1.25Inch Cheshire Collimating Eyepiece For Newtonian Refractor Telescopes Structure Astronomical Telescope Accessory

It can take some time getting used to aligning both the secondary and primary mirrors and this short collimator can make it much easier. The short collimator for mirror (reflector) telescopes has a 45 degree plate for easier visual accuracy.

Collimation is the alignment of elements inside an optical system like a telescope. Colimating a telescope consists of adjusting the tilt and position of the mirrors and lenses to ensure that the focal point reaches optimum focus at the point from

which the image will be viewed (the eyepiece or possibly a camera).

colour:black

Material:Aluminum alloy

Package Contents:

1*Short calibration eyepiece

1*boxes

1*opp bag

Only the above package content, other products are not included.