**ILFORD Microphen Fine Grain Film Developer**
**Overview**
ILFORD Microphen is a fine grain developer specifically designed to maximize film speed, making it ideal for films that can be push-processed. Optimized for higher exposure ranges, Microphen reduces grain size and prevents clumping due to its low alkalinity.
Unlike most high-speed developers that increase grain size along with film speed, Microphen delivers an impressive speed-to-grain ratio, achieving speed gains while maintaining fine-grain characteristics similar to those of standard developers. With many films, Microphen supports push-processing to speeds up to **EI 3200/36**, such as with **ILFORD HP5 Plus film**.
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**Key Features**
– **Maximized Film Speed**: Optimized for push-processing, allowing for enhanced performance at higher exposure settings.
– **Fine Grain Results**: Special formulation minimizes grain size despite speed increases.
– **Versatile Usage**: Compatible with multiple dilution ratios (Stock, 1+1, 1+3) for flexibility and fresh solution options.
– **Powder Form**: Consistently reliable performance throughout its working life when prepared as a stock solution.
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**Development Times (68°F / 20°C)**
For **Ilford Delta 100 35mm film**:
– **Stock Solution**: 7 minutes
– **1+1 Dilution**: 10 minutes
– **1+3 Dilution**: 15.5 minutes
For **Ilford Delta 400 35mm film (at 400 ISO)**:
– **Stock Solution**: 7 minutes
– **1+1 Dilution**: 10.5 minutes
– **1+3 Dilution**: 18 minutes
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**Processing Capacity**
– **Stock Solution**: Processes up to 10 rolls of 35mm or 120 film per liter.
– **1+1 Dilution**: Processes up to 5 rolls of 35mm or 120 film per liter.
– **1+3 Dilution**: Use as a one-shot solution for individual processing sessions.
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**Storage Guidelines**
– **Unopened Stock Solution**: 6 months storage life.
– **Half-Full Stock Solution**: 1 month storage life.
– **Diluted Solution (1+1 or 1+3)**: Must be used as a one-shot developer; not suitable for storage.
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**Why Choose ILFORD Microphen?**
ILFORD Microphen is the perfect developer for photographers who need to push their films while maintaining fine grain and exceptional detail. Its versatility and consistent performance make it an essential tool for achieving excellent results with both standard and high-speed films.

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