Chroma Sloan g' Photometric Filter
Visit Chroma Sloan g' photometric filter is a precision filter designed to capture the green spectral band (approx. 400-550 nm) for photometric studies using the Sloan Digital Sky Survey (SDSS) system. Used in scientific astrophotography and astronomical research, this filter is ideal for measuring the brightness and physical properties of stars, galaxies and other celestial objects. Its advanced design guarantees optimum transmission and perfect compatibility with modern CCD and CMOS sensors.
Key features
- Spectral transmission:
- Centered on the green band (g') with high transmission around 468.6 nm.
- Effective blocking of UV and IR wavelengths to prevent light interference.
- Sustainable construction:
- Multi-layer anti-reflective coatings to minimize halos and stray reflections.
- Blackened edges to eliminate internal reflections.
- Standard 2 mm thickness, compatible with most filter wheels and optical systems.
- Compatibility:
- Parfocal with other Sloan filters (u', r', i', z'), eliminating the need for refocusing.
- Works perfectly with modern CCD and CMOS cameras, even on high-speed telescopes (f/1.8 to f/4.0).
Sloan filter technology and application
Photometric system filters Sloan Digital Sky Survey (SDSS) filters have been developed to provide precise spectral coverage in five distinct bands (u', g', r', i', z'). Unlike traditional UBVRI filters, Sloan filters are designed with advanced dielectric coatings that offer stable transmission and excellent durability.
The Sloan g' filter is particularly useful for studying young or hot stars, active galaxies or star clusters. It enables precise measurement of magnitude in the green band and calculation of color indices. These data are essential for characterizing the physical properties of celestial objects, such as their temperature, chemical composition or distance.
Applications
- Scientific photometry (Sloan SDSS):
- Precise measurement of brightness in the green band.
- Study of variable stars, supernovae, star clusters and galaxies.
- Advanced astrophotography:
- Perfect complement to other Sloan filters (u', r', i', z') to produce scientifically calibrated data sets.
- Astronomical research:
- Detailed spectral analysis and physical characterization of celestial objects in the green band.
Conclusion
Visit Chroma Sloan g' photometric filter is an indispensable tool for amateur or professional astronomers wishing to carry out precise photometric studies in the green band of the visible spectrum. Its robust design, optimized optical performance and compatibility with modern sensors make it an essential choice for scientific imaging and advanced astronomical observation.
