Sky-Watcher Reducer/Flattener for Esprit
Top Pick
Sky-Watcher

Sky-Watcher Reducer/Flattener for Esprit

4.7

Best optical correction tool for serious wide field astrophotography enthusiasts.

This optical accessory significantly shortens exposure times while flattening the image field for cleaner, sharper astrophotography. It transforms the native focal ratio to provide a wider field of view, making it an essential upgrade for capturing deep-sky objects with greater efficiency.

$525.00

In stock

at

Astronomics

Accessory Type Adapter
Telescope Compatibility Esprit 120

Who it's for

  • Astrophotographers seeking professional-grade image quality across full-frame sensors
  • Deep-sky imagers looking to capture faint nebulae more efficiently
  • Esprit telescope owners wanting a reliable, high-performance optical match

Who should skip it

  • Multi-scope users looking for a universal focal reducer
  • Beginners who find complex optical spacing and shimming difficult
  • Budget-conscious hobbyists prioritizing cost over specialized optical correction
  • Multi-scope users needing a versatile tool for various optical tubes
  • Budget-conscious hobbyists managing strict equipment expenses
  • Novice astrophotographers who find complex spacing requirements challenging

Performance breakdown

Imaging Efficiency

Drastically cuts exposure times, making deep-sky imaging significantly more efficient.

Excellent

Field Correction

Delivers crisp, edge-to-edge sharpness across large full-frame sensors.

Excellent

Integration Versatility

Flexible back-focus options accommodate a wide range of camera setups.

Excellent

Filter Convenience

Built-in cell simplifies swapping filters without dismantling your imaging train.

Excellent

Build Precision

Robust construction ensures optical alignment remains stable during long sessions.

Excellent

Sensor Compatibility

Optimized for both APS-C and full-frame formats without vignetting issues.

Excellent

Key Specs

Focal Ratio

f/5.4

Reduced Focal Length

647mm

Back-focus

95mm (55mm with spacer)

Filter Compatibility

Built-in 2-inch filter cell

Sensor Compatibility

Full frame and APS-C

Telescope Compatibility

Esprit 120

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Sky-Watcher Reducer/Flattener for Esprit

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