Baader VariLock 29 T-2 Extension

Further details

Lockable T-2 extension tube, adjustable 20-29 mm with clamping

Telescope-side connection dimension: T-2 (M42 x 0.75), Eyepiece connection dimension: Optional T-2 (M42 x 0.75) or T-2 Ring Schwalbe 52 x 6.5mm optical length: 20-29 mm continuously adjustable over millimeter scale

Outer diameter: 50.8mm / 2 "inside diameter: with eyepiece side T-2 thread insert = 38mm with 52mm dovetail eyepiece sided = 41mm

Weight (kg) 0.087
Optical length (mm) 20 – 29
T-2 Part # 25V
Usage to set precise focus distance
Screw Type 6x M1,3 Allen wrench screws
Outer Diameter 50,8 (2")
Inner Connection (lens sided) Thread, T-2 (M42 x 0,75)
Outer Connection (eyepiece/-camera-sided) Thread, Dovetail ring, T-2 (M42 x 0,75)
Compatible Brands Astro T-2, Baader Planetarium
Type of Adapter Extension

Delivery charge £5.95

Reviews

  Great product and service  Just a quick one. This was the perfect thing for setting my coma corrector spacing. Also, it arrived the next day, so I can't fault any aspect of it!  (10/04/2022) Tom - Far East of Dean

  Nicely made thing that does what it does well.  For fine tuning back focus this is one of the few things that provides 'infinite adjustment'; More convenient than spacers and shims. Well made and, despite the lack of any instructions, pretty straightforward to use. The ring sorts the backfocus (lock with tool).The allen screws sort rotation.  (05/09/2021) Geoff - Gloucestershire

  Excellent item, great price, & quick delivery  It’s not a particularly intricate part but it is ideal for setting the correct back focus distance for my telescope camera. It’s well made, at a reasonable price and was delivered promptly.  (23/02/2021) Sam - Nottingham