FLI 5 Position Color Filter Wheel (for 2" or 50mm diameter filters) [FLI-CFW1-5] - Filter Wheels - O'Telescope
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Starlight Xpress 5-Position SXMDFW-2T MIDI USB Filter Wheel for 2" Filters with Male and Female T-Threads and a Slimline Off-Axis Guider OAG | High Point Scientific
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Assembling a 2'' Filter wheel to a SCT for visual observing (pictures) - Cats & Casses - Cloudy Nights
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