1.25inch Double Helical Focuser with Compression Ring

1.25inch Double Helical Focuser with Compression Ring Description

This is an excellent 1.25-inch double-threaded focuser with a 10mm adjustment stroke. It is light and compact, made of all metal, and .
During the focusing process, the inserted CDD eyepiece or mirror remains non-rotating and only makes linear movements, which is conducive to observation and astronomical photography.
The meticulous craftsmanship makes its micro-focusing extremely precise, and it remains smooth and stable even at huge magnifications.

1. -new double-helix focuser
2. High- double-helix focuser for guide mirror/finder interface
3. Solution to slow focusing of telescopes or telephoto lenses
4. Made of all metal,
Inner diameter 1.25inch
Stroke 10mm
Adjustment accuracy 0.05mm
Top external thread M42x0.75
Bottom interface external thread
Bottom inner ring external thread M31x0.5
Minimum height 46mm
Maximum height 56mm
Colour:Black
Material:Metal

Package Contents:
1 x Telescope Double Helical Focuser

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.