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Product Description

Ostara short tube cheshire collimating eyepiece
Size 1.25"
For accurate collimation of Newtonian reflectors. We find the short tube version more popular because with 
most Newtonians, you can get all of the secondary mirror in view, making alignment and centering more easy

Ostara are fast becoming a well known and respected brand when it comes to astronomical accessories, binoculars and telescopes.
Straight out the box, you will be aware how solid and well built this collimating eyepiece is.

Unlike laser collimators, the cheshire design can be used to align both primary and secondary mirrors.
Simply line up the cross hairs on the eyepiece with the centre circle on the primary mirror for correct collimation.

Accurate collimation is essential for high power observing. Stars will become more like pin points of light, and 
Planetary / Lunar detail will be enhanced

Comes retail packaged with the Ostara logo showing on both the box and eyepiece
The compact size of the short tube version makes it suitable for many eyepiece cases

Weight 80g
Dimensions 70mm x 36mm x 36mm 

Customer Reviews

Ostara Cheshire collimating eyepiece (short tube)

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