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

Askar 65PHQ 65/416 f/6.4 Flatfield Apochromatic Astrograph Telescope

The Askar 65PHQ is a meticulously crafted astrograph, ideal for both budding astrophotographers and seasoned professionals. This telescope blends exceptional optical performance with portability, making it perfect for those venturing into professional astrophotography or seeking a reliable optical tube for more advanced use. Its compact and lightweight design is especially suited for mobile observation and photography, offering an excellent balance between performance and convenience.

Optical Excellence

At the heart of the Askar 65PHQ is a sophisticated five-element apochromatic air-gap optic. This design, inspired by high-end flagship apochromats, incorporates two low-dispersion ED glass elements. These elements significantly minimize chromatic aberration, providing superb color fidelity and minimal field curvature. This ensures that images remain distortion-free across the entire frame, even without an additional field flattener.

Versatile Usage

Beyond its prowess in astrophotography, the Askar 65PHQ can also be adapted for visual observations. By attaching a diagonal or eyepieces with 1.25" and 2" diameters, this telescope offers flexibility for various astronomical pursuits.

Mechanical Precision

Complementing its optical capabilities, the Askar 65PHQ boasts outstanding mechanical quality. Its robust extension system can accommodate even the heaviest of astronomical cameras, while the CNC-engineered mounting rings and Vixen foot provide steadfast stability and precision.

Key Features of the Askar 65PHQ Telescope:

• High-class astrograph with two low-dispersion lenses to eliminate chromatic aberrations.
• Advanced optical design with perfect field curvature correction, no additional flattener needed.
• Three-part adapter for connecting various cameras or camcorders.
• Full frame coverage with a wide illumination circle diameter.
• 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 is backed by a 24-month warranty, ensuring peace of mind for your investment.