Askar FRA300 60mm F5 Petzval Astrograph
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 Askar FRA300 60mm F5 Petzval AstrographAskar FRA300 60mm F5 Petzval Astrograph 

Askar FRA300 60mm F5 Petzval Astrograph

£949.00✓ 2 year warranty

:  

Out of stock due 15-20 working days

About this product

Model:  askar_fra300
Part Number:  FRA300

This new Askar FRA300 60mm F5 telescope is the smallest Astrograph in the Askar FRA series and has the fastest native focal ratio (focal length is 300mm).

Features a fully multi coated quintuplet fully air-spaced objective lens, including one ED glass element. 

Delivers sharp star images with an RMS Radius of 2um in the centre of the field and delivers full-frame coverage supporting a 44mm imaging circle. 

The F5 focal ratio ensures reduced exposure times and a wide field of view. In addition it allows for a very compact and portable OTA making the FRA300 an ideal choice where portability is important. 

The rear lens group design features two element refractive lenses with a wide separation which improves both the star quality and the aberration correction performance , and has very good control of full-frame peripheral light reduction. 

Thanks to the Petzval flat field design the user only needs to ensure that the camera is within the focus range of the telescope and no fine tuning of back focus spacing is necessary. 

Mechanically the FRA300 Pro is assembled with high-quality CNC-machined components , finished with a smooth spray coating and light oxidation process which is both beautiful and practical.The tube ring design is equally lightweight and stylish. 

The FRA300 includes a 2.5"rack-and-pinion focuser, which is solid and beautiful. The focuser includes both coarse adjustment and fine adjustment knobs to ensure highly accurate focussing and is equipped with a universal M48X0.75 thread adapter. 

There are also two separate M54X0.75 and M48X0.75 adapters in the standard kit for easy access to a variety of imaging equipment and accessories. 

The focuser is also equipped with a 360° rotator, which is convenient for users to rotate at any angle when shooting. 

In addition the FRA300 Pro also comes complete with a multi-function handle and a 300mm vixen-style dovetail plate, which can be directly connected to various mounts and accessories, the multi-functional handle can also be connected to the universal vixen-style finder base.The included 300mm dovetail plate allows the astrograph to maintain balance on the mount. 

Specifications

  • Aperture size:60mm
  • Focal length:300mm
  • Focal ratio:F/5
  • Objective lens:quintuplet fully air-spaced Petzval APO (including one ED glass)
  • Image circle:44mm full-frame
  • Total Length: 303mm
  • Gross weight: 3.12kg
  • Net Weight: 2.26 kg
  • Rear End Thread: M48x0.75 Male
  • Maximum accessory connection (with the focuser fully retreated) in imaging mode:
    • 71mm (from the base of M42×0.75 male thread)
    • 67mm (from the base of M48×0.75 male thread)
    • 71mm (from the base of M54×0.75 male thread

What's in the box

  • Tube Holder
  • Carry Handle,
  • Askar 300mm Vixen dovetail plate,
  • M42*0.75 and M54*.75 adapters
  • Manual

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