SharpStar 0.74x (f/4.8) Reducer for 140PH
SharpStar 0.74x (f/4.8) Reducer for 140PHSharpStar 0.74x (f/4.8) Reducer for 140PHSharpStar 0.74x (f/4.8) Reducer for 140PHSharpStar 0.74x (f/4.8) Reducer for 140PH

SharpStar 0.74x (f/4.8) Reducer for 140PH

£430.00✓ 2 year warranty


Out of stock due 30-40 working days

About this product

Model:  sharpstar_140ph_reducer
Part Number:  140PH Reducer

Dedicated 0.74x Reducer / Flattener for SharpStar 140PH Telescopes

The f/4.8 Focal Reducer for the Sharpstar 140PH Telescope provides excellent image quality across the whole imaging circle of a 35mm full format sensor.

This 0.73x Reducer and Flattener features a triplet air-spaced design and wide aperture that achieve excellent field flatness and illumination over a 44mm image circle.

One end of the reducer features a M88×1 thread that connects to the 140PH focuser while camera side it includes an external male M48×0.75 thread with 55mm back focus distance for connection to popular M48 Camera adaptors and M48 threaded filter Wheels and Cameras. 

The reducer also includes an internal female M48x0.75 thread for attaching a filter.

Incorporates a 360º rotator for convenient framing.


  • Suitable for Sharpstar 140PH
  • Reduces from f/6.5 to f/4.8 focal ratio
  • 44mm Fully illuminated image circle
  • Fully multi-coated,  air-spaced triplet optics
  • 88mm Outer diameter
  • 55mm backfocus
  • Total Length: 106mm (including M48 Thread)
  • Weighs 0.9kg
  • Telescope Model: Sharpstar 140PH

Spot Diagram

Connection Diagram



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