SVBONY Precision M42X0 75 Telescope Guidescope Review

The focusing stroke is 10 mm; make miniature focusing is more accurate and clear; With 0.05mm higher focusing accuracy; smooth even at great magnification; make your focus more precise. The 1.25" double helical focuser with SVBONY M31*0.5 female thread to M42*0.75 T2 female thread adapter; help you convert a male M31*0.5 thread to a female T2 thread with minimum possible mechanical. 1.25 inch inner diameter with Top T2 external thread (M42*0.75mm) and the bottom is M31x0.5 female thread; In the process of focusing; the inserted eyepiece or zenith; etc;keeps no rotation and only makes linear motion; which is conducive to observation and shooting. The interface of the double helical focuser is brass ring design; not only provides an effective hold but also protects your eyepiece or zenith mirror or CCD eyepiece from scratches. High-strength aluminum alloy material increases the durability of the product; Surface matte and black anodized; effectively reducing light loss; making it more textured.