Feature
High-Quality Engineered Optical Flattener
Built-in Self-Centering Adapter
SCA Eliminates Drawtube/Visualback Slop
SCA Eliminates Unstable Thumbscrew Locking
SCA Accepts the Imperfraction of a Drawtube/Visualback
SCA Damps Vibration from the Telescope
Accepts 2" Filter Thread
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