Askar FRA400C Bezel

Askar FRA400C - APO Quintuplet 72 mm f/5.6 scope

The Askar FRA400C is a new-generation apochromatic refractor, designed to deliver outstanding image quality for astrophotography, visual observation and daytime photography.
With its 72mm quintuplet lens, incorporating two ED glass lenses, it guarantees optimum chromatic correction and outstanding sharpness across the entire field.

Main features :

• Opening : 72 mm
• Focal length : 400 mm
• Focal report : f/5.6 (reducible to f/3.9 with optional 0.7x reducer)
• Optical design : Petzval quintuplet with two ED glass elements
• Image circle : 44 mm, full-format compatible
• Focus: Smooth, precise helical motion, with locking mechanism
• Weight (OTA) : 2.56 kg (2.88 kg with clamps and dovetail)
• Accessories included: Clamps with multifunction handle, Vixen dovetail, 1.25″ and 2″ adapters, M48/M54/M72 adapters, integrated 2″ filter thread

Thanks to its Petzval design, the FRA400C offers a perfectly flat field without the need for an additional field corrector. This feature, combined with its full-frame compatibility, makes it ideal for capturing extended celestial objects such as nebulae and star clusters.

The versatile FRA400C lends itself equally well to daytime photography - with an aperture adjustable up to f/22 - and to visual observation, thanks to the adapters supplied. Its compact, lightweight design makes it easy to transport and install, whether on an equatorial mount or a photographic tripod.

The Askar FRA400C is the ideal tool for amateur astronomers and demanding photographers who want to explore the sky with precision and creativity.