Arista Liquid Film Developer Issues

Film Photography & Darkroom discussion

Moderator: Keith Tapscott.

nsilberg
Posts: 1
Joined: Sat Sep 04, 2010 11:31 pm

Arista Liquid Film Developer Issues

Postby nsilberg » Sun Sep 05, 2010 12:11 am

I recently purchased a 64oz bottle of Arista Liquid Film Developer (Clayton Chemical) for my photo I class. I mixed the half gallon concentrate 1:9 for stock solution. My students developed several rolls of the same 35mm Arista 400iso film using the "stock" 1:9 solution. Some rolls turned out just fine but some rolls look underdeveloped. My students swear their temperatures (20˚C) and times have been consistent. Although, I assumed that the word "concentrate" meant I could mix the entire bottle (5 gal) to a "stock" solution, so my students would not have to worry about measurements at this point. I am wondering if this so called "stock" solution is really a diluted "working" solution, and has simply exhausted in a period of 7 days. Please tell me this is simply not true. I plan on doing some clip tests tomorrow. I store the developer in a refrigerator @ 11-15˚C. Thanks.


Keith Tapscott.
Posts: 506
Joined: Tue Jan 17, 2006 8:58 am
Location: Plymouth, England.

Re: Arista Liquid Film Developer Issues

Postby Keith Tapscott. » Sun Sep 05, 2010 6:33 am

It's best to only mix enough working strength film developer just before it is required and to store the rest of the developer as the original concentrate.
Use the working strength developer once only and then discard it.

Lowell Huff
Posts: 129
Joined: Thu Aug 19, 2004 6:09 pm
Location: Los Angeles, CA 90061
Contact:

Re: Arista Liquid Film Developer Issues

Postby Lowell Huff » Tue Sep 07, 2010 10:06 am

Clayton Chemical makes ARISTA PREMIUM FILM DEVELOPER (BLACK BOTTLE).
If this is the product that you purchased, contact me and I will make you satisfied with our product.
Lowell Huff
310 538 9530
askus@claytonchem.com


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