[Leica] 777

[durling at cox.net (Mike Durling)]

I tried some of the MCM-100 like 10-15 years ago. I used it for maybe 
one roll so this is not a scientific review.  When I went back to look 
at the photos they looked pretty mushy to me.  pPD is known as a silver 
solvent which destroys definition.  Apparently the Glycin in 777 
counteracts this. I don't know the exact chemistry.  There isn't any 
glycin in MCM-100.

Don't avoid it based on my say-so, but do let us know how it turns out.

Personally I always wanted to try Edwal 12 or 20.  Both contain pPD and 
some glycin.  They also contain lots of sodium sulfite which also cuts 
definition.

pPD I think is also used in color developers so its not necessarily a 
bad thing.  Once while photographing trains I saw a whole tank car of it 
so it must have plenty of uses.  I think they use it in hair dye too.

Mike D

Richard wrote:
> Jeff, did you download the instructions on the Frugal Photographer site? 
> The directions is pretty clear to me. As for giant tank, I talked to 
> David about that, and he said don't worry about it, the 500ml solution 
> should be fine.
> 
> You want to send me some of yours for starter :-)? Actually, I may order 
> some Formulary MCM-100. It seems to contain the same developing agent 
> p-phenylenediamine. What I am looking for is the long smooth tonal range 
> since the backend of my process is scanning and print. I want to have as 
> much information to work with as possible.