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Sharpstar 0.75x Reducer for 61EDPH III

Name: Sharpstar 0.75x Reducer for 61EDPH III
Brand: Askar Sharpstar
SKU: SHRED61
Price: 298 EUR

With the reducer, the focal ratio of 61EDPH Ⅲ is reduced to f/4.4 and the focal length is reduced to 270 mm, making the telescope the first choice for deep sky astrophotography.

Specially calculated for 61EDPH III

Quadruplet design for high image quality

Focal reduction by 0.75x

Focal length with 61EDPH III: 270 mm, f/4.4

44 mm corrected field of view (full-frame format)

Camera connection via M48 thread (55 mm working distance) or M54 thread (75 mm working distance)

Manufacturer: Askar Sharpstar

Product number: SHRED61

EUR 298,00RRP EUR 322,00you save 7.5% (EUR 24,00)

incl. 19 % VAT (DE)

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excl. 6.95 € shipping costs (DE)

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Sharpstar 0.75x Reducer for 61EDPH III

With the reducer, the focal ratio of 61EDPH Ⅲ is reduced to f/4.4 and the focal length is reduced to 270 mm, making the telescope the first choice for deep sky astrophotography.

Specially calculated for 61EDPH III

Quadruplet design for high image quality

Focal reduction by 0.75x

Focal length with 61EDPH III: 270 mm, f/4.4

44 mm corrected field of view (full-frame format)

Camera connection via M48 thread (55 mm working distance) or M54 thread (75 mm working distance)

Details..
Technical data..
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Sharpstar 0.75x Full-Frame Reducer for 61EDPH III

The reducer adopts an air-spaced quadruplet structure, supporting full-frame imaging. With the reducer, the focal ratio of 61EDPH Ⅲ is reduced to f/4.4 and the focal length is reduced to 270 mm, making the telescope the first choice for deep sky astrophotography.

One end of the reducer features an M68×1 female thread to connect to the focuser draewtube, the other end of the reducer has an M48×0.75 male thread with built-in 2" filter thread. The back focus is 55 mm. If it needs to be extended, the reducer can be split to reveal an M54×0.75 female thread, and the back focus becomes 75 mm.

Structure:	Air-spaced quadruplet design, fully multi-coated
Intended for telescopes:	Sharpstar 61EDPH III
Focal length reduction:	0.75x
Focal length with 61EDPH III:	270 mm, f/4.4
Corrected and illuminated field of view:	44 mm
Telescope side connection:	M68x1 female thread for 61EDPH III pullout
Camera side connection:	M54x0.75 female thread, M48x0.75 male thread with 2" filter thread
Backfocus:	55 mm from M48 thread, 75 mm from M54 thread
Weight:	0.4 kg