The SLIK smh-250 Micro adjustment mount that can be used with the each-630 astro tracker or any camera or head. This mount allows the 630 to tilt up to 90 degrees and has 4 individual thumb screws for making minute adjustments to the position of the head. This makes fine-tuning polar alignment of the each-630 much easier. The smh-250 is all-aluminum and weighs just 8.8 oz. and takes up little room in a camera bag. The base of the smh-250 is Arca-Swiss compatible so it is will easily mount into any tripod head with an Arca-Swiss compatible quick release system.