Because of a major FUBAR by Adorama losing my original equipment I sent for a trade in value, I now have a never opened Lee10 stop Big Stopper, 4x6 .9 GND & .6 GND filters and the Lee 100 Filter holder deluxe kit, plus 5 slightly used Lee filter ring adapters: 58mm, 62mm, 67mm, 77mm and 82mm...
This is a shot of a local paper mill that closed its doors yesterday after more than 75 years of constant operation...
D850, ISO 200, f/8, 6 seconds, 720 Nano IR filter
First is a five- frame, vertical format shot
D850, 14-24 @17mm, ISO 600, 15 sec
Secon shot is a single frame, same settings - the big difference is in the pano, Venus is just above the horizon and in the full frame, significantly above.
I ran across some notes I made while taking a class in "old" processes with Al Weber and David Vestal. It is a means by which you can get very good results from expired paper.
The additives you would be interested in are bromide and carbonate. Potassium Bromide will clear the whites. (reduce...