Starizona Variable M48 Adapter 20-30mm
- M48 Filter Threads (Male and Female)
- Adjustable from 20mm to 30mm
- Locking Ring for Secure Spacing
Check which filter and adapter sizes clear the sensor with the Starizona Variable M48 Adapter 20-30mm, and how much light the corners lose.
Check vignettingThis Starizona Variable Adapter provides precise M48-threaded spacing for your imaging train, with an adjustable length from 20mm to 30mm. It is an essential tool for achieving the exact back focus required by field flatteners and focal reducers, eliminating the need to stack multiple fixed-length extension tubes.
Achieving sharp, coma-free stars across your entire image sensor depends on maintaining a precise distance between your corrector optics and the camera sensor. This Starizona adapter simplifies that process by offering a continuous adjustment range from 20mm to 30mm. You can dial in the exact spacing your optical system needs, then secure it in place to prevent any shift during an imaging session.
The Starizona Variable M48 Adapter is used to achieve a precise back focus distance in an astronomical imaging setup. It allows you to fine-tune the spacing between your camera and a focal reducer or field flattener to ensure optimal optical correction across the field of view.
This specific model is adjustable from 20mm to 30mm. It features M48 threads on both ends, making it compatible with most 2-inch filter-threaded accessories and camera connections.
Many correctors require a standard 55mm back focus. If your camera has a native back focus of 17.5mm, and you have a 10mm M48 extension, you would have 27.5mm of spacing. You would need another 27.5mm to reach 55mm. This 20-30mm adapter allows you to set the spacing to exactly 27.5mm, perfectly completing your imaging train.
| Thread | M48 |
| Adjustable Length | 20-30mm |