Product no.: 21636Manufacturer: Howie Glatter
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The tuBlug is the answer for those who want to Barlow-collimate their primary from the back of the scope, but have a solid tube Newtonian, or can't be bothered to slide their shroud up.It's a Blug (Barlowed laser plug), containing its own lens and shadow screen that fits within a side cut-out tube, the combination being known as a tuBlug. Like the collimator self-Barlow attachment or the Blug, it uses the Barlowed laser principle to project a silhouette shadow of the primary mirror collimation mark back onto its white screen, where the shadow is centered to collimate the primary. The tuBlug comes in 1 1/4" and 2" sizes, fits any focuser, and can be used with any well-centered laser collimator.
This is one of the best and most ingenious inventions of recent years for collimating Newtonian telescopes. It can not only quickly and easily check and adjust the secondary mirror. But the usually extremely tricky centring of the focuser can also be extremely easily carried out. Whilst not the cheapest type of laser collimation devices, it is by far the best and most to be recommended.
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27.11. - 30.11.