S8134 M42 double helix focusing M42 * 0.75 external thread

S8134 M42 double helix focusing M42 * 0.75 external thread (eyepiece CCD does not rotate)

Number: S8134

Weight: 100G

Origin: China

External thread specification:

M42*0.75-3mm

M36.4*1-4mm

Focusing accuracy: about 0.05mm