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Bague d'extension ZWO 21mm

Bague d'extension ZWO 21mm

SKU:zwo-zwm42_ext21mm

7星以再

常规价格 €21,00 EUR
常规价格 促销价 €21,00 EUR
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ZWO 21mm M42 male/female extension ring

This 21mm thick extension ring allows for easy achievement of the correct distance (back focus) between your ZWO camera and a field flattener.

Most field flatteners require sensor positioning at 55mm. However, with a back focus of usually 17.5mm on ZWO cameras, a 21mm ring is necessary.

Example configuration: ZWO optical divider (16.5mm) + ZWO extension ring (21mm) + ASI071 camera (17.5mm) = 55mm

Black anodized aluminum construction.

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