The is a compact, fully automatic film processor designed to streamline the analog development process for hobbyists and professionals alike. Developed by Osiris Film Technology in China, it serves as a modern, affordable alternative to large-scale commercial lab equipment. Key Features and Technology
Osiris is not Kodak. You cannot buy this at your local drugstore. It is a specialty import. A 500ml kit costs roughly $30-$40 USD and lasts for about 15-20 rolls (at 1+1+100). D-76 costs $12 for 40 rolls.
Also, shelf life. Because it’s ascorbic acid based, once you open the bottle, you have about 6 months. It oxidizes faster than phenidone-based developers. If you shoot one roll a month, stick to Rodinal. If you’re a heavy shooter, F1 is fine. osiris f1 film developer
The is a compact, automatic film processing machine designed by Osiris Film Technology in Wuhu, China . It is intended for at-home use, providing a "foolproof" alternative to professional labs or manual darkroom setups . Key Features and Technology
But every so often, a niche chemist or a small-batch manufacturer releases something that makes you question why we all settled for the standard formulas. is one of those developers. The is a compact, fully automatic film processor
Customizable programs that can be tailored for unique black-and-white developing times or experimental processes. Why Choose the Osiris F1?
This is the magic dilution. Times stretch to 10–14 minutes. What happens here is that the developer exhausts itself in the highlights while continuing to work in the shadows. If you shoot high-contrast scenes (sunny beaches, stage photography, neon at night), this dilution saves your highlights. You will get printable detail in clouds and skin tones while Zone III stays rich. It’s like having an automatic dodging tool in liquid form. You cannot buy this at your local drugstore
, a small community of users has shared a "love-hate" relationship with the device. Performance
The grain signature is perhaps the most defining characteristic. With modern 400-speed films like HP5+ or Tri-X, Osiris F1 renders grain so fine that it rivals 100-speed films developed in standard chemistry. This makes it an ideal partner for "pushing" films. If you need to shoot HP5+ at ISO 800, developing in Osiris F1 can help mitigate the contrast blow-out typically associated with pushing, keeping the grain manageable and the tonality pleasing.