

Thanks Erl....I really appreciate this,  I'm following you up to this part: 

Therefore: 1600/11.8 = 136ml water ......should't that be 2000/11.8=169.5 of H2O?

So...if I think I have it right:   My JoBo tank can do 2 rolls of 36 with 240ml of developer using continuous rotation ...so I would use  2000/120=16.7 as the dilution ratio for the H2O and all the developer packs (developer, blix and stabilizer) for a one shot per roll mix.   I'm definitely going to give this a try to reduce waste and development delay times of having to accumulate enough exposed film to make is cost worthy. 

 

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The instructions say, mix in 1600ml of water, and then to ADD water to make 2000ml.

I really don't think it makes too much difference actually. individual differences have more influence IMO.

Here is a link to the chart I prepared for myself.

 

C-41 Colour Film Dev Dilutions 2019.pdf

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My calculations allow me to process 12 rolls, in my own time, at an approx cost of $7/roll for the way I have to buy the chemistry.

Benefits: Faster turnaround and better quality than lab processing.

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11 minutes ago, erl said:

My calculations allow me to process 12 rolls, in my own time, at an approx cost of $7/roll for the way I have to buy the chemistry.

Is it difficult to buy the chemicals?

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Posted (edited)
12 minutes ago, pico said:

Is it difficult to buy the chemicals?

Look for : Ultrafine Unicolor C-41 Powder Developer Kit (2 Liter) on Amazon.

Edited by MT0227

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7 minutes ago, pico said:

Is it difficult to buy the chemicals?

In Australia, yes. Retailers are the only ones (apparently) that can air freight liquids! 😕

Tetenal, the best manufacturer recently went bankrupt, but at the eleventh hour was bought out by the management and staff to form a new company that is just starting production again. Their small packs are all liquid. Currently I am using Unicolor pwdedr chemicals but am anxious for Tetenal to become available again because of easier/faster prep of the developers. I think in the US you will have far better options. eg. See B&H.

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34 minutes ago, erl said:

In Australia, yes. Retailers are the only ones (apparently) that can air freight liquids! 😕

Tetenal, the best manufacturer recently went bankrupt, but at the eleventh hour was bought out by the management and staff to form a new company that is just starting production again. Their small packs are all liquid. Currently I am using Unicolor pwdedr chemicals but am anxious for Tetenal to become available again because of easier/faster prep of the developers. I think in the US you will have far better options. eg. See B&H.

B&H is store pickup only for chemicals ....I was able to get the powder shipped via Amazon

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