Passer au contenu

Langue

Pays

David Astro Penta Prism Diagonal - 1.25"

UGC DAV-PENTA-1.25
Prix d'origine $0
Prix d'origine $149.00 USD - Prix d'origine $149.00 USD
Prix d'origine
Prix actuel $149.00
$149.00 USD - $149.00 USD
Prix actuel $149.00 USD

Description

The David Astro Penta Prism 90-Degree Diagonal is a non inverting non reversing diagonal. It’s particularly suited for use with the David Astro Premium Linear BinoViewer, where its unique optical design delivers an accurate image orientation, eliminating the need for image inversion or mental adjustments common with traditional star diagonals.

At the heart of this diagonal is a pentagonal-shaped BK-7 glass prism, multi-coated on its transmitting surfaces and dielectric-coated on the reflective surfaces, which maximizes light transmission to the eyepiece. Unlike standard star diagonals that produce a mirror-reversed image, the Pentaprism Diagonal preserves the natural left-to-right orientation, making it invaluable for star navigation and terrestrial applications.

This 1.25” diagonal features a non-marring compression ring collar and a tapered barrel for secure attachment to any telescope focuser, and it’s threaded for 1.25” filters. With a generous clear aperture of 29mm, the diagonal avoids vignetting even with long focal length and wide-angle eyepieces, preserving field brightness and edge-to-edge clarity.

Designed with an optical path length (backfocus requirement) of 120mm, our Pentaprism Diagonal ensures compatibility with most telescope setups. When paired with the David Astro Premium Linear BinoViewer, it provides a correctly oriented view, ideal for terrestrial observation where orientation accuracy is essential. However, it may not yield the same results with other binoviewers that lack an integrated image-erecting lens.

Enhance your observing experience with the David Astro Pentaprism Diagonal, the ideal choice for astronomers and terrestrial viewers seeking clarity and orientation without sacrificing image quality.

Disponibilité:
5 en stock

International Shipping

More information

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Tu pourrais aussi aimer

  • Prix d'origine $42.84 USD - Prix d'origine $42.84 USD
    Prix d'origine
    $42.84 USD
    $42.84 USD - $42.84 USD
    Prix actuel $42.84 USD

    David Astro 90° Diagonal - 1.25"

    DAV-DIAG-1.25
    5 en stock

    The 1.25" Mirror Diagonal is a must-have accessory for astronomers, providing a comfortable viewing angle and improved image quality during telesc...

    Afficher tous les détails
    Prix d'origine $42.84 USD - Prix d'origine $42.84 USD
    Prix d'origine
    $42.84 USD
    $42.84 USD - $42.84 USD
    Prix actuel $42.84 USD
  • Prix d'origine $109.00 USD - Prix d'origine $109.00 USD
    Prix d'origine
    $109.00 USD
    $109.00 USD - $109.00 USD
    Prix actuel $109.00 USD

    David Astro 99% Dielectric Twist-Lock Diagonal - 1.25"

    DAV-DIG-TL-1.25
    10 en stock

    The 1.25" 99% Dielectric Twist-Lock Diagonal is an essential upgrade for astronomers seeking the best in optical performance and convenience. This...

    Afficher tous les détails
    Prix d'origine $109.00 USD - Prix d'origine $109.00 USD
    Prix d'origine
    $109.00 USD
    $109.00 USD - $109.00 USD
    Prix actuel $109.00 USD
  • Prix d'origine $159.00 USD - Prix d'origine $159.00 USD
    Prix d'origine
    $159.00 USD
    $159.00 USD - $159.00 USD
    Prix actuel $159.00 USD

    David Astro 99% Dielectric Twist-Lock Diagonal - 2"

    DAV-DIG-TL-2
    9 en stock

    The 2" 99% Dielectric Twist-Lock Diagonal is an essential upgrade for astronomers seeking the best in optical performance and convenience. This pre...

    Afficher tous les détails
    Prix d'origine $159.00 USD - Prix d'origine $159.00 USD
    Prix d'origine
    $159.00 USD
    $159.00 USD - $159.00 USD
    Prix actuel $159.00 USD
  • Prix d'origine $96.00 USD - Prix d'origine $96.00 USD
    Prix d'origine
    $96.00 USD
    $96.00 USD - $96.00 USD
    Prix actuel $96.00 USD

    William Optics Prisme 90° - 1.25"

    WO-D-EP90-125II

    Prisme érigé à 90 degrés pour oculaires de télescope de 1,25" Fournit une orientation correcte de l’image pour la visualisation terrestre...

    Afficher tous les détails
    Prix d'origine $96.00 USD - Prix d'origine $96.00 USD
    Prix d'origine
    $96.00 USD
    $96.00 USD - $96.00 USD
    Prix actuel $96.00 USD
  • Prix d'origine $110.00 USD - Prix d'origine $110.00 USD
    Prix d'origine
    $110.00 USD
    $110.00 USD - $110.00 USD
    Prix actuel $110.00 USD

    William Optics Renvoi Coudé Diélectrique Dura Bright 99% - 1.25"

    WO-D-125D-C-DB
    1 en stock

    Diagonale de 1,25" de haute qualité pour télescopes réfracteurs et catadioptriques Revêtement diélectrique à réflectivité de 99 % pour un...

    Afficher tous les détails
    Prix d'origine $110.00 USD - Prix d'origine $110.00 USD
    Prix d'origine
    $110.00 USD
    $110.00 USD - $110.00 USD
    Prix actuel $110.00 USD