Brand: SharpStar

Sharpstar 61EDPHIII f/4.4 Full-Frame Reducer (61EDPHIII-FFR)

61EDPHIII-FFR

Brand: SharpStar

Sharpstar 61EDPHIII f/4.4 Full-Frame Reducer (61EDPHIII-FFR)

61EDPHIII-FFR

The special full-frame reducer of 61EDPH Ⅲ: One end of the thread is M68 × 1, connected to the focuser; the other end of the thread is M48 × 0.75 and has a built-in 2" filter thread.
  • Quadruplet air-spaced structure
  • 55mm back focus length
  • 44mm image circle - supports full frame
  • Designed for the 61EDPH III
$199.00 USD

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Product Description

The special full-frame reducer of 61EDPH Ⅲ: One end of the thread is M68 × 1, connected to the focuser; the other end of the thread is M48 × 0.75 and has a built-in 2" filter thread. The back focus is 55mm. If it needs to be extended, the adapter can be screwed down to reveal the M54 × 0.75 male thread, and the back focus becomes 75mm. The focuser adopts a quadruplet air-spaced structure, supporting full-frame imaging. With the reducer, the focal ratio of 61EDPHⅢ is reduced to F4.4 and the focal length is reduced to 270mm, making the telescope the first choice for deep sky astrophotography.

What's in the Box

  • Full Frame Reducer

Specifications

Application 61EDPH III Only
Focal ratio f/4.4
Image circle 44mm
Lens quadruplet air-spaced structure
Back focs 55mm (including the M48 thread)
Length 103.46mm (including the M48 thread)
Coating full-surface multi-layer coating
Weight 0.4kg

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