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Starizona M48 Extension - 3mm
Starizona M48 Extension - 3mm
Starizona M48 Extension - 3mm
Starizona M48 Extension - 3mm

Starizona M48 Extension - 3mm

by Starizona
SKU STZ-EXTM48-3
$4.95 USD - $4.95 USD
$4.95 USD
$4.95 USD - $4.95 USD
$4.95 USD
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  • Adds 3mm of spacing to an imaging train
  • Standard M48 male and female threads
  • Precision component for achieving correct back focus
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Starizona M48 Extension - 3mm

    The Starizona M48 Extension adds a fixed 3mm of length to any standard M48 threaded imaging train. This specific 3mm length is ideal for making small, precise adjustments to achieve the critical back focus distance required by many optical correctors and reducers.

    Fine-Tuning Back Focus with 3mm of M48 Spacing

    Most focal reducers and field flatteners specify a precise back focus distance for optimal performance. Achieving this exact spacing with standard adapters can be difficult, often leaving you a few millimeters short. The Starizona 3mm M48 Extension provides the small, incremental adjustment needed to dial in that distance perfectly. By inserting this male/female spacer into your M48 threaded setup, you can eliminate spacing errors that cause elongated stars at the edge of the field.

  • When would I use the Starizona M48 Extension - 3mm?

    You would use this 3mm extension when your existing adapters and spacers leave you just short of the required back focus for your flattener or reducer. It is designed for fine-tuning your imaging train when larger spacers are too long.

    What threads does the Starizona 3mm Extension use?

    The extension uses standard M48 threads. It has male threads on one side and female threads on the other, allowing it to be inserted anywhere in an M48-threaded imaging train.

    Is the Starizona M48 Extension - 3mm part of a set?

    This is a single 3mm extension. Starizona produces M48 extensions in various lengths, allowing you to choose the specific spacing you need to complete your imaging train.

  • Threads M48 (male/female)
    Extension Length 3mm

    • Starizona M48 Extension - 3mm

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  • Starizona Warranty