[pure-silver] Re: Same Exposure Different Prints?

     More information on your developing routine would be
 useful.
Enlarger is at end of table, wall directly to the left. The room (box) is 8 foot square. At the center and top of the wall to the left is my red safelight with a 15W bulb. The walls are all unpainted particle board. Some stray light from the enlarger goes up and out, but I don't see much of it bouncing back down. Not much changes, besides my position and posture during exposure, I use a black apron, so don't think I'm reflecting light at the paper during exposure - regardless of where I'm standing when I push the button. The trays are behind me. I take the print, turn and drop into the developer. One hand pushes the sheet down with the tongs so it's all below the surface while the other starts the 1 minute time. I agitate by paddling back and forth with the tongs at one end of the tray, occasionally giving the tray a tilt (this is my least regular part of the routing). At around 5 seconds to I begin to grab the sheet, I pull it out right on 1 minute and let it drip for about 5 seconds, until the stream turns to a few drips. with the same procedure I put it into the stop for thirty seconds, then fix 1 for 30 sec, fix two for 30 sec (I use Ilfrod rapid, 1+9) then a water holding bath, swoosh around for 30 seconds, take out to inspect, then back into the water. Full archival washing steps and solutions used at end of session. 

E.
I had a similar problem, which got worse over time. Eventually, I noticed that during each exposure (not during focusing), the intensity of light varied enough to be seen with my eyes. It would fluctuate quickly, so you might need a fast-responding voltmeter to see it. Funny thing: my backup timer did the same thing. Problem was solved when I got my StopClock. 

Good luck with it,

Kurt Griffin
Tucson
=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your 
account (the same e-mail address and password you set-up when you subscribed,) 
and unsubscribe from there.

Other related posts: