Helps bring your camera to just the right distance
The William Optics 4 extension adapter ensures that your camera will be positioned correctly when working with the Flat GT. You get the extra length needed to properly reach the image plane. This keeps your shot clear, flat and sharp across the entire frame. You don't have to puzzle or shift; just snap it in and you're instantly at the right distance.

Made for a fixed, stable connection
The adapter has an M92 thread on both sides. That means everything is tightly secured with no play. Your camera stays straight, your framing stays neat, and you don't lose focus due to tilt. So you can make longer exposures without the image shifting.
Sturdy design that lasts a long time
The optical length of 67 mm is just what the Flat GT needs. The design is simple but strong. You use it over and over again without the threads wearing out or loosening. This keeps your setup reliable even during long astrophotography sessions.

Specifications
Capacity
| Feature | Description |
|---|---|
| Suitable for | Flat GT |
| Telescope connection | M92 |
| Camera side connection | M92 weiblich |
| Optical length (mm) | 67 |
General
| Feature | Description |
|---|---|
| Type | Adapters |
| Design | Adapters |







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