Hi,
I used my 1910-ish half-plate camera for the first time yesterday. I'm awaiting film for it, so I made up a 4 x5" adaptor so I could test a new shutter blind and see what the image from the Taylor Hobson R.R. lens looked like. I developed the Foma 200 negative using a 2" dia. x 6 1/2" long tube with endcaps. I've developed six negatives from my 4x5" Sanderson this way without any major problems, but on this latest one a corner of the negative has turned grey with a clear halo. I'm not sure whether to go looking for light leaks or if it occured during development.
I leave the neg in the tube until it is fixed, so I don't know what stage of the developing the area appeared. I haven't yet painted the half-plate to 4x5 adaptor, so there is some shiny aluminium/aluminum behind the negative. The dev & fix are Adox Atomal 49 & Adofix P11. I mixed a litre of each 27 days ago. The stop is 2% diluted white vinegar. I have been transferring the film from the DDS into the tube and then pouring the dev into the tube through a funnel. This is done in a walk-in cupboard and then I take the tube to the bathroom where the blackout isn't as good. The bottom of the neg is usually above the level of the dev, but perhaps on this occasion the corner of the neg moved in the tube. I think it was a few minutes before I shook & then started rolling the tube. Would too long without agitation cause this result ? Thanks for any suggestions.
Other than this issue I'm encouraged with the initial results.
Nick
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