ZWO EFW FILTER WHEEL 5 x 2" BF25-TT The included filter holder has

The included filter holder has a M48 x 0

This can be useful for astrophotography using cameras with smaller sensors

This 7mm M68 extension tube features a male M68 x 1 thread on one end and a female M68 x 1 thread on the other

8mm visual back

ensuring both optical precision and long-term mechanical stability

ZWO EFW FILTER WHEEL 5 x 2" BF25-TT The included filter holder hasThe Next Generation 2025 ZWO Electronic Filter Wheel 5 x 2" is a major upgrade over the previous generation with a new anti light leak design and refined mechanics for smoother, more consistent rotation. The new 2025 EFW series introduces a series of structural refinements to eliminate light leakage from all directions, including: Upgraded Sealing A re engineered slot fit chassis provides a tighter mechanical interface between the front and rear