Starlight Instruments TuBLUG 2" Newtonian Collimator | SI-TUBLUG2 newtonian Our LED is very dim

Our LED is very dim but in case you don’t like it on you can switch it off

or through the free to download ASCOM PMC-Eight™ driver and POTH Client to connect to your favorite ASCOM Compliant Astronomical Software

On smaller telescopes the ER filter is seen as a red looking filter installed at a slight angle (to remove internal ghosting)

High Near-Infrared Sensitivity

Red Glass Filter – The final filter is another piece of the red glass (without the IR coating)

Starlight Instruments TuBLUG 2" Newtonian Collimator | SI-TUBLUG2 newtonian Our LED is very dimUse with a regular laser collimator in single beam mode to perform barlowed laser Newtonian primary mirror alignment on closed tube reflectors. The Howie Glatter TuBLUG is inserted into the focusers' draw tube in which the laser collimator then attaches to the otherside of the TuBLUG. Matte white 45 degree face and anti reflection coated Barlow lens mounted in a central axial hole. The Howie Glatter TuBLUG is easily visible from primary adjustment