CFW3 Medium 5 Position Filter Wheel (Thin) - 2"/50mm

QHY's 3rd generation CFW3 Medium filter wheel features an ultra-thin 17mm profile with five positions for 2" or 50mm round filters, delivering fully automatic filter switching capability. This model incorporates an ultra-thin hybrid stepper motor offering superior precision and smaller step angles compared to traditional PM stepper motors. The friction drive system delivers zero backlash operation, making it ideal for serious astrophotography where precise filter positioning is critical. The ultra-thin design enables USB/4-pin serial mode switching and works seamlessly with QHY COLDMOS cameras while preserving backfocus for wide-field imaging with camera lens adapters.