Askar FRA400 f/5.6 Quintuplet APO Astrograph
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Askar FRA400 f/5.6 Quintuplet APO AstrographAskar FRA400 f/5.6 Quintuplet APO AstrographAskar FRA400 f/5.6 Quintuplet APO Astrograph
Askar FRA400 f/5.6 Quintuplet APO AstrographAskar FRA400 f/5.6 Quintuplet APO AstrographAskar FRA400 f/5.6 Quintuplet APO Astrograph

Askar FRA400 f/5.6 Quintuplet APO Astrograph

Now: £962.00 (Save:  £106.00) Was:  £1,068.00
  (1 Review)
✓ 2 year warranty

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Out of stock due 30-40 working days

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About this product

Model:  askar_fra400_5.6
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

FEATURES

  • 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

Focuser Mechanics

Dimensions

Optics

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

Customer reviews

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Great telescope for astro-imaging
Friday, 8 January 2021  | 

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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