The SVBONY Helical Focuser allows for precise focusing of eyepieces or cameras. It is ideal in connection with a guide scope and a guide-camera. such as SV165 series mini guide scope. The focuser features a female T2-thread on the telescope side, while allowing the attachments of 1.25" equipment on the eyepiece / camera side. In addition, there is a male T2 thread on the camera side. During focusing, the attached accessories keep their orientation and don't rotate. The exact focus position can be fixed with a clamp screw.

Svbony SV181 fully metal 1.25'' R&P Newtonian reflector focuser with 65mm focuser travel. Very popular DIY accessory.

• Reflection telescope universal focuser adapter apply to accessories with M42x0.75 male thread and accepts 1.25" eyepieces
• Features three locking thumbscrews, any inserted 1.25" astronomical accessory can be secured
• All metal construction and anodizing aluminium process, durable for long time use
• Reflection telescope universal focuser adapter easy to use
• Turn three screws to fine-tune the eyepiece center to align with the objective