ANTLIA 36mm FILTER ADAPTER Testar installed above the support telescope

installed above the support telescope rings to increase the mechanical rigidity of the telescope (and it allows you to attach other accessories such as guide rings)

Right: OAG PRO with IMX174 sensor showing much less vignetting

The bottom part is threaded (M48x0

Carina Nebula by Stefano Salvi | SkyWatcher Quattro 200 f/4

The absolute encoders provide high-accuracy

ANTLIA 36mm FILTER ADAPTER Testar installed above the support telescopeThe 36mm filter adapter allows you to use 36mm round unmounted filters with the 2" Antlia Filter Slider. The Antlia filter drawer system is composed of three parts the main body base with an optical length of 20mm, plus telescope adapter and camera adapter, which are connected to the main body with four grub screws each. All parts of the Antlia filter drawer system are made of aircraft aluminium and are CNC machined and anodized. Note: each component