TS-Optics CF-APO 70 mm f/6 FPL55 Triplet

TS-Optics CF-APO 70 mm f/6 FPL55 Triplet

The triplet lens with 70 mm aperture and 420 mm focal length fulfills the criteria of a full APO. Even at magnifications of 220x, the image is free of annoying chromatic aberrations. Even bright stars are shown on astrophotos without disturbing blue fringes.

The APO element consists of FPL55. A further special glass supports chromatic correction. The air-spaced triplet objective is fully adjustable. Each optical glass-air surface is multi-coated. The objective is in a temperature compensated, adjustable cell.

The 2" focuser is optimized for photography and can handle a load of up to 6 kg. An M54x0.75 internal thread is available for screwed adaptations. The focuser also offers 360° rotation for selecting the correct image section. An optical test certificate is also included!

Technical Specifications

• Aperture: 70 mm
• Focal length: 420 mm
• Focal ratio: f/6
• Objective: Multicoated APO triplet lens - FPL55
• Tube: CNC metal tube
• Weight: 2.6 kg
• Dew shield: retractable - can be fixed with one screw
• Focuser: 2" CNC focuser
• Connections on the eyepiece side: 2", 1.25" and M54x075 female thread
• OTA lenth: 30 cm
• Tube diameter: 76 mm
• Dew cap diameter: 88.5 mm

Delivery

• TS 70/420 mm Triplet APO
• CNC tube rings
• Carrying handle
• Vixen style dovetail bar
• Transport case