This used FlipMirror II is in good condition.

Description

• Baader-FlipMirror II Star Diagonal (BFM II) with precise surface-mirrored flip mirror with multi-layer Al coating and three ports:
  • Straight-through (S52, M48 and T-2 on both sides) for full-frame camera, spectrograph, or other instruments
  • Adjustable T-2 thread on top for eyepiece clamps, video modules (up to 32 mm image circle) or even a binoviewer
  • Bottom flange for the optional Off-Axis-Guider or for an optional calibration lamp for spectroscopy
• Shortest possible overall length for any application – compatible with a large number of adapters from the Baader Astro T-2 system, the M48 system and the UFC system (Universal Filter Changer)
• Rotatable M48 connection rings made of hardened, stainless steel on front and rear