Svbony SV555 - 54mm f/4.5 Petzval APO Full Frame Telephoto Lens - F9395A avx When it is cooled to

When it is cooled to 0ºC

75 mm threads

Seestar S30 Pro instantly identifies and labels constellations in your view

7 g) Dimensions: 116 mm x 60 mm x 60 mm (4

Renishaw Encoder mounted directly on the RA shaft

Svbony SV555 - 54mm f/4.5 Petzval APO Full Frame Telephoto Lens - F9395A avx When it is cooled toSvbony 54 mm f 4. 5 Full Frame Telescope Lens Wide Field Petzval Design 3 group 5 piece objective lens structure 44mm Full Frame Accommodates APS & Full Frame camera Single Speed Focus An EAF kit is included should you wish to upgrade to autofocus with the optional ZWO EAF Electronic Automatic Focuser F 22 to F 4. 5 Aperture Range Graded adjustment ring and scale, convenient to use; Multi Compatibility M48x0. 75 filter thread & 186mm dovetail plate