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Our latest EFW (Electronic Filter Wheel), larger than the previous but still low on weight. Only 400 grams (14 oz)!The body is CNC milled from an a...

The smallest and most lightweight 1.25″ Electronic Filter Wheel in the world!300g ONLY ! Small than your hand !The body is CNC machined from a full...

The New filter Drawer for EOS Lens，26.5mm thickness is independently designed by ZWO and specifically made to match with ASI cooled cameras and EOS...

New filter Drawer with a thickness of 29mm that can be used for carrying 2” filter and connecting ASI cooled cameras to Nikon Lens.It is compatible...

Easily switch 2" mounted filters Eliminates light leaks Compatible with most 2" mounted filters Optical length of 21mm Description Specificatio...

Easily switch 2" mounted filters Eliminates light leaks Compatible with most 2" mounted filters Optical length of 20mm Description Specificatio...

Additionnal 2" filter holder for your ZWO M42 V2 filter drawer. It is not compatible with older filter drawers.

The new ZWO LRGB Filters are designed to approximately equalize the flux of ASI1600 mono sensorBetter transmission, Better coating, Better color...

Narrowband filter does not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast ...

Narrowband filter does not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast ...

Narrowband filter does not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast ...

Narrowband filter does not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast ...