Sky-Watcher 21.5mm Pier Extension for AZ-Pronto / AZ-GTi / Avant / AZ5 / SA Tripod
The half-pillar (extension) is inserted between the tripod and the mount, enabling observation of objects at the zenith without the telescope fouling the tripod legs. A half-pillar also permits more comfortable observing - especially when using a refractor.
Sky-Watcher 8.4" Pier Extension for EQ6 / EQ6-R / AZ-EQ6
Works on EQ6 and EQ6-R mounts. Raises the mount head 8.4”. Especially useful for owners of long-tube refractor telescopes because it positions the eyepiece at a more comfortable height and prevents the telescope from hitting a tripod leg.
1.25" stainless steel tripod that fits all SmartStar Cube and Cube Pro series mounts. Allows mount to be positioned in either altazimuth (AA) or equatorial(EQ) positions.
A proper Go2Nova hand controller is needed to function the mount in both AA and EQ.
The Sky-Watcher extension tube extends the height of EQ5/HEQ5/AZ-EQ5 mounts by about 16" so is a popular choice with owners of long-tube refractor telescopes as it places the eyepiece at a more comfortable height and prevents the telescope hitting a tripod leg.
The iOptron Tri-Pier combines the strength and stableness of a pier with the levelling flexibility of a tripod. Aluminum pier and leg tops. Stainless steel leg extensions. The Tri-Pier feet has built-in vibration suspension pads.
The iOptron heavy duty Tri-Pier 360A combines the strength and stableness of a pier with the levelling flexibility of a tripod. 5mm thick aluminum alloy pier and CNC machined legs with adjustable feet.
The Tri-Pier 360A can be used for the following mounts directly: