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A 5-litre plastic jug of liquid photographic developer labelled Arista Premium #6874

Arista Networks, Inc.

Arista Premium Liquid Paper Developer 5 L #6874

SKU CH-B84K-EX46T

A phenidone-based liquid print developer yielding pure blacks, bright whites and wide tonal range, non-staining and metol-free, supplied in a 5 L container

  • Achieve pure blacks and bright whites with phenidone-based formula
  • Non-staining, metol-free chemistry ensures clean processing
  • Liquid format enables easy mixing for all skill levels
  • Suitable for machine processing with .15 ml per square inch replenishment
  • Flexible dilution from 1:4 to 1:9 for economical use

Premium Liquid Paper Developer

The Arista Premium Liquid Paper Developer is a phenidone-based chemistry formulated for black-and-white photographic prints. It produces deep blacks, bright whites and a broad tonal range while remaining non-staining and free of metol. The liquid concentrate simplifies mixing and handling for darkroom users at any experience level.

Capacity and dilution headroom

Supplied as a five-litre concentrate, it is diluted from 1:4 up to 1:9 depending on economy and time requirements. Higher dilutions extend developing times and can modify contrast characteristics. Replenishment for machine processing is calculated at .15 ml per square inch of paper processed.

Machine processing constraints

The developer is designed for continuous machine workflows where replenishment rates maintain consistent activity. Dilution flexibility allows cost control but demands careful time management to avoid under- or over-development. It is not suited for processes that require metol-based chemistry or staining developers.

Highlights

  • Achieve pure blacks and bright whites with phenidone-based formula
  • Non-staining, metol-free chemistry ensures clean processing
  • Liquid format enables easy mixing for all skill levels
  • Suitable for machine processing with .15 ml per square inch replenishment
  • Flexible dilution from 1:4 to 1:9 for economical use

Specifications

No published specifications for this item yet.

Questions about this item

Can the 0.15 ml replenishment rate work with my existing print processor?

The developer is suitable for machine processing and replenishes at 0.15 ml per square inch of paper, so it will work with any processor that can be set to that rate.

How do I know the dilution is mixed correctly after setup?

Start with the recommended 1:4 dilution; the liquid form mixes easily and the working solution should produce deep blacks and bright whites with normal contrast.

Does the 5 L container include a measuring cup or do I need one?

The product is supplied as the liquid developer only; a graduate or measuring cup for the 1:4 to 1:9 dilution must be purchased separately.

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