For observatories building out a system incrementally or replacing a single band, each filter in the Sloan ugriz set is also available on its own.
Matched u, g, r, i, and z filters designed to match the Sloan Digital Sky Survey (SDSS) photometric system, for calibrated digital photometry.
Ultraviolet band filter matching the Sloan Digital Sky Survey (SDSS) photometric system.
Green band filter matching the Sloan Digital Sky Survey (SDSS) photometric system.
Red band filter matching the Sloan Digital Sky Survey (SDSS) photometric system.
Infrared band filter matching the Sloan Digital Sky Survey (SDSS) photometric system.
Infrared band filter (900nm+) matching the Sloan Digital Sky Survey (SDSS) photometric system.
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 ann industry-leading warranty, our assurance of long-term stability and performance.
Chroma also offers matched sets for other widely used photometric systems, for observatories running comparative studies or working in the Johnson-Cousins system.
Matched filter set for the Bessell realization of the Johnson-Cousins UBVRI photometric system, commonly used in professional and academic astronomy.
For observatories, research programs, or instrument builds outside the standard Sloan specification, Chroma develops custom photometric filters with non-standard center wavelengths, bandwidths, sizes, or coating requirements.
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.
Chroma filters support a wide range of scientific and industrial applications. Explore other areas where our technology enables precision and reliability.
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.
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