Under the TS Optics brand you will find numerous optics from major manufacturers such as GSO, but also many in-house developed products and useful accessories.
Is the distance between the eyepiece and eye, within which the entire eyepiece field of view can still be seen. Longer eye reliefs are recommended for relaxed observing.
Specifies the product's connection or connection thread on the telescope connection end. The same adapter dimension must always be available on the telescope.