ZWO Darkening ring D88

Darkening ring set for regular EFW

EFW-5*2 / EFW-7*2 / EFW-7*36 / EFW-7*36-II

How to install the darkening sets

Specifications for the darkening sets

External diameter: 88mm. Inner diameter: 55mm (2pcs) & 58mm (2pcs). Thickness: ≤0.2mm. 4pcs in total.

ZWO Darkening ring D90

Darkening ring set for ASI461MM-P set

How to install the darkening sets

Specifications for the darkening sets

External diameter: 90mm(2pcs). Inner diameter: 72mm. Thickness: ≤0.2mm. 2pcs in total.