Astronomik B Deep Sky Filter

The 'B' stands for Blue. This filter is part of a specialized LRGB set designed to isolate the blue portion of the visible spectrum, allowing you to capture accurate color data for deep-sky objects.

Yes. This filter is designed to work seamlessly with most modern CCD and CMOS cameras, including popular models from ZWO, QHY, SBIG, and ALTAIR. It is specifically engineered to align with the sensitivity curves of these sensors.

No, this is a 50mm unmounted round filter. It is intended for use in filter wheels or drawers that accept unmounted glass, which is standard for many advanced astrophotography setups.

Astronomik engineered this filter specifically to minimize internal reflections and halos. By using high-quality glass and precise coatings, it helps maintain sharp, pinpoint star images even when photographing near bright stars.

While it is technically possible, this filter is optimized specifically for deep-sky astrophotography. It is intended to be used as part of an imaging train to capture data for long-exposure composites, rather than for looking through an eyepiece.