Technical Pan

Although some of its particularities were unique and no emulsion in actual production could replace it, its resolution capabilities were surpassed by another film by ADOX, CMS 20 II.

Tech Pan or Technipan, as it is often known, was very popular among some professional photographers and astronomers, as it is capable of recording extremely fine detail, and its sensitivity curve extended much further into the red than most films.

In particular, it was very sensitive to light emitted by hydrogen at 656.28 nm (H-alpha), which made it very useful for a wide range of astronomical imaging.

The film was popular with photographers in the art and fashion industries for its extremely high-contrast results when up-rated and processed in an abrasive, high-strength developer.

The 2415 Film is available in both 35 mm and 4 x 5-inch sizes; it has a dimensionally stable 4-mil (100 μm) ESTHAR-AH Base with a built-in 0.1-density dye that suppresses light piping.

Image of comet C/1996 B2 ( Hyakutake ), taken on 1996 March 25, with a 225 mm f /2.0 Schmidt camera (focal length 450 mm) on Kodak Technical Pan 6415 film. Exposure 0:23 to 0:33 UTC (10 minutes). The field shown is about 6.5°x4.8°. Note the prominent disconnection event in the comet's ion tail. Stars in the image appear trailed, as the camera tracked the comet during the exposure.
An unused roll of Kodak Technical Pan 35 mm film.