4" - 6" Aperture Converter Box, Metal

The metal build feels reassuringly solid compared to plastic adapters I’ve used before, and the threading is clean with zero wobble once tightened. Takes less than a minute to swap between my 4-inch and 6-inch gear, which makes setup a breeze.

Fits my 4-inch and 6-inch setups perfectly, and the threaded design makes swapping aperture rings effortless. The inner surface has a nice matte finish that cuts down on stray reflections.

The metal body feels solid and machined well, no wobble where it mates with my 4" setup. Took maybe two minutes to install and collimation held after.