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Lunette Quadruplet Apo Tecnosky AG70 F5
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  • Lunette Quadruplet Apo Tecnosky AG70 F5
  • Lunette Quadruplet Apo Tecnosky AG70 F5
  • Lunette Quadruplet Apo Tecnosky AG70 F5
  • Lunette Quadruplet Apo Tecnosky AG70 F5

Tecnosky AG70 F/5 V2 Apochromatic Quadruplet Refractor

1,109.00CHF
1,053.55CHF Save 5%
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Tecnosky AG70 F/5 V2 Apochromatic Quadruplet Refractor

70mm f/5 Petzval quadruplet refractor with Lanthanum and FPL-53 elements, 45mm flat field, 2.5" rotatable focuser. Designed for full-frame imaging without additional field flattener.

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Tecnosky AG70 F/5 V2 Apochromatic Quadruplet Refractor

Overview

The Tecnosky AG70 V2 is a 70mm f/5 apochromatic quadruplet refractor featuring a Petzval design with Lanthanum and FPL-53 glass elements. This configuration delivers a 45mm flat field, making it suitable for full-frame sensors without the need for an additional field flattener.

The aluminum tube includes internal baffles to suppress stray light. The 2.5" rack-and-pinion focuser, made of magnesium alloy, supports loads up to 3 kg and features a 1:10 micro-reduction and a rotatable M48x0.75 thread, allowing the use of 2" filters.

Technical specifications

  • Optical design: Petzval apochromatic quadruplet

  • Aperture: 70 mm

  • Focal length: 350 mm

  • F-ratio: f/5

  • Glass elements: Lanthanum and FPL-53

  • Flat field: 45 mm (full-frame compatible)

  • Optical coating: Fully Multi-Coated (FMC)

  • Focuser: 2.5" rack-and-pinion in magnesium alloy, 1:10 micro-reduction, rotatable M48x0.75 thread

  • Load capacity: up to 3 kg

  • Weight: 3.94 kg (including rings and dovetail)

  • Included accessories:

    • CNC mounting rings

    • Vixen-style dovetail bar

    • Carrying handle

Optical performance

  • Astrophotography: 45mm flat field suitable for full-frame sensors without additional field flattener.

  • Recommended use: Wide-field imaging, extended nebulae, dense star fields.

  • Compatibility: Full-frame DSLR cameras, CCD/CMOS cameras with sensors up to 45mm diagonal.

Mount compatibility

With a weight under 4 kg, the Tecnosky AG70 V2 is compatible with light to medium mounts:

  • iOptron: SkyGuider Pro, CEM25, CEM40, GEM45, HAE29, HEM27

Key features

  • Petzval quadruplet design with Lanthanum and FPL-53 glass

  • 45mm flat field, ideal for full-frame sensors

  • Robust 2.5" focuser with integrated field rotator

  • Compact and lightweight tube for easy transport

  • No need for additional field flattener

Réfracteur APO AG70 F/5 V2

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