We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Baader Planetarium

Baader Planetarium FlipMirror II Star Diagonal 55-59mm

SKU CH-HNV2-5Z12H

Transforms a single telescope port into multiple viewing and imaging options with an adjustable mirror and 55-59mm optical length

  • Variable adapter types for telescope integration
  • Fine-polished mirror with lateral adjustment tools
  • Short optical length 55-59mm minimises light loss
  • High-quality materials ensure stable alignment
  • Rotary knob switches rear and top ports

Versatile Telescope Accessory

The Baader Planetarium FlipMirror II Star Diagonal transforms a single telescope exit port into a multi-use platform for visual observation, astrophotography, and spectroscopy. Its variable adapter types, including thread and dovetail ring clamps, allow seamless integration with various telescope setups. This accessory is designed for avid stargazers and astrophotographers seeking workflow efficiency.

Replaces Manual Equipment Swapping

The FlipMirror II eliminates the need to physically exchange eyepieces, cameras, or spectroscopy gear in the dark, reducing wear on equipment and frustration during sessions. A precision rotary knob enables quick alternation between the rear and top ports. The jump is worth it for users who regularly switch between visual and imaging configurations or run automated sequences.

Check Telescope Compatibility

Verify that your telescope focuser can accommodate the 55-59mm optical length and accepts the provided thread or dovetail ring clamp adapters. Ensure sufficient back focus remains for your specific imaging train or eyepieces after installation. Motorised automation requires an optional toothed belt and a compatible motor, neither of which are included.

Highlights

  • Variable adapter types for telescope integration
  • Fine-polished mirror with lateral adjustment tools
  • Short optical length 55-59mm minimises light loss
  • High-quality materials ensure stable alignment
  • Rotary knob switches rear and top ports

Specifications

No published specifications for this item yet.

Questions about this item

What is the optical path length of the FlipMirror II Star Diagonal?

The optical path length is adjustable between 55 and 59 millimetres, keeping the light path short to reduce vignetting and preserve image quality.

How is the movable mirror aligned during installation?

The mirror is laterally adjustable using the included tools; rotate the fine-adjustment screws until the reflected beam is centred on the rear and top ports, then lock the position.

Which components may need replacement after extended use?

The precision-polished movable mirror surface and the rotary knob mechanism are the primary wear items; both are serviceable by Baader Planetarium if alignment degrades over time.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.