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Astro Frog Professional Filter Drawer 18mm Rear Intercept for M42/M48/M54 Astronomical Telescopes
Filter Drawer:
- Occupied rear intercept 18mm (precision machining)
- Telescope interface: M42/M48/M54 internal thread
- Camera interface: M42/M48/M54 external thread
- Any transformation form, multi compatibility
- The drawer comes with a 2-inch filter insert and a 2-inch to 1.25 filter port
- Hexagonal wrench x 2
- High compatibility, internal thread extinction
- Rear intercept combination: cooling camera 1.75 flange distance; 18mm filter drawer and 19.5mm OAG can be combined to achieve a standard 55mm rear intercept.
- Installation precautions: The filter drawer should be installed behind the OAG. If the filter is installed in front of the OAG, the guiding camera will not detect the star point.
Package Included:
- 1 x Filter Drawer