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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
PrimaLuceLab 3" Visual Back for ESATTO 3" and ARCO 3"

PrimaLuceLab 3" Visual Back for ESATTO 3" and ARCO 3"

par PrimaLuceLab
UGC PLL-PL8410010
$85.00 - $85.00
$85.00
$85.00 - $85.00
$85.00
Égalisation de prix!
  • Adapts M81 threads to accept 3-inch accessories
  • Designed for the PrimaLuceLab ESATTO 3" Focuser
  • Compatible with the PrimaLuceLab ARCO 3" Rotator
  • Internal brass compression ring prevents marring
  • Three locking screws provide a secure, centered grip
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Info disponibilité
Admissible à la livraison GRATUITE aux USA pour les commandes de plus de 350$.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • 3" Visual Back for ESATTO 3" and ARCO 3"

    Securely adapt your PrimaLuceLab ESATTO 3" focuser or ARCO 3" rotator for use with 3-inch accessories using this dedicated visual back. It provides a solid, non-marring connection via its M81 thread, ensuring your heavy cameras, diagonals, and eyepieces are held perfectly coaxial with your optical train.

    Secure M81 to 3-inch Connection for ESATTO and ARCO

    This adapter threads directly onto the M81 drawtube of your ESATTO 3" or ARCO 3", converting it to a standard 3-inch opening. The design prioritizes the safety of your equipment, incorporating a soft brass compression ring that grips accessories firmly without leaving scratches or gouges on their barrels.

    For heavy imaging trains or large visual accessories, three locking screws are positioned around the barrel. This three-point system allows you to apply even pressure, guaranteeing a perfectly centered and rigid connection that prevents any tilt or flexure during an imaging session or when slewing the telescope.

  • What is the primary function of the 3" visual back for ESATTO 3" and ARCO 3"?

    This visual back is designed to connect accessories with a standard 3-inch nosepiece, such as diagonals, eyepieces, or certain cameras, to the M81 female thread found on the drawtube of the PrimaLuceLab ESATTO 3" robotic focuser and ARCO 3" robotic rotator.

    How does this 3" visual back protect my accessories from scratches?

    It features an internal brass compression ring. Unlike simple set screws that dig directly into an accessory's barrel, this soft metal ring tightens evenly around the nosepiece, holding it securely without causing scratches, gouges, or other cosmetic damage.

    Can this visual back securely hold a heavy imaging camera on an ESATTO 3" focuser?

    Yes. The adapter is equipped with three locking screws arranged around the barrel. This allows you to create a robust, centered, and tilt-free connection that is essential for supporting heavy cameras, filter wheels, and other imaging accessories without flexure.

    Which PrimaLuceLab products is this 3" visual back compatible with?

    This adapter is specifically designed for PrimaLuceLab products that use an M81-threaded drawtube. This includes:

    • ESATTO 3" Robotic Microfocuser
    • ARCO 3" Robotic Rotator

    I want to use a 3-inch diagonal for visual on my SCT with an ESATTO 3" focuser. Is this the right adapter?

    Yes, this is the correct adapter. It will thread onto your ESATTO 3" focuser and provide the standard 3-inch receptacle needed to insert and secure your 3-inch diagonal, allowing you to build a robust visual train for your telescope.

    If I'm building an imaging train with an ESATTO 3" and ARCO 3" on my refractor, what role does this visual back play?

    In an imaging train, this visual back serves as the final connection point if your camera or off-axis guider has a 3-inch nosepiece. It ensures a solid, coaxial link between your rotator/focuser stack and your imaging sensor, which is critical for maintaining sharp, round stars across the field.

  • PrimaLuceLab 1-Year Warranty