Introductory Promotional Price - Subject to Availability
About this product
Part Number: FRA400/5.6
New ASKAR FRA400 72mm f/5.6 Flatfield Astrograph
The ASKAR FRA400 (Flatfield Refractive Astrograph) incorporates a five-element design to deliver flat fields and sharp, false colour-free images from edge-to-edge. With a 72mm objective, two ED elements, and Petzval optical layout, this f/5.6 scope has a focal length of 400mm and it’s ideal for capturing stunning wide-field images of the deep sky over a 44mm full-frame image circle. It also performs well visually as a rich field telescope (star diagonal not included).
The ASKAR FRA400 includes a large 3” rack-and-pinion dual-speed focuser that’s fully rotatable through 360 degrees. The focuser tube terminates with an M68x1 thread for direct camera attachment, and it comes with an M68-M48 adapter suitable for connecting most DSLR and dedicated Astro Imaging cameras. It also includes a 2” adapter ring and 1.25”-2” adapter for use with diagonals, eyepieces, or smaller cameras.
The attractive optical tube of the FRA400 is complemented with a highly functional set of aluminium rings, Vixen-style dovetail, and a carrying handle. The rings include separate mounting holes for additional accessories. The entire tube is just 317mm long and weighs 2.6kg. The ASKAR FRA400 also features a retractable dew shield.
While the fast f/5.6 focal ratio is ideal for deep-sky imaging, ASKAR also makes an optional FRA72RD focal reducer (not included) for the FRA400 scope to bring the focal ratio to f/3.9 while still supporting full-frame imaging.
A dedicated Focal Reducer allows the scope to operate at the very fast focal ration of F3.9 and is also full format compatible.
The FRA400 is outstanding value and is a great choice for wide field imaging with the flexibility to work at both F5.6 and F3.9
- Aperture: 72mm / 2.83in
- Focal Length: 400mm
- Focus Ratio: f/5.6
- Objective Type: Quintuplet Dual ED Air-Spaced APO
- Overall length: 317mm
- Weight: 2.56kg
- Options Weight: 2.88kg
- Back-end Adapter: M68x1 Male Thread, 2" Adapter / 1.25" Adapter
- Back focus: 140mm
Telescope Field of View Simulator
What's in the box
- Telescope OTA
- Tube rings
- Carry Handle
- Vixen-style Dovetail Bar
- M68 to 2" Eyepiece Holder
- 2" to 1.25" adapter
- M68 to M48 adapter
- Instruction manual
- Quality Control Inspection List
|Average Rating (1 Review): |Great telescope for astro-imaging
Friday, 8 January 2021 | Lee
The Askar FRA400 offers a lot in a compact package, and is good value for money. I've written a more thorough review on SGL: https://stargazerslounge.com/topic/369728-askar-fra400-f56-quintuplet-apo-astrograph-review/
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