Sharpstar F4,8 reducer for 140PH

Introducing the Sharpstar f/4.8 Professional Focal Length Reducer, designed specifically for the Sharpstar 140Ph f/6.5 optical tube. This remarkable accessory enhances the luminosity to f/4.8 and enables compatibility with full-frame sensor cameras.

The optical design of this reducer features a classic triplet configuration with an air gap. To ensure optimal performance, all lenses are coated with a full multi-layer coating, effectively eliminating unwanted light reflections and enhancing contrast. The back focus of the reducer, when used with the attached rotator, is set at the standard 55 mm. However, by disassembling the rotating part, the back focus can be extended up to 105 mm.

Encased within a precisely crafted metal housing, the excellent optical system remains well protected, even when coupled with heavy cameras or SLRs. This sturdy construction ensures durability and maintains alignment in various demanding conditions.

Key Features of the Sharpstar f/4.8 (140PH) Reducer:

Professional focal length reducer designed for use with the Sharpstar 140Ph f/6.5 telescope.

Consists of a three-element optical system with fully multi-coated lenses.

Robust metal housing with a screw-in rotator, providing resistance to damage.

Technical Specifications:

• Optical System: Triplet with an air gap.
• Anti-Reflective Coating: Full multi-layer coating (FMC).
• Compatible Telescope: Sharpstar 140PH APO.
• Reducer Multiplicity: 0.74x.
• Light Transmission with Reducer: f/4.8.
• Full Illumination Wheel Diameter: 44 mm.
• Back Focus (with rotator): 55 mm.
• Telescope Side Thread: M88x1.
• Camera Side Thread: M48x0.75.
• Body Material: Metal.
• Outer Diameter: 88/80 mm.
• Length: 106 mm.
• Weight: 900 g.

Included Components:

• Sharpstar f/4.8 (140PH) reducer.

Guarantee:

This product comes with a 24-month guarantee, ensuring peace of mind and customer satisfaction.