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Box of Rollei RPX 25 4x5 inch black and white film 25 sheets

ROLLEI

Rollei RPX 25 ISO 25 4x5 inch 25 Sheets #81045

SKU CH-Q6NJ-19460

Low-speed ISO 25 panchromatic black-and-white negative film delivering fine grain and high acutance in 4×5 inch sheets, 25 per box

  • Exceptional detail capture from ISO 25/15° sensitivity
  • Ultra-fine grain structure delivers smooth tonal transitions
  • High resolving power produces sharp large-format images
  • One f-stop exposure latitude aids development flexibility
  • Crystal-clear base ensures optimal contact printing clarity

Rollei RPX 25 ISO 25 4x5 inch film

Rollei RPX 25 is a low-speed panchromatic black and white negative print film supplied in a pack of 25 sheets. The product is intended for photographers who work with 4x5 inch large-format cameras and want maximum detail. Its nominal sensitivity is ISO 25/15deg.

Suited for fine-grain work, not high-speed needs

This film suits photographers who prioritise extraordinarily fine grain, great resolving power and high acutance over speed. The thin, silver-rich emulsion on a crystal-clear base delivers an excellent balance between image quality and speed yield. Photographers who need a faster nominal sensitivity for low-light or action work should look at something else.

ISO 25 nominal sensitivity decides suitability

The single specification that decides whether this is the right part is the nominal sensitivity of ISO 25/15deg. This low speed demands bright lighting or long exposures and precise development control to exploit the one f-stop sensitivity reserve. If your workflow requires a higher box speed, this film will not match those requirements.

Highlights

  • Exceptional detail capture from ISO 25/15° sensitivity
  • Ultra-fine grain structure delivers smooth tonal transitions
  • High resolving power produces sharp large-format images
  • One f-stop exposure latitude aids development flexibility
  • Crystal-clear base ensures optimal contact printing clarity

Specifications

No published specifications for this item yet.

Questions about this item

What developer is recommended to process this ISO 25 film?

The supplier recommends Rollei RPX-D Developer for processing the RPX 25 film to achieve the stated fine grain and high acutance results.

Can I load these 4x5 inch sheets into a standard large-format film holder?

Yes, the 4x5 inch sheet size matches standard large-format film holders, so they fit directly without any adapter or modification.

How can I confirm the film is exposing correctly after development?

Check the processed negatives for the extraordinarily fine grain and high acutance described; a thin, silver-rich emulsion on a crystal-clear base indicates proper exposure and development.

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