Starizona Variable M42 (T2) Adapter 30-40mm
- Adjustable Length: 30mm to 40mm
- Thread Type: M42 (T2) T-Thread
- Provides Continuous Spacing Adjustment
- Simplifies Achieving Precise Back Focus
Check which filter and adapter sizes clear the sensor with the Starizona Variable M42 (T2) Adapter 30-40mm, and how much light the corners lose.
Check vignettingThe Starizona Variable M42 (T2) T-Threaded Adapter provides precise, adjustable spacing from 30mm to 40mm for any optical train using standard M42 T-threads. This single component replaces a collection of fixed-length spacers, allowing you to dial in the exact back focus required by your camera and corrector combination within its adjustment range.
Achieving the correct back focus is critical for sharp stars corner-to-corner, especially with field flatteners and coma correctors. The Starizona Variable T-Threaded Adapter simplifies this process by offering a continuous adjustment range from 30mm to 40mm. Instead of swapping out multiple fixed spacers, you can simply rotate the adapter to lengthen or shorten the optical path, letting you find the perfect spacing with sub-millimeter precision. This is essential for optimizing imaging systems where the exact distance between the corrector and sensor is non-negotiable.
This model of the Starizona Variable T-Threaded Adapter has a continuous adjustment range from 30mm to 40mm in length.
The adapter uses standard M42 (T2) T-threads on both male and female ends, ensuring compatibility with most astronomy cameras, filter wheels, and correctors.
Yes. In addition to this 30-40mm version, Starizona also offers adapters with 15-20mm and 20-30mm ranges, as well as a kit that includes all three variable adapters.
| Thread Type | M42 (T2) T-Thread |
| Adjustable Length | 30mm - 40mm |
Starizona Variable M42 (T2) T-Threaded Adapter 30-40mm
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