Airy Disk APO 106mm f/6.6 Triplet FCD-100

The 106mm APO is designed for astrophotography enthusiasts and visual observers who want high contrast in a portable, slightly-over-4-inch refractor. Its triplet lens uses Japanese Hoya FCD100 ED glass for sharp images with minimal color aberration.

Visual users will appreciate near-perfect color correction and edge sharpness, while imagers can pair it with matched 0.75x or 0.92x flatteners/reducers for full-frame photography. It ships in an aluminum case with room for accessories.

Specifications

• SKU: 106APO
• Glass used: HOYA FCD100, CDGM
• Aperture: 106mm
• Focal ratio: f/6.6
• Focal length: 700mm
• Coating: full wideband multi coating
• Resolving Power: 1.09"
• Limit magnitude: 11.9mag
• Tube material: Aluminum alloy
• Dovetail style: Vixen
• Focuser: 3" dual-speed 1:10 rack-and-pinion with 3 linear rails
• Available reducers/flatteners: 0.75x FF, 0.92x FF
• Reduced focal length: 525mm f/5, 644mm f/6
• Backfocus: adjustable
• Sensor coverage: Full Frame
• Eyepiece clamp: 2" with 1.25" Adapter
• Length extended: 645mm
• Length hood in: 550mm
• OTA weight: 5.19kg
• Mounting hardware: 0.72kg
• Box size: 67.5 x 34.5 x 25.5 cm

The Airy Disk APO 106mm f/6.6 Triplet FCD-100 is built for astronomers who want a premium apochromatic refractor for visual observing, deep-sky imaging, planetary viewing, and portable astrophotography. With carefully selected ED glass, precision mechanics, and wideband multi-coated optics, this Airy Disk telescope is positioned for sharp contrast, refined color correction, and dependable performance under the night sky.