Artesky APO 80ED F/7.0 refractor (SKU: ART80EDF7) is a compact apochromatic refractor designed for astrophotography and visual observing. It features an 80 mm aperture and a 560 mm focal length, and with a dedicated 0.8× reducer it can also operate at 450 mm and F/5.6. The optical design, based on Ohara FCD1-B glass and a lanthanum element, provides very good color correction together with high sharpness and contrast.

Key features

• 80 mm ED apochromatic refractor
• 560 mm focal length and F/7.0 focal ratio
• focal length can be reduced to 450 mm with a 0.8× reducer
• doublet optical design with an Ohara FCD1-B element and a lanthanum lens
• high chromatic aberration correction with sharp, high-contrast images
• internal baffles for improved contrast and reduced reflections
• 2.5" R&P focuser with dual-speed microfocuser
• focuser load capacity up to 4 kg
• easy focuser motorization capability
• retractable dew shield
• suitable for both astrophotography and visual observation

Box contents

• Artesky APO 80ED F/7.0 refractor
• 2" adapter
• 1.25" adapter
• CNC-machined tube rings
• Vixen-style dovetail bar

Technical specifications

• aperture: 80 mm
• focal length: 560 mm
• focal ratio: F/7.0
• focal length with 0.8× reducer: 450 mm
• focal ratio with 0.8× reducer: F/5.6
• optical design: ED doublet
• glass type: Ohara FCD1-B (Japan) + lanthanum element
• backfocus: 123 mm from the 2" connection
• backfocus: 161 mm from the M63 × 1 thread
• focuser: 2.5" R&P dual speed
• maximum focuser load capacity: 4 kg
• thread: M63 × 1
• accessory standard: 2" and 1.25"

Thanks to its compact construction, refined optical system, and the option to work at two focal lengths, this model is a practical choice for wide-field astrophotography and high-contrast visual observing.