Haha, uh, could I get some help?
Ok, I may have been too harsh, but how long does it take to iron the kinks out of it, and why this fascination with coffee developing agents? For one thing the amount of developing agents in coffee varies widely.
i never make this developer without the vit c just because
it works much better ... i have also increase the amount of
vit c to be about 1/2 + a little bit more of the
amount of of vit c compared to washing soda, so for example
instead of 1/4 tsp i would use a little more than 1tsp for your recipe.
did your developer fizz / foam when you finished with the vit c ?
what "brand" coffee are you using?
i have reduced the heavy stain by soaking in wash-water for an extended period of time.
Originally Posted by 4strinbass
I've been developing film since 1965 and I'd never heard of caffenol developer until I joined this forum but them I'm not very adventurous with photo chemicals. I've tried many different commercial brews over the years but I'd guess that 75% of my films have been developed in D76.
Good on those who discovered this technique and those who want to give it a go - what an absolute gem of kitchen table chemistry! It's not often that everyday household ingredients can be cobbled together to replace a commercial chemical product. Is it true that it works best with the cheapest instant coffee? If so a decided victory for the proletariat!
My developer did fizz when I added the vitamin c. I'm using folgers caffeinated instant coffee.
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I use folger's instant too.
Originally Posted by 4strinbass
But I almost forgot - what film is this (sorry if you already listed it)? I recall that there were one or two films which for some reason just don't develop well in caffenol - so that is a possibility.
i totally agree wiht denverdad
you should check out and read both
the caffenol blog and read
the caffenol group at flickr -
while i have used caffenol for a number of
years i don't have the experimental experience the
some of the science-related caffenol junkies tend to have.
you might be able to glean from what you read ( from others
who had the same problems ) or ask questions and get answers.
Last edited by jnanian; 05-09-2011 at 09:27 PM. Click to view previous post history.
My experience with Caffenol, specifically Reinhold's recipes (http://caffenol.blogspot.com/), has been interesting. I found that some films just do not work well with it while others are great with the general trend being that it's good for low/medium speed films but not so good for high speed ones. The variable of coffee also adds complexities in establishing consistent and repeatable formulas. Consider the recipes a starting point and be prepared for some experimentation. Incidentally, if you can source Metol and/or Phenidone, you can use them in place of coffee to make more "standard" developers. This would give you the flexibility to use Caffenol-C where appropriate and use Metol/Phenidone + Vit-C developers for other situations while minimizing cost and chemicals.
Could the addition of rose hips be an issue?