Discussion in 'B&W: Film, Paper, Chemistry' started by kbeatty, Jan 12, 2008.
Has anyone tried stand dev with edwal FG7? If so what was your time and dilution.
I've developed with FG7 in the past (results were similar to Ilford Microphen and D-76). I never used it as a Stand Developer or a Minimum Agitation developer. If I was curious, I'd test it at high dilutions (Like 100 to 1 and 200 to 1).
Better IMO, to mix up some Pyrocat-HD.
Thanks for the reply. I don't have any Pyrocat-HD and no Rodinal (good news from my local supplier is that they are getting it again, but I digress). I do have FG7 and love the results at 1:3 and 1:15 but was curious if any one has actually tried FG7 at 1:100 or 1:200 with stand development. Right now I am debating spending the time testing FG7 with water bath dev on HP5 or minimum agitation.
I have used FG7 in the past, don't use it now, but no good reason for not using it. I liked the results when I used it. If you like it then use it and don't worry what others say. If you want to try something else then shoot some test rolls and give it a go. There are no bad products just bad users
I may be guilty of generalizing but I can't see any reason for trying FG7 with stand development.
It's a PQ-type developer and these aren't normally conducive to the compensation or adjacency effects most expect from stand development.
Just a FYI in the book the Negative by Ansel Adams he refers to FG-7 as a standard developer.
The OP asked about stand development. FG-7 originally was a PQ developer - in my experience it gave results that were similar to those I obtained with Ilford Microphen. Looking at the most recent FG-7 MSDS the recipe seems to have changed ( Phenidone is no longer listed as an FG-7 ingredient, and some Pixie Dust has been added to the FG-7 MSDS ingredient list).
FG-7 is not likely IMHO, to be much good as a stand developer.
Better to use Pyrocat or a dilute Glycin or Glycin/Metol developer - or a dilute p-aminphenol developer (like Rodinal).
Edwal FG-7 MSDS
Ingredients CAS # %
Sodium Sulfite 7757-83-7 <19%
Muriatic Acid 7647-01-0 <5%
p-Benzoquinone 106-51-4 <2%
Sodium Hydroxide 1310-73-2 <2%
Hydroquinone 123-31-9 <1%
Got stand and stardard mixed up my bad.
I like getting agitated
I wondered if that was what happened.
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