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Sky-Watcher EvoGuide ED50 50/242 mm
EvoGuide 50ED — 50/242 guidescope The EvoGuide 50ED is a compact 50 mm ED guide telescope with a 242 mm focal length and f/4.8 focal ratio. Its low-dispersion objective offers improved colour correction in a portable guidescope format.
Focus and camera use Helical focusing provides fine adjustment for a guide camera. The original version is equipped with a finder bracket for attachment to a suitable telescope.
Optional imaging correction The dedicated EvoGuide 50ED field flattener is a separate accessory. Use its instructions for sensor spacing and camera attachment when configuring the guidescope for imaging.
Sky-Watcher manufacturer documentation
Additional specifications
Reference
SW0406
Data sheet
Aperture (mm)
50
Focal length (mm)
242
Focal ratio
f/4.8
Model
EvoGuide 50ED — 50/242 guidescope
Mounting
Finder-bracket mounting
Optical design
ED refractor guidescope
Optional corrector
Dedicated EvoGuide 50ED field flattener
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EvoGuide 50ED — 50/242 guidescope The EvoGuide 50ED is a compact 50 mm ED guide telescope with a 242 mm focal length and f/4.8 focal ratio. Its low-dispersion objective offers improved colour correction in a portable guidescope format.
Manufacturer model: EvoGuide 50ED — 50/242 guidescope · Specifications checked against manufacturer data on 2026-11-04