7,500+ items available from stock
Best price guarantee
Your partner for astronomy

Product description


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.

Our expert comment:

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.



Connection (to the telescope)
Howie Glatter TuBlug 2''
Howie Glatter TuBlug 2''
Howie Glatter TuBlug 2''

Customer reviews

There are no customer reviews for this product yet.

Compose your own review

Do you have specific questions about your order or products? Please contact our customer service!

Customers who bought this product also bought...