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Eyepiece APO Quintuplet 72mm f/5,6 FRA400 with Rotating Eyepiece - Askar

Eyepiece APO Quintuplet 72mm f/5,6 FRA400 with Rotating Eyepiece - Askar

SKU:askar-fra400

Tilgjengelig på 3-5 uker

Prix habituel €1.345,00 EUR
Prix habituel Prix promotionnel €1.345,00 EUR
En promotion Épuisé
Taxes incluses. Frais d'expédition calculés à l'étape de paiement.

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Discover the Askar FRA400 astronomical eyepiece, a quintuplet apochromatic refractor of 72mm, ideal for astrophotography. With its precise construction and high-quality components, this eyepiece offers clear images without chromatic aberration.

  • Features:

    • Aperture: 72 mm
    • Focal length: 400 mm
    • Focal ratio: f/5.6
    • Design: Quintuplet apochromat with 5 elements and two ED lenses
    • Image circle: 44 mm with full illumination and correction
    • Working distance: 140 mm
    • Eyepiece holder: Crayford and stable 3" with 360° rotation
    • Receptacles: 2" and 1.25" with M68x1 external thread
    • Included adapter: M68 to M48x0.75
    • Dovetail bar: GP/EQ5 style with connection for photo tripod and transport handle
  • Advantages:

    • Superior correction of chromatic aberration thanks to two ED glasses
    • Flat field up to 44 mm diagonal without additional flatteners needed
    • High-precision optics and mechanics for optimal astrophotography performance
    • Robust and rotatable eyepiece holder for precise framing
    • Possibility to increase speed to f/3.9 with an optional corrector/reducer
  • Compatibility:

    • Compatible with various accessories via the M68x1 thread and 2" and 1.25" receptacles
  • Tips and Tricks:

    • Use the AS72RED corrector/reducer to achieve a focal ratio of f/3.9 and reduce exposure time by half

The Askar FRA400 eyepiece is a perfect choice for demanding astrophotographers looking for high-quality optics at an affordable price.

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