TS Optics Guide scope with 70/900mm and adjustable tube rings
This refractor is a good solution for amateur astronomers who need a guide scope with a bit more focal length but don't want to burden the mount with high additional weights. The achromatic objective with 70 mm diameter provides very good star images and allows guiding on relatively faint stars.
If you want to use compact autoguiders with 1.25" barrel or eyepieces, you need a 1.25" star diagonal.
- The refractor is from Synta and has 70 mm aperture and 900 mm focal length.
The 2-element lens is a classical Fraunhofer achromat with multi-coating.
The focuser offers 1.25" and T2 connection - a locking screw provides reliable hold even during longer exposure times.
The tube is made of metal, the focuser is made of plastic - but very well manufactured, thus there is no wobbling!
The guide scope rings are made of metal. The adjustment screws feature
plastic tips against scratching the tube. The flat base of the guide
scope rings has a female M6 thread for easy attaching to tube rings or
The total weight of the guiding scope is only 1100 grams - perfect if the mount should not be excessively strained.
Guide scope 70/900mm
TSO-TSLEITS guide scope rings
Lightweight, compact telescope for guiding in astrophotography, also suitable for autoguiding