Askar 65PHQ 65/416 f/6,4 Flatfield APO Astrograph

The Askar 65PHQ is a versatile astrograph designed to cater to both novice astrophotographers and experienced users. With its exceptional optical characteristics, this telescope serves as an excellent introductory instrument for those stepping into professional astrophotography. Additionally, it serves as a reliable basic optical tube for more demanding and experienced users. Compared to larger models in the PHQ series, the Askar 65PHQ is an ideal choice for those seeking a smaller and lighter setup for mobile observation and photography.

At the core of this telescope lies a five-element apochromatic air-gap optic. The designers at Askar have employed a solution found in high-end flagship apochromats, utilizing two elements made of glass with reduced dispersion (ED) to ensure optimal chromatic aberration correction. Alongside its excellent color reproduction, the Askar 65PHQ boasts a minimal field curvature, resulting in distortion-free images at the edge of the frame even without the use of an additional flattener.

However, the capabilities of this telescope extend beyond astrophotography alone. It can also be used for visual observations by connecting a diagonal attachment or eyepieces with 1.25" and 2" diameters.

In addition to its impeccable optical performance, the Askar 65PHQ excels in mechanical quality and precision. Its robust extension enables the attachment of even the heaviest astronomical cameras, while the CNC technology utilized in the mounting rings and Vixen foot ensures complete stability of the tube.

Key Features of the Askar 65PHQ Telescope:

• High-class astrograph with two low-dispersion lenses for eliminating chromatic aberrations.
• Advanced optical design provides perfect field curvature correction without the need for an additional flattener.
• Three-part adapter allows for connecting various cameras or camcorders.
• Full frame coverage ensured by the diameter of the full illumination circle.
• Suitable for both astrophotography and visual observations.

Technical Specifications:

• Optical construction: Apochromatic refractor.
• Lens system: ED quintuplet with air gap.
• Number of low dispersion lenses: Two.
• Front lens diameter (aperture): 65 mm.
• Focal length: 416 mm.
• Focal ratio: f/6.4.
• Diameter of the full illumination disc: 44 mm.
• Compatibility with full-frame sensors: Yes.
• Adapter for connecting a camera/camcorder: Three-piece.
• Back focus for adapter with M48x0.75 thread (from the base of the thread): 76 mm.
• Back focus for adapter with M54x0.75 thread (from the base of the thread): 105 mm.
• Back focus for adapter with M68x1 thread (from the base of the thread): 130 mm.
• Compatible eyepieces/diagonals: 1.25", 2".
• Filter compatibility: Yes, with M48x0.75 thread in the M52x0.75 - M48x0.75 adapter.
• Focuser diameter: 2.5".
• Focuser type: Rack & pinion, dual speed.
• Mounting bracket: Vixen foot.
• Tube length with dew shield and adapters unfolded: 420 mm.
• Tube length with folded dew shield and adapters: 360 mm.
• Tube weight without accessories: 2 kg.
• Tube weight with accessories: 2.8 kg.

Included Accessories:

• Askar 65PHQ optical tube.
• Three-piece M68 - M48 photo adapter.
• Mounting clamps.
• Vixen rail (300 mm).

Warranty:

The Askar 65PHQ telescope comes with a 24-month warranty.