Manufacturer: Askar Sharpstar
Product number: fra400

EUR 1.349,00


incl. 19 % VAT (DE)  
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Product expected to be available from 30.04.2024

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rating: 5.0 of 5
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  • In the box..
  • Reviews..
ASKAR FRA 400 72 mm f/5.6 Quintuplet Astrograph
ASKAR is the new line of selected telescopes for astrophotography. With these telescopes a high attention is paid to the optical, but also mechanical quality. FRA stands for refractor telescopes with integrated corrector element for a flat and corrected image field. The FRA series is mainly used for astrophotography.

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin

The ASKAR FRA400 is a 5-element apo according to Petzval with 400 mm focal length, f/5.6 and 72 mm aperture. In the lens there are 2 ED glasses for a good correction of chromatic aberration. The apo is corrected for cameras up to full-frame.

The dew shield also offers good protection against stray light and can be extended. The large focuser holds even heavy cameras and allows clean focusing due to the speed reduction. 2", 1.25" and a M68x1 thread are available for connections. Also included is an adapter to M48x0.75 which is ideal for all cameras with 55 mm working distance. Important: To access the M48 female thread for the 2" filters, unscrew the adapter, then it is very easy.

A photo specialist, but also suitable for observation:
The ASKAR FRA400 is designed for astrophotography. However, due to the comfortable working distance, 2" star diagonals can also be connected. This turns the astrograph into a very nice spotting scope and telescope for astronomical observation and also landscape observation. All common 2" and 1.25" accessories can be connected.

Increase of the speed to f/3.9
The focal ratio of f/5.6 is already relatively fast. But often one wishes for even faster optics. With the optional FRA400Red you can increase the speed from f/5.6 to f/3.9, thus halving the exposure time. The focal length is shortened to 281 mm.
Aperture:72 mm
Focal length:400 mm
Focal ratio:f/5.6
Telescope type:5-element quintuplet apo with 2-element ED lens
Transport length:317 mm
Weight:2.56 kg
Connection camera side:M68x1 external thread, 2" and 1.25" receptacle
Photo adapter:M68x1 female thread - M48x0.75 male thread - length 63.5 mm
Filter thread:2" filter thread (M48x0,75) included in the photo adapter (access after unscrewing the adapter)
Thread bores in tube rings:M6
Apo in gift box
CNC tube rings
GP/EQ5 style dovetail bar
Handle
Photo adapter to M48x0.75
Finder shoe (mounted)
Inspection list

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin


Photograph by our customer Juzelle Jardin
Our customer Juzelle Jardin from Germany captured a nice image of the Andromeda Galaxy:

Object: Andromeda Galaxy (M 31)
Photographer: Juzelle Jardin
Light pollution: Bortle 4
Telescope: Askar FRA 400 (fra4)
Camera: ZWO ASI294MM Pro (ASI294MMpro)
Exposure: 27x 300 s for L, 30x 300 s for R, 30x 300 s for G, 17x 300 s for B

Clicking on it gives a larger version of the image.

Thank you to our customer for this nice astro image!


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Reviews

Written by Stefan Bismeijer
on 2022-12-20

"Very nice astrograph, sharp untill the bvery corner with aps-c"

Written by Ralph Weber
on 2020-10-28

"Höchste Qualität bei der Optik und Verarbeitung, das Aussehen gehört ja bekanntlich mit dazu. Höchste Schärfe, kompaktes Gerät auch für DeepSky geeignet und leicht transportabel"