iOptron CEM40 centre-balanced equatorial mount

Compact, accurate mount with impressive load bearing

The CEM40 is an interesting prospect. While it has features normally found on high-end mounts, at a little over 635kg it also maintains a strong foothold in the portable grab-and-go arena. It has an impressive 18kg load capacity (for comparison a Celestron C11 optical tube weighs 12.5kg), free-running lockable clutches, permanent periodic error correction, GPS and a semi-automatic electronic polar-alignment system. It doesn’t skimp on quality: the mount body is solidly constructed from CNC machined aluminium. We were also impressed with the online documentation which took us through initial setup in a well-organised, logical fashion. The iPolar polar alignment system recognises stars around your local celestial pole but doesn’t need to be able to see the pole itself – a useful option if visibility is limited. Once polar alignment is…

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The Astronomer's Yearbook 2019 (Digital) - 1 Issue, Astronomer's Yearbook 2020

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