Skywatcher Reducer/Corrector (.85x) for ProED / Evostar 120

SkywatcherSKU: S20202

Price:
Sale price$550.00 CAD
Stock:
On Backorder — ships when available
  • Description
0.85x Focal Reducer/Corrector for Sky-Watcher PRO 120 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher PRO 120 ED APO, this superb quality accessory effectively reduces the telescope’s focal length by a factor of 0.85x and provides much improved field-edge correction. Features:
  • 55mm back focus
  • M48 threads (not standard T-thread)
  • Drops ProED 120 from f/7.5 to f/6.3

You may also like

Recently viewed

Recent Blog Posts

View all
Guide scope or off-axis guider: a PHD2 guide graph reporting 0.41 arcsecond RMS beside elongated stars from the same night

Your Guide Graph Is Lying to You

astrophotography Stephen Mallia
You drove ninety minutes to dark sky, PHD2 held 0.4 arcseconds all night, and half your subs still have eggs for stars. Here are the three things your

Read More
V-size Vixen and D-size Losmandy dovetail bar profiles compared to scale, about 44 mm against 75 to 84 mm

D-Size vs V-Size: A Complete Guide to Telescope Dovetail Systems

Stephen Mallia
What's the difference between D-size and V-size telescope dovetails? Here's everything you need to know.

Read More
A 55 mm back focus imaging train: spacer 16.5 mm, filter drawer 21 mm and camera sensor depth 17.5 mm, measured from the rear of the reducer

What Is Back Focus in Astrophotography? Telescope Reducers, Flatteners, and Spacing Explained

Stephen Mallia
What Is Back Focus in Astrophotography? Telescope Reducers, Flatteners, and Spacing Explained Back focus is one of those astrophotography terms that c

Read More