Sharpstar 1.0x Flattener for 61EDPH III
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The flattener reduces the curvature of the image field and thus improves the image quality in the corners.
The flattener reduces the curvature of the image field and thus improves the image quality in the corners.
Codice articolo: SHFLAT61
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)
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 |