Sky-Watcher 0.77x Reducer for Esprit 150ED Triplet
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Sky-Watcher 0.77x Reducer for Esprit 150ED Triplet

£299.00✓ 2 year warranty

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3x in stock shipped 1-2 working days

About this product

Model:  skywatcher_reducer_esp150
Part Number:  20096

Optically matched for the Sky-Watcher Esprit-150 ED Triplet refractor telescope.

Provides a fully illuminated and corrected 36mm image circle suitable for sensor formats up to APS-C. 

This three-element focal reducer/flattener has a reduction factor of 0.77x. for imaging at f5.4.

55mm back focus for use with M48 Canon EOS or Nikon adaptor rings. 

Includes a standard adaptor with M48 thread. 

Removing the adaptor reveals an M71x1 internal thread with maximum 75mm back focus for self-made adaptor solutions. 

 

Features & Specification

  • Three-element design
  • Fully Multi-Coated optics
  • 36mm Imaging Circle
  • 2-Inch filter compatible
  • 75mm back focus or 55mm with supplied adaptor
  • M42x0.75 adapter (T2)
  • Green anodised aluminium screw-on end caps
  • Net weight 910g (with end caps)

 

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FAQ

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Q1. Is this necessary if I use the EvoGuide 50ED only as a guidescope?

No. Guiding software is only interested in the centre of the star and is usually very tolerant of star shape so a flattener is not necessary.

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