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Sky-Watcher 0.77x Reducer/Flattener for Esprit 150 - S20215

Sky-Watcher 0.77x Reducer/Flattener for Esprit 150 - S20215

Highlights

  • 34mm fully illuminated field but can handle full frame as well
  • 95mm back-focus (55mm when back focus spacer and M48 ring installed)
  • Drops f/ratio from native f/7 (840mm) to f/5.4 (647mm)
  • Reduces exposure time by 68% compared to native f/7
  • Built-in 2" filter cell for mounting filters
  • 3.18 x 2.12-degree field of view when used with a full frame camera
  • 2.08 x 1.39-degree field of view when used with APS-C crop sensor 
$136.69

Original: $390.55

-65%
Sky-Watcher 0.77x Reducer/Flattener for Esprit 150 - S20215—

$390.55

$136.69
Product image 1

Description

Highlights

  • 34mm fully illuminated field but can handle full frame as well
  • 95mm back-focus (55mm when back focus spacer and M48 ring installed)
  • Drops f/ratio from native f/7 (840mm) to f/5.4 (647mm)
  • Reduces exposure time by 68% compared to native f/7
  • Built-in 2" filter cell for mounting filters
  • 3.18 x 2.12-degree field of view when used with a full frame camera
  • 2.08 x 1.39-degree field of view when used with APS-C crop sensor