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  #11  
Old 12-26-2008, 08:01 PM
Garlic Garlic is offline
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Originally Posted by Caveman View Post
Interesting, you are like Macgyver.
Walau eh, I am honoured man, nolah just play play lor, after all when weather is no good for shooting must keep interest up.

BTW the only stunt, I get close to MacGyver is using duct tape, for the makeshift darkroom to load the film.
I am sure a changing bag is more convenient.

Last edited by Garlic; 12-26-2008 at 09:50 PM..
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  #12  
Old 12-26-2008, 09:26 PM
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Very interesting experiment. I read from somewhere that Vitamin C can also be use as developer. May I know where did you get washing soda?
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  #13  
Old 12-26-2008, 09:47 PM
Garlic Garlic is offline
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Originally Posted by blinded View Post
Very interesting experiment. I read from somewhere that Vitamin C can also be use as developer. May I know where did you get washing soda?
Besides coffee, tea can give the same effect I read. As for Vit C, its normally combined with coffee. Some ppl tried crushing the tablets but is cheaper to get ascorbic acid in powder form from chemical store or health food stores (they might be expensive tho) easier to dissolve.

There are hot discussions into the caffeic acid (as in caffeine) or tannin or even what type of coffee bean does the job better.

Where are you from ?
In Penang - can get washing soda from Gee Tiau Lor.
Or you can ask for them at any chemical stores, if you can find one.
Its not a listed poison like caustic soda.
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  #14  
Old 12-27-2008, 10:00 AM
kiankheong kiankheong is offline
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I have tried formic acid before. If you are familiar with the rubber industry, you can easily get formic acid.
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  #15  
Old 12-27-2008, 10:04 AM
Garlic Garlic is offline
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Originally Posted by kiankheong View Post
I have tried formic acid before. If you are familiar with the rubber industry, you can easily get formic acid.
Interesting, what's the image quality ?
If I remembered it correctly, it has quite pungent smell.
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  #16  
Old 12-27-2008, 11:36 AM
kiankheong kiankheong is offline
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Originally Posted by Garlic View Post
Interesting, what's the image quality ?
If I remembered it correctly, it has quite pungent smell.
The image quality depends on the quality and freshness of the chemical lot.

I was developing slides for silver staining, which is a crude method akin to film developing.

Yeah, the smell is quite pungent. I suppose any weak acid will do.
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  #17  
Old 12-27-2008, 01:10 PM
Garlic Garlic is offline
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Originally Posted by Garlic View Post
Hi folks,

Here is my 1st attempt with the Cafenol recipe (instant coffee + washing soda and hypo to fix) on the Chinese Lucky SHD100 B&W film.
It won't replace the conventional developers for sure.
Its definitely a low contrast developer, but gives the old neg feel to the image.

Next will add some vitamin C to the formula.

What do you think ?

#1
Attachment 36743

#2
Attachment 36744

#3
Attachment 36745
I re-shot some frames but output jpeg from Canon 20d, vs the CR2 above.
Much sharper, I suspect it will be even better on print via scanner.

#4
08DEC_8706.JPG

#5
08DEC_8708.JPG

#6 : cropped to show the details of the grills.
08DEC_8710.JPG
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  #18  
Old 12-27-2008, 06:16 PM
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The newer set looks better. I am in KL. Guess I'll have to hunt for washing soda first.
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Old 12-30-2008, 05:59 AM
prawnsalad prawnsalad is offline
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wow interesting
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  #20  
Old 12-31-2008, 11:26 AM
Garlic Garlic is offline
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wow interesting
Yes if you like B&W images and not satisfied with the digital conversions.
I have done lots of B&W film processing right to printing using the standard off the shelf chemicals - its hard to describe the moment the images appear on the white sheets of 8x10 photographic papers.

At least for this stage, the fun part in seeing the negatives
appear with images on them since I left all my darkroom gear in UK !

The hardest part is getting the developing tank & washing soda, not something you can grab off the supermarket shelves .

If you have a small bathroom/toilet, black it out, its better since the changing bags can get sticky from your sweat and makes loading the film into the plastic reel it can be very frustrating for a 1st-timer especially with 120mm, I did have my moments, unless you are using a stainless steel reel or you can load the film in under 1 minute.

Give it ago and surprise yourself for rewarding start to 2009 !

If it does not work out let us know, so we all can learn.
I might be lucky to get the recipe + process right the 1st time since I am not an alchemist either .

I have some 120 exposed film ready, but will try it with cafenol + Vit. C.
I am also trying to find out what can boost the contrast on the negs, beside going towards the known chemistry recipes, using sodium sulfite, hydoquinone, phenidone,sodium bisulfite, sodium metoborate,metol, etcetcetc.

Ultimately is to come to some concoction with local available material, so that I can confidently re-produce the same B&W results on the large format negatives
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