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Starizona M42 to M48 Step Ring

SKU STZ-STEP-M42-M48
Original price $15.00 USD - Original price $15.00 USD
Original price
$15.00 USD
$15.00 USD - $15.00 USD
Current price $15.00 USD
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  • Adapts M42 Female Threads to M48 Male Threads
  • Adds 0mm to the Optical Path
  • Ultra-Thin Step-Up Ring Design
  • Connects M42 Male Accessories to M48 Female Ports
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  • Description
  • FAQ
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  • Starizona M42 to M48 Step Ring

    The Starizona M42 to M48 Step Ring adapts internal M42 female threads to external M48 male threads, adding precisely 0mm of optical path length to your imaging train.

    A 0mm Path from M42 to M48

    This adapter provides a direct conversion from the smaller M42 thread standard to the larger M48 format common on 2-inch accessories like filter wheels and camera adapters. Its key feature is a zero-profile design that adds 0mm of length to your optical train.

    Maintaining exact back focus is critical when using focal reducers and field flatteners. By consuming no optical path length, the Starizona M42 to M48 Step Ring allows you to connect M42-threaded components to M48-threaded hardware without altering the carefully calculated spacing your corrector requires. This makes it an essential component for building a rigid, threaded imaging train with mixed components.

  • What is the primary function of the Starizona M42 to M48 Step Ring?

    The Starizona M42 to M48 Step Ring is designed to connect two components with different thread sizes. An accessory with M42 male threads (such as a T-ring or camera adapter) threads into the ring, and the ring then threads into a device with M48 female threads (such as a 2-inch filter holder or field flattener).

    Does the Starizona M42 to M48 Step Ring increase the length of my imaging train?

    No. The adapter is specifically engineered to add 0mm of optical path length. This means it does not consume any of your available back focus, which is crucial for ensuring that field flatteners and focal reducers work at their designed distance.

    What are the thread types on the Starizona M42 to M48 Step Ring?

    The adapter features M42 female threads on the inside and M48 male threads on the outside, allowing you to "step up" from the smaller M42 format to the larger M48 format.

  • Inner Thread M42 female
    Outer Thread M48 male
    Added Optical Path 0mm
  • Starizona Warranty