APO Quad Eyepiece Kit FF80 F/7.5 with Integrated Corrector - ZWO

Discover the ZWO APO Quadruplet FF80 F/7.5, a high-end astrograph designed for deep sky astronomical imaging on a large scale. With its quadruplet optical system and integrated field corrector, achieve exceptionally sharp images across the entire field, even covering full-frame sensors.

Features:

• Quadruplet objective lens with ED glass (4 lenses in 2 groups, including 2 ED glass lenses)
• Aperture: 80 mm
• Focal length: 600 mm
• Relative aperture: f/7.5
• Corrected image circle: 44 mm (compatible with full-frame sensors)
• Oversized 3-inch focuser with 1:10 microfocuser
• Retractable dew shield for easy transportation
• Tube length: 570 mm (retracted dew shield and including all adapters)
• Weight: 3.9 kg (4.7 kg with accessories)
• Includes Vixen-style dovetail, handle/counterweight, and four photo adapters (M68 male, M54 male, M54 female, and M48 male with filter thread)

Advantages:

• Simplified imaging: No backfocus calculation required, just attach your accessories and focus.
• Superior optical quality: ED glass lenses reducing chromatic aberrations for sharp and high-contrast images.
• : Flat field at the focal plane without the need for an additional corrector.
• Extended compatibility: 44 mm image circle covering full-frame sensors for large-format images.
• Ideal for nomadic imaging: Lightweight and compact design making transportation and setup easy.

Compatibility:

• Perfectly compatible with ZWO AM5/AM3 mounts and the brand's imaging accessories (cameras, filter wheels, focus motors).
• Optimal control via ASIAIR Plus for a fully optimized setup.

Tips and tricks:

• Use the M48 thread on the adapter to easily add a filter to your configuration.
• Pare the FF80 with ZWO accessories for maximum performance in imaging.