SVBONY SV198 Mini 50mm Guiding Scope with Dual Helical Focuser

• 50mm aperture; SV198 is convenient for astronomers to find a target in the sky; a large diameter can obtain a good view;
• Position clamp screw; easy to adjust the guide scope and astronomical tube; especially important for entry level astronomy enthusiasts;
• Optical glass; multi layer broadband anti reflection coating double glue lens; well made edge coating;
• Precise helical focusing with a millimeter scale and 12mm focal path; 
• One scope for multiple purposes; can be used as a guide star and star finder; 
• 45mm T2-Extension Tube Male thread M42*0.75; Female thread M42*0.75; eliminates a range of focusing problems;Tube rings with Vixen compatible dovetail.

Feature

• 1. The SV98 50mm small telescope is primarily intended as a guide scope for autoguiding. But it can also be used as a viewfinder or mini telescope.
• 2. Focusing is done using a precise helical focuser with a millimeter scale and 12mm focus path.
• 3. 1.25" eyepiece holder with T2 thread.
• 4. Position clamp screw.
• 5. Tube rings with Vixen compatible dovetail.
• 6. The 45mm T2-Extension Tube Male thread M42*0.75; Female thread M42*0.75; eliminates a range of focusing problems.