HI Scott -

Never did Tri-X in Dektol, but I did do Plus-X. You probably know this, 
but if not look up reference for D-72 - pretty similar to Dektol but 
D-72 was marketed as a film developer.

I've only had about a 50% success rate using Dektol - it's high potency 
and fast acting - miss the timing a bit an you get way too dense 
shadows. Sort of like D19, but more potent.

I used it 1:5, at 66 F, for 6 minutes. This is roll film in a small 
tank. Agitated for 10 second after filling the tank, then at 1 minute, 3 
minutes, and 5 minutes.  Rinsed, then stop bath. My goal with the colder 
temps, high dilution, and modest agitation was to get a controlled and 
even development. It still produced a very high contrast neg.

I have an old lab manual here that says dilute 1:1, develop about 5 
minutes without agitation or 4 minutes with agitation for average 
contrast at 68 F (20 C).

They may have been talking about older emulsions, because on my first 
try with that I got a bunch of black rectangles. I went with the more 
dilute and colder mix. Without agitation for roll film you get uneven 
developing.

Two shots using Dektol and Plus-X (Sepia toned in Photoshop) -

http://www.markcassino.com/galleries/asga/asga10.htm

http://www.markcassino.com/galleries/asga/asga11.htm

At best, the negs are very crisp, very clean, no fogging, high contrast, 
snappy almost Rodinal like grain. Good stuff for film but you have to be 
careful - a little too long in the tank and the highlights are totally 
blocked up.

I have a couple packets of Dektol sitting in the basement waiting ot be 
mixed up - man, the K10D really put the brakes on my B&W work. At least 
temporarily.

Have fun!

- MCC

Scott Loveless wrote:
> Do any of you recall how a newspaper darkroom might have developed
> Tri-X in Dektol?  From what I've read it would have been used 1+1 or
> 1+2 for a very short amount of time, 1.5 or 2 minutes, and then
> immediately fixed (skipping the stop).
> 
> I recently acquired a bulk roll of Tri-X that's well past its
> process-by date (thanks, Godders!) and need work around a slightly
> higher than normal base fog.  The first test roll, shot at 400 and
> souped in D-76 1+1, resulted in good acutance, but not enough exposure
> to overcome the fog in the shadows.  So I'm looking at over-exposing
> (IE 200 or so) and developing for a bit more contrast.  Plus, I have
> this Dektol taking up space.....
> 
> Thanks, folks!
> 


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Mark Cassino Photography
Kalamazoo, Michigan
www.markcassino.com
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