Quote:
Originally Posted by Photo Engineer  Steve;
Active gelatin is certainly available. It is merely unrefined bovine gelatin made from bones. The problem is the variability that is associated with each batch (high, medium or low ripenining for example) and who is going to test it for the individual.
The companies surely have tests from the 1900s that still work. If you can get them to sell it, fine. I find that there are enough variables to work with that I don't want to add this as well. I find it easier to adapt a formula rather than worry about getting old gelatin.
For that matter, unflavored Knox gelatin off the shelf is probably the 'old style', but IDK. The problem is that it has only about 50% gelatin, the rest being additives. So, you only get a percentage of the gelatin you want.
In my tests, the Knox supermarket gelatin gave very poor results for my emulsions.
PE |
i can get non-oxidised 'activated' photogelatine purpose -made for home -brew coating
$50 for 100 grs
i am not comfortable with that price yet so i haven't ordered any
is the price justifyable? my experience with gelatine home brews is to little for me to make a decision yet
what would a fair price for such a gelatine be? any ideas/input?
the maker uses it himself and i am sure that it is consistent and of a grade that is reliable-his own work is world class
just can't get myself up off of $50 to give it a try since i have so little real experience with home brew gelatine
vaya con dios