TF-5 is a completely new archival rapid fixer with the following features:Great on film and a processing time of only 30 seconds for resin-coated prints, 60 seconds for fiber-based prints, with no hypo clearing agent necessary.
Little or no odor if mixed with distilled or filtered water.
No stop bath necessary. Just use water rinse after developing.
Non-hardening. Excellent for use with prints to be toned or re-touched.
Maintains an alkaline pH throughout the process.
No image bleaching. All conventional acid fixers act as reducers. This means that the longer the material is left in the fixer, the more image silver is destroyed. This can only have bad effects on the image, whether it is a print or a negative. Conventional sodium thiosulfate (rapid) fixers suffer from this defect especially. The problem is eliminated in TF-5, which may offer slightly richer maximum blacks as a result.
TF-5 Is mixed at a 1:3 Ratio