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Box of 25 sheets of 4x5 inch black and white negative film ISO 400

Arista Networks, Inc.

Arista EDU Ultra 400 B&W Negative Film 4x5 25 Sheets

SKU CH-PJBY-4746Z

Black-and-white negative film rated ISO 400, supplied as 25 sheets of 4×5 inch format for large-format cameras

  • ISO 400 sensitivity suits varied lighting
  • 25 sheets per box for extended shooting
  • 4x5 inch format fits large-format cameras
  • Standard black-and-white processing simplifies workflow
  • Compatible with multiple developer formulas

Film Format and Pack Size

Arista EDU Ultra 400 is a black and white negative film supplied as 25 sheets of 4x5 inch format. It is intended for photographers working with large-format cameras who prefer traditional darkroom processing. The pack size supports extended shooting sessions or educational use. Sheet film requires individual loading into film holders before exposure.

Rated Sensitivity and Development Standard

The film is rated at ISO 400 and processed in standard black and white chemistry at 68 Degree F (20 Degree C). Recommended developing times are provided for normal contrast negatives using developers such as Arista 76 Powder, Arista Premium Powder, Arista Liquid Film Developer, Marathon Film Developer, and Ilford ID-11. Correct time and temperature control determine the final negative density.

Behaviour Under Extended Development

Pushing development beyond the recommended times increases contrast and apparent grain while risking highlight compression. The emulsion responds predictably within the standard temperature range but shows reduced latitude if processing temperature drifts significantly from 20 Degree C. Consistent agitation and fresh chemistry are essential for repeatable results across multiple sheets.

Highlights

  • ISO 400 sensitivity suits varied lighting
  • 25 sheets per box for extended shooting
  • 4x5 inch format fits large-format cameras
  • Standard black-and-white processing simplifies workflow
  • Compatible with multiple developer formulas

Specifications

No published specifications for this item yet.

Questions about this item

How does ISO 400 perform when loaded in a 4x5 camera?

At ISO 400 the film gives usable negatives in daylight and indoor light, and can be pushed or pulled during development to match the scene.

Which developing process does this sheet film use?

It processes in standard black-and-white chemistry such as Arista 76, Arista Premium, Arista Liquid, Marathon or Ilford ID-11 at 20 °C.

What holder or tray size fits the 4x5 sheets?

Each sheet measures 4x5 inches, so it fits any standard 4x5 film holder or developing tank designed for that format.

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