What are the threads on the Starizona 7mm Extension?

The Starizona 7mm Extension features male M48 threads on one side and female M48 threads on the other, allowing it to be inserted anywhere in a standard 2-inch accessory train.

When would I need a 7mm M48 extension like this Starizona model?

You would use this 7mm extension when the total distance from your camera sensor to your flattener or reducer is just short of the required back focus. It provides a small, precise increment of spacing that is often needed to eliminate field curvature and achieve sharp stars corner-to-corner.

Can the Starizona M48 7mm extension be combined with other spacers?

Yes. Astrophotography imaging trains are modular. This 7mm extension is designed to be combined with other M48 spacers, filter wheels, or off-axis guiders to achieve the total back focus distance required by your specific optical system.

Starizona M48 Extension - 7mm

by Starizona

SKU STZ-EXTM48-7

$4.95 USD - $4.95 USD

$4.95 USD

$4.95 USD - $4.95 USD

$4.95 USD

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Adds 7mm of spacing to an imaging train
Standard M48 male and female threads
Precision component for achieving correct back focus

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Starizona M48 Extension - 7mm

The Starizona M48 Extension is a precision-machined spacer designed to add exactly 7mm of length to an M48-threaded optical train. This component is essential for astrophotographers who need to fine-tune the distance between a corrector and a camera sensor to achieve perfect back focus.

Precise 7mm Spacing for M48 Imaging Trains

Achieving the exact back focus distance specified by a field flattener or reducer is critical for sharp stars across the entire image frame. The Starizona M48 Extension provides a fixed, non-flexing 7mm of additional spacing to help you dial in that perfect distance. With standard male and female M48 threads, it integrates seamlessly into any 2-inch filter-threaded imaging setup, allowing you to stack it with other extensions to reach a specific total length.
What are the threads on the Starizona 7mm Extension?

The Starizona 7mm Extension features male M48 threads on one side and female M48 threads on the other, allowing it to be inserted anywhere in a standard 2-inch accessory train.

When would I need a 7mm M48 extension like this Starizona model?

You would use this 7mm extension when the total distance from your camera sensor to your flattener or reducer is just short of the required back focus. It provides a small, precise increment of spacing that is often needed to eliminate field curvature and achieve sharp stars corner-to-corner.

Can the Starizona M48 7mm extension be combined with other spacers?

Yes. Astrophotography imaging trains are modular. This 7mm extension is designed to be combined with other M48 spacers, filter wheels, or off-axis guiders to achieve the total back focus distance required by your specific optical system.
Threads M48 (male/female)

Extension Length 7mm
- Starizona M48 Extension - 7mm
  
  × 1
Starizona Warranty

Starizona M48 Extension - 7mm

Will your imaging train vignette?