Secondhand & Stock

Suitable for: Focusers with a dovetail ring with 79-80 mm diameter Base for focusers

Item condition: new, but not original packed

Crayford 3" focuser with 1:10 reduction, 360° rotation. With connection adapter with 108mm threaded connection.

Item condition: new, but not original packed

TS-Optics 1.25" and T2 Micro Helical Focuser - T2 connection

Item condition: new, but not original packed

Omegon Variable Polarising Filter 2"

Item condition: new and original packed

TS variable T2 and 1.25" Extension + Helical Focuser

Item condition: new, but not original packed

TS Optics Non rotating helical focuser with M48 connection A true helical focuser like this works like a camera objective - when you turn the focusing ring, neither the lens nor the camera (or eyepiece and diagonal) will rotate. The only motion is in and out. The advantage of this helical focuser is the fine adjustment, possible in part due to the fine pitch of the focusing ring's thread, and in part due to the large diameter of the ring. In the case of this helical focuser, virtually backlash-free movement and graduated markings on the focusers allow repeatable return to the focus point simply by noting the focus position reading. Advantages at a glance no rotation of the diagonal or camera - the only motion is in and out precisely adjustable limitedly self-locking wide focus range: 40 mm 51 mm minimum height, 91 mm maximum height easy adaption to the telescope tube and the camera good solution for telescope or objective self construction M48x0.75 (2" filter) threads at both sides, with all adaption possibilities generous clear aperture of 45 mm also suitable as variable M48 extension 51 mm to 91 mm for the perfect working distance two screws for locking the drawtube Wide focussing range and short length The Helical focuser has a wide focussing range of 40 mm, but it is very short, with a minimum height of only 51 mm. So you can use the focuser on telescopes or telephoto lenses with little space to the focus point, like Newtonians. Accessories This focuser is not suitable for heavy accessories, it will tilt. The main use is with small CCD cameras for planetary photography, 1.25" eyepieces and lightweight 2" eyepieces. Delivery contents Helical Focuser with 2 locking screws

Item condition: new, but not original packed

Skywatcher 2" focuser with 1:10 reduction and 360° rotation, connection thread (inner) 121mm. With finder bracked

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

303 mm Base for the CRF focuser

Item condition: new and original packed

Starlight Stepper Motor for 2" FeatherTouch Focusers

Item condition: new, but not original packed

Starlight flat Base for 2.5" Feather Touch with leveling screws

Item condition: new and original packed

Starlight 3" End Cap for FTF32XX TRUE 3.0 Feather Touch Focuser Starlight End Cap for TRUE 3.0" Feather Touch to 3" with compression ring This end cap fits the Feather Touch TRUE 3.0" focusers and has a 3.0" compression ring opening which 3 machined thumb screws. It is machined of the highest quality aluminum and finished in our shop, keeping the same beautiful look and high precision quality that Starlight Instruments is known for. Scope of Delivery: Adapter

Item condition: new, but not original packed

Starlight Instruments End Cap for 3" FTF30XX focusers with 2" compression ring

Item condition: new and original packed