ZWO Darkening Rings

Fit these onto my EFW-7*2 and they cut out all the stray light that was ruining my flats. The 88mm outer diameter matched perfectly with my filter wheel setup. Such a simple fix for a frustrating problem.

My old setup always had light leaks sneaking into the filter wheel, but these rings snuggled right onto the EFW-7x36 and killed all the stray glow. The 88mm outer diameter sits flush with no wobble, and the set covers all the wheel sizes I swap between.

The 88mm outer diameter fit my EFW-7x36 perfectly with zero light leaks. I’ve been chasing faint nebulae and these rings finally killed the stray reflections in my subs.