Askar FRA600 apochromatic refractor

Askar FRA600/5.6 - The High-Performance Quintuplet Astrograph for Astronomers and Astrophotographers

Discover the latest addition to the Askar FRA series: the FRA600/5.6 astrograph. Designed to push back the boundaries of astrophotography and astronomical observation, the FRA600/5.6 combines state-of-the-art optics with innovative features to deliver an unrivalled observing experience. Ideal for capturing the finest details of the sky, this 4.3-inch instrument is much more than just a telescope: it's a precision tool for the most demanding astronomy enthusiasts.

Key features

• 108mm diameter: for fine detail in nebulae and galaxies while maintaining an attractive f/d ratio!
• 600mm focal length with f/5.6 aperture ratio: offering a perfect balance between wide field and precise detail, ideal for deep celestial objects.
• APO Quintuplet "Air-Spaced" design: composed of a triplet at the front and a doublet at the rear, incorporating two ED glass lenses for optimum control of chromatic aberration and exceptional image quality.
• 66mm image circle: allowing full-format sensors to be fully exploited, without the need for additional field correctors.

Superior quality optics:

The FRA600 is based on a Petzval-type design that guarantees outstanding apochromatic performance. Thanks to rigorous optical construction and the integration of ED glass, this astrograph limits distortion and preserves sharpness right to the edges of the image. Stars appear round and sharp, even across the entire wide field, for breathtakingly detailed shots. The two 80mm rear lenses balance the illumination of the field, optimizing the brightness and clarity of your images.

Designed for Impeccable Observations and Images

• High-precision focusing: equipped with a 4.2-inch rack-and-pinion focuser with 1:10 focus adjustment, the FRA600 offers unrivalled stability and precision, enabling perfect focus to be maintained even with heavy accessories. The smooth, slip-resistant focusing mechanism guarantees smooth adjustments for razor-sharp images.
• Full-frame support: with an image circle of 66mm, the FRA600 easily covers full-frame sensors, making your images always sharp, without vignetting, and without the need to calculate backfocus or use a corrector.
• Versatility with adapters: the FRA600 comes with several connection options, including a standard tapered adapter with M54x0.75 and M48x0.85 threads, facilitating compatibility with a wide range of astrophotographic equipment.

Rugged and portable

The FRA600 combines robustness and practicality for optimized use. With a tube diameter of 125mm and a retractable lens hood, it measures just 493mm when folded, making this quintuplet easy to transport. Perfect for astronomers on the move or outdoor astrophotography enthusiasts.

Accessories Included

• Multifunctional tube rings: anodized in red, these rings feature mounting points on three sides for easy attachment of various accessories, such as a guide sight.
• Multi-functional handle and 300mm dovetail plate: ensuring a secure grip and stable fixing for fast, flexible installation.
• Various adapters: including a rear adapter (M108x1 male thread, M90x1 thread, 2" and 1.25" adapters) and a tapered adapter to suit a wide range of configurations.
• Additional options: a 0.7x reducer is available to further expand your astrophotography possibilities.

Uncompromising performance and versatility

Whether you're a professional astrophotographer or a demanding amateur, the FRA600 excels in all situations. In addition to its ability for wide-field photography, it is also suitable for high-quality observation, with exceptional correction of chromatic aberrations. Images captured with the FRA600 are characterized by impressive contrast, doing justice to every celestial detail.

The FRA600/5.6 is much more than a classic APO triplet telescope. With its five optical elements and advanced engineering, it outperforms its competitors in the same price range, setting a new standard in astrophotography and observation.

Order the FRA600/5.6 today and take your astronomical explorations to the next level.

Standard packaging: The product weighs 6.5kg, with a total weight of 7.8kg (not including the aluminum case), ensuring optimum protection during transport.

Every detail of the FRA600 is designed to deliver an uncompromising astrophotography experience, so you can capture the beauty of the universe with exceptional clarity and precision.