The adapter allows connecting 2" accessories to adapters, correctors and focusers with male M48x0.75 thread

• Telescope-sided connection: M48x0.75 thread (female)
• Eyepiece-sided connection: 2" receptacle (female)
• Length: 40 mm
• Locking via 2 knurled screws and brass compression ring

Designed for attaching a Canon DSLR camera to any of the Sky-Watcher 0.85x Focal Reducer/Correctors.
M48 rings are used for larger format imaging. These are different than the standard T-Thread and are not suitable for use on our Collapsible Dobsonian line. M48 rings are to be used on the Esprit and ProED series when using the dedicated field correctors. 

• This smartphone adapter connects your smartphone to a telescope, binocular, spotting scope, or microscope, so you can capture images and video through the eyepiece.
• Works with most smartphone devices.
• Compatible with most telescope eyepieces and any eyepiece with an outside diameter measuring from 29mm to 45mm.
• Simple to use! Place your phone in the adapter, center your phone’s camera over the eyepiece, and use the knobs to secure the adapter in place.
• Durable, metal bodied adapter stands up to rigorous use in the field and harsh weather conditions.