Barlow lens is indispensable for astronomical telescopes;it improves the efficiency of the eyepiece and doubles the magnification of the eyepiece of a 1.25-inch telescope.
The 5x barlow lens is actually measured at 2x magnification.
It is compatible and works with most mainstream brands of telescopes.
With universal M42 external thread; can also be connected to SLR cameras. Attach one end to the T-ring, then to the SLR, and finally attach the whole assembly to your telescope to start to photograph. (Tip: T-ring is not included in the package and must be purchased separately).
It machined with precision CNC. Anti-corrosion surface treatment suitable for long-term use.