Askar FRA300 Pro 60mm f/5 Quintuplet APO
Description
- 60mm f/5 Quintuplet APO
- 44mm flat field image circle
- 300mm focal length
- 2.5" rack and pinion focuser with rotator
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Elevate your astrophotography with the Askar FRA300 Pro, a groundbreaking addition to the acclaimed Askar FRA series. This cutting-edge astrograph, with its short focal ratio, has quickly become a favorite among amateur astronomers and astrophotography enthusiasts. The FRA300 Pro stands out as the smallest 60mm F/5 Petzval astrograph in the series, offering unmatched speed and precision with a 300mm focal length.
With an RMS radius reaching 2um at the center field, the FRA300 Pro delivers remarkably sharp and delicate star images, catering to the needs of serious astronomers.
The quintuplet, fully air-spaced objective lens, including ED glass with full multi-coating, effectively eliminates stray light and optimizes image clarity.
Designed for full-frame compatibility, supporting a 44mm imaging circle, the FRA300 Pro is a rare gem for amateur astronomy. Its F/5 focal ratio significantly reduces exposure times compared to F/6 or F/7 models, capturing stunning images more efficiently.
The native Petzval design simplifies backfocus adjustments, ensuring optimal positioning within a specific range for ease of use and precision.
Crafted with high-quality CNC-machined components, finished with smooth spray coating and light oxidation, the FRA300 Pro combines aesthetics with practicality. Its lightweight and stylish tube ring design enhances the overall experience.
The 2.5" rack-and-pinion focuser, with dual-speed knobs and a 360° rotator, offers meticulous focus adjustments and flexible angle positioning, complemented by M54X0.75 and M48X0.75 adapters for wide compatibility.
The included multi-function handle and 300mm vixen-style dovetail plate facilitate easy connection to various mounts and accessories, ensuring a balanced setup.
The Askar FRA300 Pro is more than just an astrograph; it's a testament to Askar's commitment to quality and innovation in astrophotography. With its superior performance, user-friendly features, and exquisite design, the FRA300 Pro is set to be your indispensable astrophotography assistant. Whether capturing deep-sky wonders or celestial events, the Askar FRA300 Pro astrograph is engineered to exceed expectations, making it the ideal choice for both seasoned astronomers and those new to the field.
Manufacturer | Askar |
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Aperture | 60mm |
Focal Length | 300mm |
Focal Ratio | F/5 |
Objective Type | Quintuplet fully air-spaced Petzval APO (including one ED glass) |
Image Circle | 44mm full-frame |
Maximum accessory connection (with the focuser fully retreated) | 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 M54×1male thread) |
Total Length | 303mm |
OTA Weight | 2.26kg |
Total Weight (Including tube ring & dovetail plate | 3.12kg |
Rear-end Thread | M48*0.75 male thread |
Click here to see Askar FRA300 Pro User's Manual