Baader Planetarium VariLock 29 Lockable T-2 Extension Shell with Wrench - Black

Lockable T-2 extension sleeve, infinitely adjustable 29-46 mm with ring and Allen wrench Telescope-side connection dimension: T-2 (M42 x 0.75), Eyepiece Connection size: Optional T-2 (M42 x 0.75) or T-2 dovetail 52 x 6.5mm Optical length: 20-29 mm continuously adjustable on a millimetre scale Outer diameter: 50.8mm/2 inch inner diameter: eyepiece-sided with T-2 thread insert = 38mm with 52mm dovetail eyepiece-sided = 41mm Scope of delivery: Baader VariLock 29, lockable T-2 extension tube with ring wrench # 25Y