Metal 1.25 cheshire collimating eyepiece for newtonian refractor telescopes D 9H

Metal 1.25 cheshire collimating eyepiece for newtonian refractor telescopes D 9H

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To get the most out of your Newtonian scope you really need to align or collimate the mirrors.
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).
Materialaluminium alloy
size1.25inch
colorblack
package include1pc

note:       1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.
      2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.

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Category: Cameras and Photography:Telescopes and Binoculars:Telescope Parts and Accessories:Other Telescope Parts
Location: London