ZWO Filter Drawer M42

It fits snuggly into my optical train. This new version has better magnetic grip than the older version, by which the filter holder lost its grip on occasions, but that won’t happen anymore with the more powerful magnet on this model. It was easy to install; just remove the 21mm spacer and replace it with the filter draw… easy as. There is absolutely no light leakage either.

Works great with any ecosystems, I'm using mine with a touptek 533 osc camera and works fabulously switching between L and triband filters quickly, and integrates well with existing back focus configuation.