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Howie Glatter 1.25" TuBlug

Howie Glatter 1.25" TuBlug
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List Price: $140.00
Our Price: $140.00
Focal Length n/a
Eye Relief: n/a
Diameter: 1.25"
Apparent Field n/a
Product Weight: n/a

Quantity in Stock:3
Availability:: Usually Ships in 24 Hours
Product Code: 6403000
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Description Technical Specs Extended Information
 
Howie Glatter 1.25" TuBlug, a tube incorporating a Barlow lens for primary mirror collimation in a newtonian telescope
Features
  • Barlow Lens + Tube

  • Use with laser for accurate primary mirror alignment

  • Screen is visible outside the focuser

  • Allows alignment of primary while behind the scope

  • Compatible with all 1.25" lasers

  • Fits 1.25" focusers or 2" to 1.25" adapters

  • Works great with Howie Glatter Parallizer adapter

Average Rating: Average Rating: 4 of 5 4 of 5 Total Reviews: 4 Write a review »

  0 of 0 people found the following review helpful:
 
3 of 5 It works, but build quality is unimpressive November 17, 2020
Reviewer: Brian Dobbs from Los Osos, CA United States  
It works, so I can't complain, but it was frustrating to find the laser set screw was stripped right out of the box. I have to just live with the fact that my laser is not held captive in the TuBlug. Like I said, it still works (the advantage of a barlowed laser is that the laser alignment is not a factor, after all), but I just know that my laser is going to tumble out and bite the dust hard one of these nights.  I don't think the fundamental design of this set screw would ever work anyways; the screw itself is cheap plastic, and the female threads are cut into the thin-wall tube of the collimator.  Even with a metal set screw, there's just not enough meat in the tube wall for good thread engagement.  
Overall though, it's still better than a home-built barlowed laser, where you run to the front of the scope and crane your neck to look up the focuser every time you make a collimation adjustment.
Kudos to EyepiecesEtc.com for an excellent buying experience, though.  You guys rock!

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  0 of 0 people found the following review helpful:
 
3 of 5 Howie Glatter 1.25" TuBlug November 15, 2020
Reviewer: John Willett from Garrett Park, MD United States  
The unit is nicely made and functional, BUT the nylon (?) thumb screw that's supposed to hold the laser unit into the TuBlug isn't sturdy enough to thread into the only 2-3 threads in the side of the thin sleeve, so it pops out when you try to tighten it -- poor design.
My solution was to substitute a stainless steel 10/32 screw, but the unit should have  been made with either thicker walls or a thicker bushing at the thread location) so that there are more threads to support the soft nylon.

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  0 of 0 people found the following review helpful:
 
5 of 5 Super quick! March 1, 2020
Reviewer: Mark Bungart from Grove City, OH United States  
Could not ask for anything more!

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  0 of 0 people found the following review helpful:
 
5 of 5 Howie Glatter 1.25 inch TuBlug August 26, 2019
Reviewer: michael bechtel from bloomington, IN United States  
Delivery was prompt and I was happy with the information, service, and product.

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