TS OPTICS 2" BARLOWED LASER COLLIMATOR FOR NEWTONIAN TELESCOPES

TS-Optics 2" Barlowed Laser Collimator for Newtonian Telescopes

Features:

• Fits all 2" focusers
• More accurate result with an optimized Barlow lens which is threaded to the 2" receptacle
• The laser collimator is connected to the adapter via twist-lock clamping, this is as precise as threaded together
• The advantage of the barlowed laser is that slight inaccuracies in the focuser / 2" receptacle / laser do not adulterate the adjustment result.
• Only prerequisite is that the Newtonian primary mirror has a central mark.
• The Barlow element can be removed, so the laser can be removed as normal, very precise 2" laser which is even adjustable
• The brightness of the lasers can be set to 7 steps

The well-made Newtonian laser allows a fine collimation of your Newtonian telescope within a few minutes. The accuracy is higher than with a standard 1.25" or 2" Newtonian laser collimator. The main advantage is that slight inaccuracies of the focuser (tilting) or the 2" clamping don´t adulterate the adjustment result, as they are compensated by the Barlow lens. Only prerequisites for the TS Barlowed Laser Collimator are that your Newtonian has a centre mark at the primary mirror and that you have a 2" focuser.

Working with the TS Barlowed Laser is that easy:

• Collimating the secondary mirror:
  The laser beam must strike the center of the primary mirror. This is achieved via collimation of the secondary mirror (adjustment of the adjusting screws at the secondary mirror). The laser beam is widened by the Barlow lens, so the laser point is expanded to an area. For this reason you should set the laser to maximum brightness.
• Collimating the primary mirror:
  Now the reflected laser beam shows the annular shadow of the center mark in the lateral view of the laser collimator. Tilting the laser has no influence on the position, only the adjustment of the primary mirror itself. Thus only the collimation error of the primary mirror remains, which you now can optimally eliminate.

Now you are finished, you have an optimally collimated Newtonian telescope.