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Pier Extensions & Adapters

A pier extension raises the mount above its tripod so the telescope, camera and cables clear the legs when the mount flips at the meridian. It is one of the simplest fixes for collisions with long refractors, SCTs with a rear focuser or cameras with a filter wheel. Adapters in this collection connect a mount to a different tripod or pier, such as an EQ6-class head on a PrimaLuceLab C82 pier or a Paramount on a different base.

We carry extensions and adapters from iOptron (MiniPier series and pier top adapters), Sky-Watcher, ZWO, Software Bisque, PrimaLuceLab, Pegasus Astro, Starizona and William Optics.

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Original price $199.00 USD
Original price $199.00 USD - Original price $199.00 USD
Original price $199.00 USD
Current price $179.00 USD
$179.00 USD - $179.00 USD
Current price $179.00 USD

ZWO 200mm Pier Extension

Adds 200mm of height to prevent OTA collisions Engineered specifically for the ZWO AM5 Mount Hollow, aircraft-grade aluminum construction Compatib...

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Original price $199.00 USD
Original price $199.00 USD - Original price $199.00 USD
Original price $199.00 USD
Current price $179.00 USD
$179.00 USD - $179.00 USD
Current price $179.00 USD
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Original price $35.72 USD - Original price $35.72 USD
Original price
$35.72 USD
$35.72 USD - $35.72 USD
Current price $35.72 USD

David Astro Leveling Base for Seestar

Introducing the Seestar Tripod Lever, engineered with innovative design featuring 3 thumb screws for effortless leveling control. Designed to meet...

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Original price $35.72 USD - Original price $35.72 USD
Original price
$35.72 USD
$35.72 USD - $35.72 USD
Current price $35.72 USD
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Original price $99.00 USD
Original price $99.00 USD - Original price $99.00 USD
Original price $99.00 USD
Current price $89.00 USD
$89.00 USD - $89.00 USD
Current price $89.00 USD

ZWO 160mm Pier Extension

Adds 160mm (6.30") of height for increased OTA clearance Designed for the ZWO AM5 mount Hollow, aircraft-grade aluminum construction for rigidity ...

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Original price $99.00 USD
Original price $99.00 USD - Original price $99.00 USD
Original price $99.00 USD
Current price $89.00 USD
$89.00 USD - $89.00 USD
Current price $89.00 USD
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Original price $100.00 USD - Original price $100.00 USD
Original price
$100.00 USD
$100.00 USD - $100.00 USD
Current price $100.00 USD

Sky-Watcher EQ6-R Pier Extension

Adds 8.4 inches (213 mm) of height between the mount and tripod Gives long refractors and camera assemblies more clearance from the tripod legs Co...

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Original price $100.00 USD - Original price $100.00 USD
Original price
$100.00 USD
$100.00 USD - $100.00 USD
Current price $100.00 USD
Original price $39.95 USD - Original price $39.95 USD
Original price
$39.95 USD
$39.95 USD - $39.95 USD
Current price $39.95 USD

Starizona PE200 to EQ6 Tripod Adapter

Adapts ZWO PE200 pier extension to Sky-Watcher EQ6 tripods Supports ZWO AM5 and Sky-Watcher Wave mounts via the PE200 Compatible with standard whi...

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Original price $39.95 USD - Original price $39.95 USD
Original price
$39.95 USD
$39.95 USD - $39.95 USD
Current price $39.95 USD
Original price $185.00 USD - Original price $185.00 USD
Original price
$185.00 USD
$185.00 USD - $185.00 USD
Current price $185.00 USD

Sky-Watcher Wave Tripod Extension Tube

Adds 7 inches (180 mm) of height to your mount Weighs 2.4 lb (1.1 kg) Compatible with Wave 100i and Wave 150i mount heads Attaches to the Wave car...

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Original price $185.00 USD - Original price $185.00 USD
Original price
$185.00 USD
$185.00 USD - $185.00 USD
Current price $185.00 USD
Original price $50.00 USD - Original price $50.00 USD
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$50.00 USD
$50.00 USD - $50.00 USD
Current price $50.00 USD

Pegasus Universal Pier Adapter

Mounts the Pegasus NYX-101 to any EQ6-type tripod Enables construction of a half-pier extension Universal fit for a wide range of tripods Desc...

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Original price $50.00 USD - Original price $50.00 USD
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$50.00 USD
$50.00 USD - $50.00 USD
Current price $50.00 USD
Original price $45.00 USD - Original price $45.00 USD
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$45.00 USD
$45.00 USD - $45.00 USD
Current price $45.00 USD

Sky-Watcher Star Adventurer Tripod Extension

Adds 8.5 inches (215 mm) of height to your tripod 70 mm (2.8 in) diameter tube Anodized aluminum construction Compatible with Star Adventurer, Min...

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Original price $45.00 USD - Original price $45.00 USD
Original price
$45.00 USD
$45.00 USD - $45.00 USD
Current price $45.00 USD
Original price $100.00 USD - Original price $100.00 USD
Original price
$100.00 USD
$100.00 USD - $100.00 USD
Current price $100.00 USD

Sky-Watcher EQ-AL55i Pier Extension

Adds 8.5" (215mm) of Height Helps Long Tubes Clear the Tripod Legs Designed Exclusively for the EQ-AL55i Mount Description FAQ Specifications I...

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Original price $100.00 USD - Original price $100.00 USD
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$100.00 USD
$100.00 USD - $100.00 USD
Current price $100.00 USD
Original price $118.00 USD - Original price $118.00 USD
Original price
$118.00 USD
$118.00 USD - $118.00 USD
Current price $118.00 USD

iOptron CEM26/HEM27/GEM28/HAE29 MiniPier 8-inches

Adds a full 8 inches of height to compatible iOptron mounts Improves viewing comfort, especially for taller observers or when viewing near zenith ...

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Original price $118.00 USD - Original price $118.00 USD
Original price
$118.00 USD
$118.00 USD - $118.00 USD
Current price $118.00 USD
Original price $75.00 USD - Original price $90.00 USD
Original price
$75.00 USD - $90.00 USD
$75.00 USD - $90.00 USD
Current price $75.00 USD

iOptron Pier Top Plate

Model-Specific Fit: Ensures a precise, secure connection for various iOptron mounts. Solid Machined Construction: Provides a rigid, flex-free base...

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Original price $75.00 USD - Original price $90.00 USD
Original price
$75.00 USD - $90.00 USD
$75.00 USD - $90.00 USD
Current price $75.00 USD
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Original price $118.00 USD - Original price $118.00 USD
Original price
$118.00 USD
$118.00 USD - $118.00 USD
Current price $118.00 USD

iOptron MiniPier 6" Pier Extension for CEM40/HAE43/HEM44/GEM45

Adds 6 inches of height to the mount Prevents telescope-tripod collisions near the zenith Enables uninterrupted meridian-crossing astrophotography...

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Original price $118.00 USD - Original price $118.00 USD
Original price
$118.00 USD
$118.00 USD - $118.00 USD
Current price $118.00 USD
Original price $148.00 USD - Original price $148.00 USD
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$148.00 USD
$148.00 USD - $148.00 USD
Current price $148.00 USD

iOptron MiniPier 8" Pier Extension

Adds 8" (200 mm) of Height to Your Mount Setup Prevents Long Telescope Tubes from Colliding with Tripod Legs Features a 150mm Top Plate for iOptro...

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Original price $148.00 USD - Original price $148.00 USD
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$148.00 USD
$148.00 USD - $148.00 USD
Current price $148.00 USD
Original price $185.00 USD - Original price $185.00 USD
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$185.00 USD
$185.00 USD - $185.00 USD
Current price $185.00 USD

Sky-Watcher Wave to EQ6 Tripod Adapter / Pier Extension

Securely adapts Sky-Watcher Wave mounts to EQ6 tripods Functions as a pier extension for added height Improves stability by utilizing the heavy-du...

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Original price $185.00 USD - Original price $185.00 USD
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$185.00 USD
$185.00 USD - $185.00 USD
Current price $185.00 USD
Original price $85.00 USD - Original price $85.00 USD
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$85.00 USD
$85.00 USD - $85.00 USD
Current price $85.00 USD

Sky-Watcher AZ-EQ5 Pier Extension

Adds 6.3 inches of height to the Sky-Watcher AZ-EQ5 mount Prevents long optical tubes from colliding with tripod legs Improves observing comfort f...

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Original price $85.00 USD - Original price $85.00 USD
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$85.00 USD
$85.00 USD - $85.00 USD
Current price $85.00 USD
Original price $189.00 USD - Original price $399.00 USD
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$189.00 USD - $399.00 USD
$189.00 USD - $399.00 USD
Current price $189.00 USD

Starizona Pier Adapter Kit for Celestron and Sky-Watcher Mounts

Adapts Equatorial Mounts to Permanent Piers Provides 4 inches of Clearance for Easy Access 1-inch Diameter Standoff Posts Base Plate with Three 1/...

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Original price $189.00 USD - Original price $399.00 USD
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$189.00 USD - $399.00 USD
$189.00 USD - $399.00 USD
Current price $189.00 USD
Original price $185.00 USD - Original price $185.00 USD
Original price
$185.00 USD
$185.00 USD - $185.00 USD
Current price $185.00 USD

Sky-Watcher Star Adventurer to Wave Carbon Fiber Tripod Adapter / Pier Extension

Mounts a Sky-Watcher Star Adventurer on the Wave Carbon Fiber Tripod (S30910) Doubles as a pier extension for added clearance 7-inch (180mm) lengt...

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Original price $185.00 USD - Original price $185.00 USD
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$185.00 USD
$185.00 USD - $185.00 USD
Current price $185.00 USD
Original price $169.00 USD - Original price $169.00 USD
Original price
$169.00 USD
$169.00 USD - $169.00 USD
Current price $169.00 USD

iOptron MiniPier for HAE69 & HAZ71 Mounts

Adds critical height between the mount head and tripod Prevents long optical tubes from colliding with tripod legs Designed specifically for iOptr...

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Original price $169.00 USD - Original price $169.00 USD
Original price
$169.00 USD
$169.00 USD - $169.00 USD
Current price $169.00 USD
Original price $99.00 USD - Original price $99.00 USD
Original price
$99.00 USD
$99.00 USD - $99.00 USD
Current price $99.00 USD

iOptron MiniPier for CEM26, HEM27, GEM28 & HAE29 Mounts

Adds 5.5 inches of height to compatible mounts Prevents telescope and camera collisions with tripod legs Improves stability by keeping tripod legs...

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Original price $99.00 USD - Original price $99.00 USD
Original price
$99.00 USD
$99.00 USD - $99.00 USD
Current price $99.00 USD
Original price $208.00 USD - Original price $208.00 USD
Original price
$208.00 USD
$208.00 USD - $208.00 USD
Current price $208.00 USD

iOptron Tri-Pier Adapter for Astro Physics Mounts

Connects Astro-Physics Mounts to iOptron Tri-Pier Enables a Stable, Portable High-End Setup Engineered for a Secure Mechanical Fit Ideal for Field...

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Original price $208.00 USD - Original price $208.00 USD
Original price
$208.00 USD
$208.00 USD - $208.00 USD
Current price $208.00 USD
Original price $158.00 USD - Original price $158.00 USD
Original price
$158.00 USD
$158.00 USD - $158.00 USD
Current price $158.00 USD

iOptron Pier Adapter for Celestron CGX (150mm Pier Tube)

Adapts Celestron CGX mounts to permanent piers Designed for pier tubes with a 150mm outside diameter Provides a rigid, stable foundation for astro...

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Original price $158.00 USD - Original price $158.00 USD
Original price
$158.00 USD
$158.00 USD - $158.00 USD
Current price $158.00 USD
Original price $75.00 USD - Original price $75.00 USD
Original price
$75.00 USD
$75.00 USD - $75.00 USD
Current price $75.00 USD

iOptron Pier Top Plate for CEM60 & CEM70 Mounts

CEM60 & CEM70 Compatibility: Pier top plate for iOptron CEM60 and CEM70 equatorial mounts. Pier Integration: Provides a stable, secure conne...

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Original price $75.00 USD - Original price $75.00 USD
Original price
$75.00 USD
$75.00 USD - $75.00 USD
Current price $75.00 USD
Original price $138.00 USD - Original price $138.00 USD
Original price
$138.00 USD
$138.00 USD - $138.00 USD
Current price $138.00 USD

iOptron Pier Top Adapter For Tri-Pier For SBIG Paramount MyT

Directly connects a Paramount MyT mount to an iOptron Tri-Pier Compatible with iOptron Tri-Pier (#8034) and Tri-Pier 360 (#8037A) Precision CNC-ma...

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Original price $138.00 USD - Original price $138.00 USD
Original price
$138.00 USD
$138.00 USD - $138.00 USD
Current price $138.00 USD
Original price $90.00 USD - Original price $90.00 USD
Original price
$90.00 USD
$90.00 USD - $90.00 USD
Current price $90.00 USD

iOptron Pier Top Plate for CEM40

Adapts select iOptron mounts to iOptron piers iOptron item #8032PT-CEM40, for the CEM40 mount head All-metal construction for a stable connection ...

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Original price $90.00 USD - Original price $90.00 USD
Original price
$90.00 USD
$90.00 USD - $90.00 USD
Current price $90.00 USD

Choosing the Right Part

  • Length: Most setups need 150 to 200 mm. Longer extensions reduce stiffness, so add only what you need.
  • Mount base diameter and bolts: Each mount uses a specific base pattern. Extensions are usually made for one family, like CEM40 and HEM44 or EQ6-R.
  • Tripod top: The bottom of the extension has to match your tripod or pier head.
  • Azimuth adjustment: Some mounts rely on a peg on the tripod top for polar alignment. Make sure the extension keeps it.

Pier Extensions: Frequently Asked Questions

Does a pier extension make the mount less stable?

A well-made extension of moderate length has very little effect, and it often improves stability because you can keep the tripod legs shorter.

How do I know if I need one?

Point the telescope near the zenith and slew through the meridian. If anything touches the legs, or comes close with a camera attached, an extension will help.

Which adapter fits my pier?

Send us your mount and pier or tripod models. Many combinations need a specific plate.

Not sure which adapter fits?

Send us your mount and tripod or pier model and we will name the exact part.