Most Pelletier chilled assemblies use magnetic bearings for fans, so very low shake. I use an Orion star shoot G3 (can't really recommend it), but vibration fro

Most Pelletier chilled assemblies use magnetic bearings for fans, so very low shake. I use an Orion star shoot G3 (can't really recommend it), but vibration from quarrying 20 miles away is more of a problem than the fan. Oh, and that's on 2032mm f/10.