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SV193 0.8x focal reducer for 2" refractors

SVBONY ★ 3.7/5 · ItemOracle Score Mid-Range

$116 USD
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SVBONY SV193 Focal Reducer 2 Inch 0.8X Field Flattener Telescope Accessory for SV503 80mm F7 ED Telescope

2" focal reducer and field flattener for refractor telescopes; reduces exposure distortions and accepts 2" filters. user note highlights improved edge-point clarity

Highlights

  • 0.8x focal reduction
  • 2-inch input and M48 output
  • field flattener for astrophotography

Pros

  • 2-inch front socket for main lens
  • 0.8x focal reduction for shorter exposure
  • M48x0.75 threading to camera bayonet
  • accepts 2-inch filters
  • supports full-frame cameras

Cons

  • front end is 2-inch; may require adapters for non-2-inch setups
  • requires compatible telescope model SV503 80mm F7 ED

Best For

  • astrophoto with edge-to-edge flat field
  • short-exposure imaging of wide-field targets
  • light-pollution filter integration
  • astro-signal capture on refractor telescopes
  • camera integration via M48 thread
  • items for 2-inch filter-equipped setups

Features

  • 2-inch focal reducer and field flattener for refractor telescopes
  • 0.8x reduction minimizes edge-star distortion in images
  • Rear M48x0.75 threaded mount compatible with camera bayonet
  • Accepts 2-inch filters via standard 2-inch thread
  • 50-70 character bullets not added; 0.8x defocusing system shortens exposure time

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