Z4

Introducing the Sharpstar Z4

The Sharpstar Z4 is a state-of-the-art integrated astrograph designed to meet the expectations of the most demanding astrophotographers. With an impressive aperture of 100 mm and a focal ratio of f/5.5, this apochromatic sextuplet air telescope features three lenses at the front and three more at the rear, including two in ED (Extra-low Dispersion) glass for maximum reduction of chromatic aberrations. This advanced design enables the Z4 to deliver outstanding image quality and capture the finest details of the sky, without the need for backfocus calculations, thanks to its self-flattening design.

Advanced Optics and Imaging Precision

• Optical design : Apochromatic quintuplet with advanced multilayer treatment (AS coatings) for high light transmission and reduced internal reflections.
• Effective opening : 100 mm.
• Focal length : 495 mm, offering a focal ratio of f/5.5, ideal for wide-field astrophotography.
• Image circle : 36 mm, perfect for APS sensors, guaranteeing a wide, flat field of view without the need for an additional field corrector.

A Unique 4-Piece Photographic Adapter

• Includes a combination of threads: M86 x 1, M68 x 1, M54 x 0.75 and M48 x 0.75 (with thread for 2" filters), offering extensive compatibility with various photographic equipment.

Ergonomic and robust design

• Elegant design with gray matte finish, clear optical tube and dark gray eyepiece holder for a sober, professional look.
• Multifunctional handle on top for easy transport and assembly, with space for attaching a finder base or other accessories.

Technical specifications

• Focal report : f/5.5
• Image circle : 36 mm, perfect for APS sensors.
• Total length : 482 mm, offering enhanced portability and manoeuvrability.
• Net weight : 4.3 kg, ideal for portable use.
• Rear thread : M48 x 0.75 for extended compatibility with accessories.

A High-Precision Focuser

• Equipped with a wide 3.4" eyepiece holder with 1:10 precision adjustment and 360° rotator for seamless angle and focus adjustments.
• Compatible with 2" filters, offering ease of use for long astrophotography sessions.

Conclusion

Designed to meet the expectations of professional astrophotographers, the Sharpstar Z4 offers a unique combination of high performance, versatility and reliability. Thanks to its 4-piece photographic adapter and advanced optical design, this astrograph is the ideal tool for capturing the beauty of the cosmos with incomparable precision and quality.