Howie Glatter Parallizer 2" to 1.25" reducer adapter (23927)

There's a common misconception regarding cylindrical slip-fit systems used for eyepieces and optical accessories, often focusing on centering. While some adapters and holders are marketed as "centering" or "self-centering", even if an accessory is slightly pushed off-center by clamping, it's not a significant issue as long as the accessory and holder axis remain parallel.
₪829.72

Howie Glatter Self-Barlow attachment (61863)

The self-Barlow attachment is a circular device featuring a white screen on the front and a compact built-in Barlow lens at its center. Designed to be screwed into the aperture of the Howie Glatter laser collimator (available separately), this attachment offers a streamlined approach to Barlow-collimating.
₪799.86

Howie Glatter TuBlug 2'' (21636)

For those seeking to Barlow-collimate their primary mirror from the rear of the telescope, particularly in scenarios involving solid tube Newtonians or when adjusting the shroud is inconvenient, the tuBlug provides an ideal solution.
₪1,832.44