ZWO M42-M48 Extender - 22.5mm - ZWO M42-M48-22.5 40 mm Eyepieces This glare can be cut

This glare can be cut back using neutral density filters or polarizers

Visual Back: Insertion 31

Optolong conducted a qualitative halo test with the bright star of the Veil Nebula and it can be seen from the original picture that the O-III 3nm filter performs better with bright stars

” This effect can reduce our eye's resolving power

so you can mount it on any standard photographic tripod for extended viewing or digiscoping sessions

ZWO M42-M48 Extender - 22.5mm - ZWO M42-M48-22.5 40 mm Eyepieces This glare can be cutThe ZWO M42 M48 22. 5mm Adapter is useful to obtain a precise spacing when using a focal reducer or corrector that needs a certain chip reducer spacing. It can also help you to get the 55mm backfocus distance. This 22. 5 mm spacer is useful for ASI2600MM Pro users who want to connect the camera to a 7x36mm filter wheel to reach 55mm back focus distance when an OAG L is not in play. Connection Side A M42x0. 75 (T T2) Thread Male Connection Side B