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Film roll

Rollei Ortho 25

A slow speed, black and white film available in 35mm.

The Rollei Ortho 25 is a technical, steeply working monochrome photographic film with a nominal sensitivity of ISO 25. The Rollei Ortho 25 is characterized by a high sensitivity reserve of up to two f-stops, depending upon development. The document emulsion offers offers an extraordinary sharpness extreme fine grain. The Rollei Ortho 25 is suitable very well for technical-scientific applications and as a half-tone film in the pictorial photography. The highly clear transparent PET substrate opens the possibility of application as BW slide film also.


  • Orthochromatic sensitised with low speed ISO 25/15
  • Spectral sensitvity 380 -610 nm
  • Special coating for an improvement of the transport properties of the cameras
  • Suitable for daylight and tungsten
  • Polyester base support guarantees the highest level of archive stability (LE 500)
  • Excellent resolving power of 330 lines/mm
  • Extreme fine grain and highest sharpness
  • Non-curling backside coating to improve flatness
  • Especially suited for digital application for scanner
Black & White
Manufacturer website:
Available Film Sizes:

Have a great photo example of what Rollei Ortho 25 looks like? Add your photo here to help other film photographers: Add Photo from Flickr

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forgotten desert by thart2009 (CC BY 2.0)

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2000m - 3 by Eugen Anghel (CC BY 2.0)

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with bicycles by Heinz Wille (CC BY-ND 2.0)

Country Link Extra Info
US 35mm

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