Starlight Instruments Holographic Attachment

  • Choose your Holographic attachment type: Self-barlow, Cross-hair, or Grid
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  • Regular price $95.00

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Starlight Instruments Holographic Attachment

The Holographic Attachment by Starlight Instruments:

The Self-Barlow attachment is a disc with a white screen on the front and a small built-in Barlow lens in the center of the disc. It is then screwed into the Howie Glatter laser collimator (sold separately) aperture and provides a highly compact method for Barlow-collimating.


Cross-hair Projection Attachment: Useful for aligning the returning beam on collimator face.


Square Grid Projection Attachment: A 10 x 10 line square grid pattern. It spreads 21 degrees which allow centering of optics as fast as f/ 2.7.

This pattern is recommended for general use because it can be used with the fastest telescopes likely to be encountered.


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4.0 Based on 3 Reviews
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United States United States
Wonderful service!

I haven't used it yet, but should be fine. OPT very efficiently swapped it when I got the wrong one due to web page confusion. I've been a customer in the past, and will continue to buy from OPT. Thanks! :-)

Michael T.
United States
Starlight Instruments Holographic Attachment

Useless if your permantently mounted scope is in an observatory and the distance from scope to wall is too short - probably should be around 10 feet, not so in my case, wish I knew that before buying.

Masanori M.
It is very wonderful

Thank you It is very wonderful I'm satisfied. Moreover, I am satisfied also with kind response at the time of ordering