BZT, added to your paper developer will also cool down the image tone. Again, add 15mls to start, and increase to the amount required or until any base fog becomes noticeable.
Product instruction sheets
BZT - Paper developer additive.
BZT (benzotriazole) is renowned as a reviver of old papers, removing any fog. Add 15mls to your paper developer. If your paper is very old or fogged, you may need to add more. Add 5 mls at a time until the fogging has gone. Don't add too much; this will induce fogging!
BZT, added to your paper developer will also cool down the image tone. Again, add 15mls to start, and increase to the amount required or until any base fog becomes noticeable.
BZT, added to your paper developer will also cool down the image tone. Again, add 15mls to start, and increase to the amount required or until any base fog becomes noticeable.