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All New Adjustable Flat6AIII Field Flattener

$234.46

This very elegant 2″ reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors. WO Flat 6AIll will provide good illumination and flat field across 97% of full frame sized sensors.

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All New Adjustable Flat6AIll field flattener (T-mount not included)

Field flattener / X0.8 Reducer.

This very elegant 2″ reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors. The Flat 6AIll will provide good illumination and flat field across 97% of full frame sized sensors.

Where the field curvature is corrected in the telescope, if you are using a refractor for deep sky astrophotography, then you need a field flattener to correct for the field curvature of your instrument.

A flattener flattens the field of view and ensures round and sharp stars all around the frame.

Full frame size

  • Designed with nearly Full frame chip-size DSLR cameras in mind.
  • FMC tripllet APO design.
  • Produced entirely with the best Ohara optical glasses.

Reducing factor 0.8X.

  • Adjustable design, for perfect back focus it can be used with other models of refractor
  • 48mm filter ready

Superb Finish

  • William Optics polished anodized finish.
  • All internal surfaces threaded and blackened to prevent reflections.

Easy to Use 
Will accept any standard 48mm T-ring for your camera.

Suitable for
GT71, GT81, Z103, Z126.

Adjust Distance

Z71    11.8mm
GT71    9.3mm
GT81    7.9mm
Z103    4.6mm
Z126    1.4mm

Weight0.5 kg
Dimensions8 × 8 × 10 cm

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