DURA-BRIGHT 1.25" DIELECTRIC 90° DIAGONAL CMOS COOLED single knob with 2 tightening

single knob with 2 tightening points Warranty

the rings # 25A can then be screwed onto the T2 thread of the reducer # 15

Main features:

it can be rotated 360° to perfectly frame the subject and it has a reduction gear of 10:1 for precise focusing

DURA-BRIGHT 1.25" DIELECTRIC 90° DIAGONAL CMOS COOLED single knob with 2 tighteningThe William Optics Dura Bright 1. 25" diagonal is a high quality 90 mirror type star diagonal with dielectric coatings for 99% reflectivity, giving ultra high contrast and resolution for planetary, lunar and binary star observation. The high precision 12mm thick mirror substrate is polished to 1 12th lambda accuracy for optimal image quality. Meticulously CNC machined with internal anti reflection baffling and carbon fibre side plates, the Dura Bright