Chroma Luminance L Imaging Filter

A luminance filter captures the full spectrum of light, which helps you gather high-resolution detail and signal-to-noise data that color filters alone might miss. When combined with RGB data, it significantly enhances the clarity and depth of your final image, especially for faint nebulae and galaxies.

This filter is optimized for focal ratios of f/4 or slower. If you are using a faster system, you may experience performance issues or shifts in the spectral bandpass.

By using a single substrate rather than laminated glass, the filter avoids the internal reflections and potential delamination issues that can degrade image quality over time. This design ensures a cleaner, more durable optical path.

The sputtered hard coatings are exceptionally durable and resistant to environmental wear, making them much more robust than traditional soft-coated filters. You can clean them using standard optical cleaning procedures, though you should always use a high-quality lens cloth and fluid.

The filter features specialized anti-reflection coatings on the rear surface specifically designed to minimize internal reflections and ghosting. This ensures your images remain crisp even when bright stars are in the field of view.

No, the filter is engineered for spectral stability. Its performance remains consistent regardless of fluctuations in temperature or humidity, so you won't need to worry about your focus or color balance shifting throughout the night.