Pre-Owned - Omega CS-10 Exposure Comparator
The Omega CS-10 Exposure Comparator is a vintage darkroom photography tool used during the film printing process to determine accurate print exposure times under an enlarger. Acting as a specialized light meter or "enlarging meter," it measures the light striking the darkroom easel to help photographers dial in exact exposure times without relying solely on trial-and-error test strips.
Key Features & Mechanics:
Functionality: The device relies on a light sensor (typically a CdS cell powered by a small battery) to analyze local contrast and density from a projected negative. Photographers adjust their enlarger lens aperture until the meter hits a "null" or balanced reading, establishing a baseline for consistent prints.
The Dial Interface: It features a multi-tiered mechanical calculator wheel. The inner dial is marked in fraction-of-a-stop increments (specifically sixth-stops) to allow precision exposure adjustments mathematically or mechanically when modifying print dimensions or enlarger height.
Model ID: Originally distributed by Simmon Omega under part number 464-110.
