Sky-Watcher HAC125 OTA Honders Advanced Catadioptric 125/250 Sky-Watcher telescopes opinie

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Sky-Watcher HAC 125: Innovative Astrograph for Mobile Astrophotography

The Sky-Watcher HAC 125 is a modern astrograph that uses the advanced Honders Advanced Catadioptric optical system. With a diameter of 125 mm and a focal length of 250 mm, combined with an ultra-bright f/2 aperture ratio, it is an excellent tool for mobile astrophotographers. The Honders optical system, introduced in this model, is characterized by an aspherical primary mirror with high reflectivity and a corrector with multi-coated surfaces that effectively eliminate the main optical aberrations. This allows for obtaining sharp, bright and precise images of wide sky fields.

Key Features:

• Optical system: Honders Advanced Catadioptric
• Diameter: 125 mm
• Focal length: 250mm
• Aperture ratio: f/2
• Field of View: Sharper image diameter than 16 mm, corresponding to 3.6° on the sky
• Focuser: Helical, allowing precise focusing
• Camera Compatibility: Compatible with 1.25 inch uncooled cameras

One of the greatest advantages of this telescope is its ability to collect a huge amount of light in a very short time. With an aperture ratio of f/2, exposures lasting just 60 seconds can capture as much light as traditional telescopes with an aperture of f/6.3 in 10-minute exposures. This allows for the creation of bright photographs with a high signal-to-noise ratio in a short exposure time.

The Sky-Watcher HAC 125 is also extremely compact and portable, making it an ideal choice for astrophotographers on the go. Its ability to be precisely aimed and its wide field of view allow for the capture of detailed images of galaxies, nebulae, and star fields, making it a versatile tool for both beginners and advanced users.

Technical parameters

• catalog number: SW-1338
• telescope optical system: Honders Advanced Catadioptric
• aperture: 125 mm
• focal length: 250 mm
• aperture: f/2.0
• tube weight: 3.79 kg
• tube length: 360 mm
• type of focuser: Helical
• Focuser diameter: 1.25"
• micro-movements of the focuser: no
• central obstruction: 42.5%
• illumination circle: 16
• mounting rail: Vixen
• warranty period: 60 months