Askar FRA400 f/5.6 72mm Quintuplet APO Astrograph

The ASKAR FRA400 apochromatic lens telescope features a five-element design that provides a smooth field and sharp stars without chromatic aberration from edge to edge. Equipped with a 72 mm aperture, two ED lenses and a Petzval optical configuration, this f / 5.6 telescope has a focal length of 400 mm. Clearly suitable for capturing stunning wide field images of deep sky objectss. It also acts visually as a very small travel scope.

The 3 "focus is a two-speed, 360-degree rotatable. The focus has an M68x1 thread that connects directly to the camera. Also includes an adapter M68-M48. Visual view adapter for 1.25" and 2 "angular prism.

Equipped with fine pipe collars with Vixen-type mounting rail and carrying handle. Fits are well chosen for star photography, available separately as a focal length reducer.

Information

• Aperture: 72 mm
• Focal length: 400mm
• Aperture ratio: f / 5.6
• Type: Quintuplet Dual ED Air-Spaced APO
• Total length: 317mm
• Tube weight: 2.56 kg
• Total weight (with accessories): 2.88 kg
• Back connector: M68x1 male thread, 2 "adapter / 1.25" adapter
• Backfocus: 140mm