ZWO Darkening Ring Set for EFW & APS-C or Full Frame ASI Cameras* - DR-D88 type-finders-polarscopes-and-brackets 03 microns per step

03 microns per step

Generous 127 mm aperture has good light-gathering capability for galaxies

This ZWO OIII 7nm Filter is 36mm and unmounted and can be used in filter wheels that accept 36 mm filters

Unique imaging enhancement technique is used

12% ND64 1

ZWO Darkening Ring Set for EFW & APS-C or Full Frame ASI Cameras* - DR-D88 type-finders-polarscopes-and-brackets 03 microns per stepThe D88 Darkening Ring Set will help solve any possible light leak issue occurring in the gap between EFW 2" or 36 mm seven position filter wheels and all ASI APS C or Full Frame cameras *except the ASI461MM P, which uses the ZWO D90 Darkening Ring Set. The D88 set includes four (4) rings. All have an external diameter of 88 mm and are approximately 0. 2 mm thick. Two have an inside diameter of 55 mm and two have an inside diameter of 58 mm. The 55 mm