SVBONY SV165 40mm Mini Guide Scope, F4 Finder Scope with Scale, Astronomy Accessories Compatible with ZWO QHY Orion Auto SV305 Pro Telescope Cameras for Deep Sky Photography

SVBONY SV165 40mm Mini Guide Scope, F4 Finder Scope with Scale, Astronomy Accessories Compatible with ZWO QHY Orion Auto SV305 Pro Telescope Cameras for Deep Sky Photography

• Suitable for OTA with focal length within 700mm; SV165 compact mini guide scope can be used with astronomical telescopes with focal length within 700mm
• Clear and sharp vision; fully multi-coated and achromatic optical glass brings you clearer and sharper vision in astronomical observation and astrophotography
• Compatible with guide cameras; the 1.25-inch and M42 threaded interface is compatible with SV305 Pro and Orion ZWO QHY and so on auto guiding cameras; guidescope with two T2 extension tubes can assist focusing.Therefore, we recommend adding a note on the page: If the paired eyepiece cannot focus, we recommend removing the red locking ring and reducing the tube length to its minimum.
• Front focuser with scale; it is convenient to mark the focus position to improve the efficiency of Repeating focusing; Locking ring can ensure that the focus position does not change during use
• Six-point guide ring; the angle-adjustable six-point fixation method can adjust the coaxiality of the guide scope and the main telescope according to the needs