Rollei Ortho 25 120 Single11479

  • Cost:

    • £13.88 inc VAT
    • £11.57 + £2.31 VAT

Rollei Ortho 25 is a technical, orthochromatic black and white photographic film with a nominal sensitivity of ISO 25/15 °.

Rollei ORTHO 25 is characterized by a high sensitivity reserve of up to two f-stops, depending upon development. The document emulsion offers exceptionally fine grain images with high sharpness. Rollei ORTHO 25 is ideal for technical and scientific applications and as a half-tone film for pictorial photography. The crystal-clear RC base opens up the possibility of using the film as a B&W slide film.

Technical and scientific applications:
• reproductions
• reproduction of X-ray images
• astrophotography
• black and white slides and blue slides
• graphic distancing

For this application in particular, we recommend Rollei High Contrast (RHC) developer (1 + 5, 3 - 5 min.). Halftone film for pictorial photography: Rollei Ortho 25 in combination with Rollei Supergrain (RSG) fine grain contrast developer offers the highest standards of sharpness and extreme fine grain. Ortho 25 has also developed a legendary reputation when used in combination with Rollei Low Contrast developer. The results are reminiscent of qualities obtained by a Technical Pan film. The comparatively steep gradation is softened by this special developer. Extreme fine grain and high sharpness, coupled with detailed gray tones can be achieved in this way.

• low-speed orthochromatic black and white film
• spectral sensitivity 380 to 610 nm
• special coating to improve the transport properties of the film in the camera
• suitable for use in daylight and artificial light, without any restrictions
• polyester base with high tear resistance, suitable for archiving LE 500. Extremely high resolving power of 330 line pairs/mm, depending on the developer
• very fine grain and high sharpness as a base for excellent-quality negatives
• ideal for scanning and digital processing


Rollei Ortho 25 120 Single

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