William Optics 0,79x Ultra Flat 132 reducer (P-FLAT-132) extras opinie

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The William Optics Ultra Flat 132 0.79x Focal Reducer (SKU: P-FLAT-132) is designed specifically for the Fluorostar 132 telescope. It produces full-frame, high-resolution images across the entire field of view by reducing the telescope's focal length by a factor of 0.79x and lowering the aperture to f/5.53. Its three-group, three-element optical design ensures excellent field correction and minimizes aberrations. The reducer provides a 43.2mm image circle, suitable for full-frame and APS-C format sensors.

Key features

• designed for the William Optics Fluorostar 132 telescope
• focal length reduction factor 0.79x – change of aperture to f/5.53
• full-frame coverage (image circle diameter 43.2 mm)
• high image quality thanks to the 3-group/3-element design
• no adjustment required – use a PVC washer if necessary
• compatibility with APS-C and Full Frame sensors

Set components

• William Optics Ultra Flat 132 0.79x reducer
• protective caps

Technical parameters

• optical design: 3 groups / 3 elements
• total length: 137.5 mm
• thread on the telescope side: M92 × 1 (depth 6.5 mm)
• camera side thread: M54 × 0.75 (depth 4 mm)
• backfocus: 55 mm
• Picture circle diameter: 43.2 mm
• compatible matrix format: APS-C / Full Frame
• weight: 1096 g