New Arrival … ZWO Seestar S50 all-in-One Smart Telescope
Check out the Specials!! … Random Deals 😉
Polemaster … IN STOCK!
HOT PRODUCT! … Revolution Imager Deluxe
Showing all 12 resultsSorted by popularity
Extends 1.25″ nosepieces and eyepieces to deal with excessive back focus or to obtain greater reduction with screw in focal reducers.
Made of anodised Aluminium, 1.25″ thread (M28.5) at both ends (M – F)
20.5mm – 30mm Variable T Spacer, very useful for finding the exact spacing required for reducers, coma correctors and field flatteners.
The image shows the spacer at the extremes of its adjustment.
The 1mm Stainless Steel Fine Tuning Ring for T thread allows fine adjustment of spacing with much higher precision than with T2 extension tubes. Strength is guaranteed with metal rings, unlike some Delrin types.
A 1.5mm version is also available.
10mm T Spacer
The 1.5mm Stainless Steel Fine Tuning Ring for T thread allows fine adjustment of spacing with much higher precision than with T2 extension tubes. Strength is guaranteed with metal rings, unlike some Delrin types.
A 1mm version is also available
The GSO 35mm 2″ extension tube is the shortest available extension tube in 2″ format. The extension tube is machined from solid aluminium and Black anodised. It has a Brass compression fitting with locking knob and adds an extra 35mm to the back focus – Threaded to accept 2″ Astro filters.
A longer (80mm) version is available here
Price includes UK Delivery
The TS 80mm 2″ extension tube is the longest available extension tube in 2″ format. The extension tube is machined from solid aluminium and Black anodised. It has a Brass compression fitting with locking knob and adds an extra 80mm to the back focus – Threaded to accept 2″ Astro filters.
A shorter version (35mm) is available here
Price includes UK Delivery
Showing all 12 resultsSorted by popularity







