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Photographers' Formulary DK-25R Fine Grain Film Developer, Replenisher, Makes 1Lt Solution

SKU: PYDK25RP1LT MFR: 01-0057
$13.95
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Key Features

  • Achieve exceptional image quality with Photographers' Formulary DK-25R film developer!
  • Enjoy archival properties; your developed films will last for generations to come.
  • Experience consistency in every batch; reliable results with each use of this developer.
  • DK-25R is known for ease of use, making film processing simple for all skill levels.
  • Simple mixing ratios; this Photographers' Formulary solution makes 1 liter of developer.
  • Benefit from a long shelf life, ensuring your black and white chemicals are always ready.
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Special Order?Estimated to Ship: 08/22/2025

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Questions & Answers

Reviews about this item

Review Summary

2022-03-23T08:24:46

Rated 5 out of 5

I say give it a try

Excellent stuff. Easy to mix and use. A great way to get a different look from your black and white film. May not be everyone's cup of tea, but definitely worth a try for experimentation's sake and to try and get closer to your artistic vision as a film photographer

SAUL G.

2020-08-04T08:53:02

Rated 5 out of 5

One of the best developers out there...

Fantastic developer, simple to use, great results. It really brings out detail like no other. Highly recommended.

MARVIN J.

2020-03-20T10:21:41

Rated 5 out of 5

Formulary Pyrocat HD

What pyrocat does to the light is like no other developer. It is my go to developer Excellent product...Thanks!

STEVEN Z.

2019-05-02T08:54:11

Rated 5 out of 5

I've had good experiences with Photographer's Formulary products since 2012

This time I bought my Pyrocat-HD in Glycol from Adorama for convenience sake. I've had good experiences with Photographer's Formulary products since 2012 and have had consistent success with them. "Shiprock" was developed using a dilution of 1.5:3:100 in a Jobo 3005 Expert drum and a Jobo CPP3 processor operated at 55 RPM.

CHARLES D.

2018-05-23T10:16:26

Rated 5 out of 5

A Great Developer

I've used Pyrocat MC in a Jobo for a number of years. I get good results on a wide range of films. The staining effect contributes to fewer printing steps. Highly recommended.

Jim N.

Photographers' Formulary Film Developer Specifications

  • Used For

    Photographic Processing

  • To Make

    1Lt Solution

  • UPC Code

    675152100573

About Photographers' Formulary Film Developer

FEATURED REVIEWS

I've had good experiences with Photographer's Formulary products since 2012

By CHARLES D.

This time I bought my Pyrocat-HD in Glycol from Adorama for convenience sake. I've had good experiences with Photographer's Formulary products since 2012 and have had consistent success with them. "Shiprock" was developed using a dilution of 1.5:3:100 in a Jobo 3005 Expert drum and a Jobo CPP3 processor operated at 55 RPM.

I say give it a try

By SAUL G.

Excellent stuff. Easy to mix and use. A great way to get a different look from your black and white film. May not be everyone's cup of tea, but definitely worth a try for experimentation's sake and to try and get closer to your artistic vision as a film photographer

What sets the DK-25R Fine Grain Film Developer and Replenisher apart is its high-quality formulation, designed by the reputable brand, Photographers' Formulary. This professional-grade product is specifically engineered to extend the capacity of D-23 or D-25 film developers from 4 to 25 rolls per liter, making it an effective and reliable solution for all your film development needs.

As a film developer is utilized, its action tends to weaken due to the chemical reduction of the exposed silver halides in the emulsion and the release of bromide ions into the solution. This can result in a decrease in the effective film speed and lower contrast. However, the DK-25R Fine Grain Film Developer and Replenisher is designed to counteract these effects. By adding this replenisher to your developer, you can ensure normal developer activity and partially offset the effects of the increased bromide concentration.

This durable product boasts a shelf life of six months, providing you with a long-lasting solution for your film development needs. With its high rating and positive reviews from customers, the DK-25R Fine Grain Film Developer and Replenisher is a testament to the quality and reliability that Photographers' Formulary is known for in the photography industry.

Photographers' Formulary Film Developer Features

  • High-quality DK-25R Fine Grain Film Developer and Replenisher by Photographers' Formulary
  • Extends the capacity of D-23 or D-25 film developers from 4 to 25 rolls per liter
  • Ensures normal developer activity and counteracts the effects of increased bromide concentration
  • Long-lasting solution with a shelf life of six months
  • Highly rated and positively reviewed by professional photographers
  • Ideal for maintaining effective film speed and contrast in fine grain film development

Key Features

  • Achieve exceptional image quality with Photographers' Formulary DK-25R film developer!
  • Enjoy archival properties; your developed films will last for generations to come.
  • Experience consistency in every batch; reliable results with each use of this developer.
  • DK-25R is known for ease of use, making film processing simple for all skill levels.
  • Simple mixing ratios; this Photographers' Formulary solution makes 1 liter of developer.
  • Benefit from a long shelf life, ensuring your black and white chemicals are always ready.