Sharpstar 1.0x Flattener for 61EDPH III

The flattener reduces the curvature of the image field and thus improves the image quality in the corners.

♦ Specially calculated for 61EDPH III

♦ Triplet design for high image quality

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

♦ Camera connection via M48 thread (55 mm working distance) or M54 thread (81.5 mm working distance)

 

Sharpstar 1.0x Full-Frame Field Flattener for 61EDPH III

The flattener adopts an air-spaced triplet structure, the peripheral light reduction control is excellent, can effectively improve the curvature of the field, improve the corner image quality, and reduce aberrations, so that users can take clearer astronomical photos.

One end of the flattener features an M68×1 female thread to connect to the focuser drawtube, the other end of the flattener 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 flattener can be split to reveal an M54×0.75 female thread, and the back focus becomes 81.5 mm.
 

Structure:	Air-spaced triplet design, fully multi-coated
Intended for telescopes:	Sharpstar 61EDPH III
Focal length extension:	1.0x (no extension)
Corrected and illuminated field of view:	44 mm
Telescope side connection:	M68x1 female thread for 61EDPH III pullout
Camera side connection:	M54x0.75 female male thread, M48x0.75 male thread with 2" filter thread
Backfocus:	55 mm from M48 thread, 81.5 mm from M54 thread
Weight:	0.4 kg

In the box:
♦ Flattener
♦ Dust caps