The only Powder Rapid Fixer for any paper or film but optimized for T-grain films! Cinestills F96 B&W + Bleach Bypass Rapid Fixer Powder is the world’s only powder rapid fixer also happens to be the most potent. So potent in fact that you have to further dilute 1 liter of working solution to 2 liters in order to match liquid concentrate rapid fixers. We use the purest ammonium thiosulfate agents to fix your film and make it archival in record time. Just add water! Reusable solution fixes 24+ rolls of B&W or color film and can be diluted to make 1-2 liters of working solution fixer for the traditional 2-bath B&W process or Bleach-Bypass color process. Bleach bypass is a process of either a partial and skipping the step of bleaching during processing of color films. By doing this, silver is retained int eh emulsion along with color dyes. The result is a black and white image over a color image. The images usually have reduced saturation along with increased contrast and graininess. T-grain films and bleach bypassed color film require Rapid Fixer (ammonium thio) to fully clear the color dyes. Standard cubic-grain films finish fixing in as little as 1-2 minutes! Washing of films is also exceedingly fast, due to the rapid absorption rates of ammonium thiosulfate in emulsions.