Photometry Filters
Explore Chroma’s catalog of photometric filters designed for standardized astronomical measurement and calibrated imaging. These filters support established photometric systems used in research, observatory work, and quantitative astronomy, with precise band placement, high transmission, and long-term spectral stability.
Featured Photometric Filter Sets
Chroma offers matched photometric filter sets aligned to widely adopted astronomical photometric systems. These sets provide coordinated passbands for reliable magnitude and color measurements across observation campaigns.
Bessell UBVRI Filter Sets
Filters matching the Bessell realization of the Johnson–Cousins UBVRI photometric system, commonly used in professional and academic astronomy.
Classic UBVRI Filter Sets
Matched filter sets based on the classic Johnson–Cousins UBVRI photometric system often used in comparative studies and applications where continuity with historical data is required.
Sloan ugriz Filter Sets
Filters designed to match the Sloan Digital Sky Survey (SDSS) ugriz photometric system for calibrated digital photometry.
Individual Photometric Filters
For custom configurations or incremental system builds, Chroma also offers individual photometric filters organized by photometric system.
Bessell UBVRI Filters
Individual filters conforming to the Bessell UBVRI photometric standard, suitable for replacing or expanding existing photometric setups.
Classic UBVRI Filters
Individual filters based on the classic Johnson–Cousins UBVRI photometric system, used in legacy and comparative photometry workflows.
Sloan ugriz Filters
Individual Sloan system filters (u, g, r, i, z) for custom photometric configurations and instrument-specific implementations.
Custom & OEM Astronomy Filters
Chroma works with observatories, researchers, and instrument manufacturers to develop custom astronomy filters and specialized passbands. Options include non-standard sizes, unique spectral profiles, and coatings optimized for long-term stability.
Built for Scientific Accuracy
Photometry filters must maintain spectral accuracy across temperature changes, humidity, and years of use. Chroma’s hard-sputtered coatings are engineered for durability and stability, helping ensure consistent performance for long-term imaging projects and scientific studies.
As an ISO-certified manufacturer, we adhere to strict quality assurance procedures and stand behind this commitment with an industry-leading warranty—our assurance of long-term stability and performance.
Quick References & Education
Learn how to get the best results from your filters:
Technical Library — Application notes, white papers, and guides.
Cleaning & Handling Filters — Best practices to protect coatings and preserve performance.
Filter Orientation Guide — Correct installation of filters and dichroics.
Explore Related Applications
Chroma filters support a wide range of scientific and industrial applications. Explore other areas where our technology enables precision and reliability.
Work With Us
Chroma’s application scientists and engineers support astronomers and astrophotographers at every stage—from selecting catalog filters to developing custom solutions for observatories and instruments.
