TS Optics Flip Mirror System & Off Axis Guider (58712)

The TS Optics Flip Mirror System & Off Axis Guider is a highly versatile accessory designed for both observation and astrophotography. It features a unique system where a large, multi-coated prism can be inserted into the optical path for a 90° viewing position or withdrawn for straight-through imaging. This setup allows you to easily center objects for your camera or high-power eyepiece, then switch to imaging or observation without losing alignment. The system also functions as an off-axis guider, letting you guide on stars outside the camera’s field of view—ideal for sensors up to about 30mm in diameter (APS-C). Its 360° rotation makes finding a suitable guide star straightforward, and the compact design requires only 35.5 mm of back focus, making it compatible with a wide range of setups.

This system is an excellent choice for astronomers seeking a flexible, compact, and efficient solution for both visual centering and off-axis guiding in astrophotography.

Key Features and Specifications

• Flip mirror system uses a large prism for 90° viewing; no actual mirror is flipped

• Straight-through mode available by pulling the prism outward

• Off-axis guider function allows autoguiding using stars outside the main field of view

• 360° rotatable for flexible positioning and easy guide star acquisition

• Multi-coated prism for high light transmission and clear views

• Requires only 35.5 mm of back focus, increasing compatibility compared to conventional flip mirror systems

Connections

• Telescope side: Female M48x0.75 mm (2" filter thread), 360° rotatable

• Camera side: Male T2 (M42x0.75), 360° rotatable

• 90° terminal: Male T2 (M42x0.75)