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Starizona M48 to M54 Step Ring
Starizona M48 to M54 Step Ring
Starizona M48 to M54 Step Ring
Starizona M48 to M54 Step Ring
Starizona M48 to M54 Step Ring
Starizona M48 to M54 Step Ring

Starizona M48 to M54 Step Ring

by Starizona
SKU STZ-STEP-M48-M54
CA$21.00 - CA$21.00
CA$21.00
CA$21.00 - CA$21.00
CA$21.00
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  • Connects M48 male accessories to M54 female ports
  • Inner Thread: M48 Female
  • Outer Thread: M54 Male
  • Adds 0mm of optical path length
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Starizona M48 to M54 Step Ring

    The Starizona M48 to M54 Step Ring is a precision adapter designed to connect components with M48 threads to ports requiring M54 threads. This ring adds exactly 0mm of optical path length, making it an essential tool for maintaining critical back focus in a complex imaging train.

    A Zero-Profile M48 to M54 Solution

    In any astrophotography setup, back focus is a critical and often unforgiving tolerance. This Starizona adapter solves the common problem of mismatched threads between M48 accessories and M54 ports without consuming any of that distance. The ring is engineered so that the female M48 threads are fully contained within the male M54 fitting, resulting in an added optical path of precisely 0mm.

    This zero-profile design allows you to connect a standard 2-inch filter wheel or other M48-threaded component to a larger M54-threaded flattener or reducer, confident that you have not altered the carefully calculated spacing required for a flat field. It's a simple, robust, and optically invisible solution for integrating different components in your imaging train.

  • What are the threads on the Starizona M48 to M54 Step Ring?

    The Starizona M48 to M54 Step Ring features female M48 threads on the inside and male M54 threads on the outside. This allows you to attach a male M48 accessory to a female M54 port.

    How much back focus does the Starizona M48 to M54 Step Ring use?

    The adapter uses 0mm of back focus. Its design ensures it adds no length to the optical path, which is critical for preserving the carefully calculated spacing required by flatteners and reducers.

    What is the purpose of the Starizona M48 to M54 Step Ring?

    This adapter allows you to "step up" a connection in your imaging train. It solves the problem of connecting a smaller M48-threaded accessory (like a 2-inch filter holder) to a larger M54-threaded port on a focuser or field corrector.

  • Inner Thread M48 Female
    Outer Thread M54 Male
    Added Optical Path 0mm

    • Starizona M48 to M54 Step Ring

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  • Starizona Warranty