Modern Telescopes  India's largest telescope store proud to present founder optics 0.8x focal reducer. Modern Telescopes is authorized distributor of Founder Optics.
 
Key features :-
 
•Reduce focal length 0.8x to give the fast focal ration
•Interchangeable male M42 and M48 thread
•Fit with Founder Optics FOT86/ FOT106
•Universal for f/5~f/7 refractor
 
Specification:
•Coatings: Fully multi-coated
•Clear aperture: 38mm
•Mounting: 42mm & 48mm male thread (interchangeable)