BR205 Benro Polaris Astro Module for BR203 2-axis Head astronomy telescope ota The ZWO 2" H-alpha 7nm

The ZWO 2" H-alpha 7nm Narrowband Filter is designed to dramatically improve deep-sky image contrast and detail by isolating the 656 nm hydrogen-alpha emission line—the dominant wavelength emitted by many nebulae

75 2” filter thread

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BR205 Benro Polaris Astro Module for BR203 2-axis Head astronomy telescope ota The ZWO 2" H-alpha 7nmBenro Polaris Astro Module for BR203 2 axis Head This is the 3rd axis for the 2 axis Benro Polaris Head Note: The tripod stand, mobile phone and camera are not included. The Benro Polaris Astro Module allows users of the Timelapse 2 Axis Head to upgrade and benefit from the Astro features of the Benro Polaris. The Astro Module fits in the quick release clamp of the Polaris, and features a rotating Arca clamp for star tracking. The Astro Expansion Kit