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Pegasus Astro M42M to 1.25 Nosepiece Adapter + M54M to M42F Adapter for Smart Eye

Pegasus Astro M42M to 1.25 Nosepiece Adapter + M54M to M42F Adapter for Smart Eye

by Pegasus Astro
SKU PEG-ADAPT-SE125NP
$49.00 - $49.00
$49.00
$49.00 - $49.00
$49.00
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  • Connects SmartEye devices to standard 1.25-inch focusers
  • Includes one M42 Male to 1.25-inch nosepiece
  • Includes one M54 Male to M42 Female adapter
  • Provides a secure, threaded connection path
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • M42M to 1.25" Nosepiece + M54M to M42F Adapter for Smart Eye

    This two-part adapter set provides the specific M54 Male to M42 Female and M42 Male to 1.25-inch nosepiece connections required to mount a SmartEye device onto any standard 1.25-inch telescope focuser. The set creates a complete, secure threaded pathway from the SmartEye's native M54 port to a simple 1.25" barrel.

    SmartEye to 1.25" Focuser Connection

    The primary function of this adapter set is to bridge the gap between the larger M54 threaded interface of a SmartEye device and the universal 1.25-inch barrel format found on most telescope focusers, diagonals, and visual backs. It allows you to use your SmartEye imaging or alignment tool with virtually any telescope, regardless of its original accessory compatibility.

    Dual-Adapter M54M and M42M Solution

    This isn't a single adapter but a matched pair designed to work in sequence. The first adapter steps the SmartEye's M54 Male thread down to a standard M42 Female T-thread. The second adapter then converts that M42 Male thread into a universal 1.25-inch nosepiece, ready to slide into your focuser and lock in place.

    • M54M to M42F: This ring adapter handles the initial, larger thread conversion, adapting the device's output to the widely used T-thread standard.
    • M42M to 1.25-inch Nosepiece: This piece provides the final physical interface to the telescope, allowing for a secure, non-threaded connection just like a standard eyepiece.

  • What is the primary purpose of this Smart Eye adapter set?

    This adapter set is designed specifically to allow a SmartEye device, which has an M54 threaded connection, to be attached to a standard 1.25-inch telescope focuser or accessory port.

    Do I need both adapters to connect my Smart Eye to a telescope?

    Yes, for the intended purpose, both adapters are required. The M54M to M42F adapter first converts the SmartEye's native thread to the common M42 T-thread, and the M42M to 1.25" nosepiece then allows that assembly to be inserted into the focuser.

    Can I use the M42M to 1.25" Nosepiece adapter by itself?

    Yes. The M42 Male to 1.25-inch nosepiece is a standard T-to-1.25" adapter and can be used with any astronomy camera or accessory that has a female M42 T-thread if you want to connect it to a 1.25-inch focuser.

    Will this Smart Eye adapter work with my 8" Schmidt-Cassegrain telescope?

    Yes, as long as your 8" SCT has a 1.25-inch visual back or a focuser that accepts 1.25-inch accessories, this adapter set will work perfectly. It allows the SmartEye to be inserted just like a standard 1.25-inch eyepiece.

    My refractor telescope has a 2-inch focuser. Can I still use this Smart Eye adapter?

    Yes. To use this 1.25-inch adapter set with a 2-inch focuser, you will need a standard 2-inch to 1.25-inch reducing adapter, which typically comes standard with most telescopes equipped with 2-inch focusers.

    Are the threads on these adapters standard T-threads?

    The set uses two different thread sizes. The larger ring adapts an M54 male thread to a female M42 thread. The M42 thread is the standard "T-thread" (M42x0.75) common in astrophotography, making the nosepiece portion compatible with a wide range of other gear.

  • Adapter 1 M54 Male to M42 Female
    Adapter 2 M42 Male to 1.25-inch Nosepiece
    Barrel Size 1.25-inch

    • M42 Male to 1.25-inch Nosepiece Adapter

      × 1

    • M54 Male to M42 Female Adapter

      × 1

  • Pegasus Astro 2-Year Warranty