Sharpstar 76EDPH f/4.5 Full-Frame reducer (Sharpstar, SKU: 76EDPH f/4.5 Full-Frame Reducer) is a dedicated reducer for the Sharpstar 76EDPH telescope. It shortens the focal length and provides an f/4.5 focal ratio, while its three-element optical design supports full-frame imaging.
Key features
• three air-spaced lens elements • full multilayer optical coatings • standard working distance to the sensor
Included items
• focal reducer: 76EDPH f/4.5 Full-Frame
Technical specifications
• compatible telescopes: Sharpstar 76EDPH • resulting system focal length: 342 mm • resulting focal ratio: f/4.5 • optical design: 3 air-spaced elements • image circle diameter: 44 mm • telescope-side thread: M74 × 1 • camera-side thread: M48 × 0.75 • backfocus: 55 mm • outer diameter: 88 mm • total length including M48 thread: 77 mm • coatings: multilayer on all optical surfaces • weight: 0.5 kg
The reducer widens the imaged area of sky and allows a compatible telescope to photograph extended objects.
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