Askar 151PHQ
Explore the Universe with the Askar 151PHQ Astrograph High-Performance Optics: Featuring a substantial 151mm aperture and a 1057mm focal length at f/7, the 151PHQ is the largest refractor in the Askar...
Explore the Universe with the Askar 151PHQ Astrograph
- High-Performance Optics: Featuring a substantial 151mm aperture and a 1057mm focal length at f/7, the 151PHQ is the largest refractor in the Askar lineup, designed to elevate your astrophotography with unmatched clarity and detail.
- Advanced Lens Design: The 151PHQ boasts a quadruplet lens system including two ED glass elements, expertly reducing chromatic and other aberrations for pristine image quality.
- Integrated Flatfield Design: Eliminate the need for additional flatteners thanks to the built-in flatfield design, simplifying setup and enhancing the astrograph's ability to capture wide, distortion-free views of the night sky.
- Medium Frame Imaging: Supports a 60mm image circle with a central RMS radius under 2 microns, ideal for capturing fine details in celestial objects with minimal peripheral star distortion.
- Robust Mechanical Construction: Comes equipped with a durable, CNC machined tube and a high-quality paint finish, enhancing both the astrograph's durability and aesthetic appeal.
- Precision Focusing and Rotation: Includes a 3.4" rack and pinion (R&P) focuser with a 360° rotator, providing smooth and accurate focusing adjustments and rotation for optimal framing and focusing of celestial objects.
- Versatile Imaging Capabilities: Use the included 3" 0.7x flat field reducer to achieve a faster f/4.9 focal ratio and a 740mm focal length, reducing exposure times and broadening your astrophotography options.
- Convenient Mounting and Accessory Attachment: Features a standard 300mm Losmandy dovetail plate and sturdy double tube rings for secure mounting. The multifunctional handle includes a central slot for an M6 screw, enhancing the versatility for accessory attachments.
- Designed for Ease: The retractable telescopic lens hood and the enhanced tube ring design facilitate quick and easy setup, making it ideal for both beginners and seasoned astrophotographers.
- Elegant and Functional: The 151PHQ not only performs well but also looks great with attractive decorative elements and a professional finish, making it a standout addition to any astronomer's gear.
The Askar 151PHQ sets new standards for refractive astrographs, offering a perfect combination of high-end performance and user-friendly features for exploring the depths of the universe.
Specifications
151PHQ |
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Aperture size |
151mm |
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Focal length |
1057mm |
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Focal ratio |
f/7 |
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Objective lens |
Quadruplet air-spaced APO (including two ED glass) |
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Image circle |
60mm |
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Maximum accessory connection (with the focuser fully retreated) |
Imaging mode： 78mm（from the base of M48×0.75 male thread） |
Observing mode ： 119mm （from the end of1.25" eyepiece holder） |
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Total length |
Observing mode：930.3mm（with the dew shield contracted）1117.8mm（with the dew shield fully stretched） |
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OTA Weight |
11.6kg |
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Total Weight (Including tube ring&dovetail plate） |
13.7kg |
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Rear-end thread type |
M86×1-M68×1 |
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Four-piece photographic end adapter |
M48×0.75 |
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Standard package items |
An 151PHQ OTA，a pair of tube rings, a handle, an Askar losmandy 300mm dovetail plate, a set of 4-piece photographic adapters, an aluminum box，a manual |
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Software and Docs