2″ Extension Tube (50mm)
47,00 €GSO 2″ Extension Tube (50mm) helps you if you can’t reach focus with your telescope. This is common with some Newtonian telescopes.
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GSO 2″ Extension Tube (50mm) helps you if you can’t reach focus with your telescope. This is common with some Newtonian telescopes.

2″ Extension Tube (60mm) helps you if you can’t reach focus with your telescope. This is common with some Newtonian telescopes.

2″ Filter Adapter For Seestar S50
This can be plugged into front of Seestar S50 so you are able to attach filters.

Please notice: This is a new version, which is not compatible with the older M42 filter drawer. 2″ Filter holder for ZWO M42/M54 Filter Drawer.

2″ Metal Bahtinov mask for Seestar S50
Thread M48*0.75mm, can be mounted to dew shield (TA449) or 2inch filter adapter (TA441), and then plug into Seestar S50.
Dew shield and filter adapter

Single piece serves multiple purposes:
2″ Push-in Nosepiece for 2″ Diagonals
M48 (36mm) Extender for 50mm Guider

Easily adapt your FLAT 6AIII to any 2″ telescope focuser, except for Twenty Years Anniversary Edition.

2″ adapter with SCT threads. Can be used to attach SCT field flatteners directly to 2″ focuser.

The Castell UHC filter is a filter for observing emission nebulae. Its passband is optimized for H-beta and OIII emissions. The UHC filter provides better contrast when observing and imaging emission

ZWO 2″ UV and infrared blocking filter The filter blocks out ultraviolet and infrared light. This will improve the image on many telescopes. Sensors from webcams or CCD cameras are sensitive to UV and

Designed for deep sky and planetary imaging, especially for CMOS and CCD cameras.


The filter adapter ring that allows you to use the filter with a smaller filter thread size. No need for buying another set of filter drawers, the 2”-1.25” filter adapter ring will help you directly f

This William Optics dovetail plate has both “Manfrotto and Arca Swiss size at opposite side design“ the plate also has two 1/4-20 threaded hole , it’s so easy to use with most camera and camera l

A high quality iOptron 25mm Plössl 1.25″ eyepiece with a 50 degree field of view.

A high quality iOptron 25mm Plössl 1.25″ eyepiece with a 52 degree field of view.

iOptron 2kg Counterweight for the following iOptron mounts: CEM26/CEM26EC GEM28/GEM28EC AZ Mount Pro iEQ30/iEQ30 Pro CEM25/CEM25P/CEM25EC ZEQ25 The counterweight can also be used with other mounts tha

This 2 kg (4.5lb) counterweight is designed for following iOptron mount:
CEM26/CEM26EC
HEM27/HEM27EC
GEM28/GEM28EC
HEM44/HEM44EC
AZ Mount Pro
iEQ30/iEQ30 Pro
CEM25/CEM25P/CEM25EC

Each of the four elements in this barlow are fully multi-coated, resulting in bright, sharp images. The lenses are edge-blackened to eliminate internal light scatter to maximize image contrast.

Svbony 1.25” 2x Barlow lens for standard 1.25” telescopes, it has M42 thread, so it can connect with your camera, you just need an adapter, it’s perfect!


This barlow uses prism instead of glass elements to enlarge the image. High quality FMC coating.

3.5″ to 2″ RotoLock visual back adapter. Secure twist-lock mechanism for 2″ eyepieces without thumbscrews.

ZWO 30mm f/5 Mini guidescope Introducing the new ZWO 30mm f/5 Mini guidescope, the next version of the popular ZWO 30mm f/4 guidescope. This new version offers a 150mm focal length at f/5 compared to