PrimaLuceLab M48-50.8mm Photographic Adapter
- Adapts M48x0.75 Threads to 2" (50.8mm) Barrels
- 44mm Clear Aperture Prevents Vignetting
- Internal M48 Threads for 2" Filters
- Durable Black Anodized Metal Construction
The PrimaLuceLab M48-50.8mm Photographic Adapter is a fundamental component for connecting any camera or accessory with an M48x0.75 female thread to a standard 50.8mm (2-inch) focuser or visual back. Its design incorporates a full 44mm clear aperture to illuminate large sensors without vignetting and includes an internal M48 thread to accept any standard 2-inch filter.
This adapter provides a secure, direct connection for your entire M48-based imaging train. Whether you are using a cooled astronomy camera with a native M48 female thread or a DSLR/mirrorless camera equipped with an M48 T-ring, this adapter allows you to insert your camera into any 2-inch focuser just like an eyepiece. The solid metal construction and black anodized finish ensure a rigid, non-reflective light path.
A key feature of this adapter is its 44mm free aperture, which is critical for preventing the clipping of the light cone when using cameras with large, full-frame sensors. Unlike adapters with smaller internal diameters, this design ensures your sensor is fully illuminated. The front of the adapter is also threaded for standard 48mm (2-inch) filters, allowing you to add light pollution, narrowband, or color filters to your imaging setup without needing a separate filter cell.
This adapter's primary function is to connect a camera or accessory that has a female M48x0.75 thread to a telescope's 50.8mm (2-inch) focuser. This allows you to use M48-threaded imaging equipment, such as cooled astro cameras or DSLRs with M48 rings, with any standard 2-inch visual back.
To use this adapter with a DSLR or mirrorless camera, you first need to remove the camera lens. Then, attach an M48 T-ring specific to your camera's bayonet mount. Once the T-ring is on your camera, you can screw this PrimaLuceLab adapter directly onto it, creating a secure 2-inch barrel for insertion into your telescope's focuser.
No, this adapter is specifically designed to prevent vignetting with large sensors. It features a 44mm clear aperture, which is large enough to pass the full light cone from the telescope to a full-frame sensor without clipping the edges of the field of view.
Yes. The telescope-facing side of the adapter has a standard M48 female thread. This allows you to screw in any standard 50.8mm (2-inch) astronomy filter, such as a light pollution filter, UHC filter, or narrowband filter, directly into the adapter.
Absolutely. If your cooled camera has a female M48x0.75 thread on its front plate, this adapter will screw directly into it. This provides a simple and secure way to mount your camera into any 2-inch focuser for imaging.
Yes, this adapter can be used to connect other accessories with M48 threads, such as filter wheels or off-axis guiders, to your focuser. Simply thread the adapter onto the M48 port of your accessory to create a 2-inch nosepiece for your imaging train.
| Telescope Side Connection | 50.8mm (2") Barrel |
| Camera/Accessory Connection | M48x0.75 Female Thread |
| Filter Thread | M48 (for 2" filters) |
| Clear Aperture | 44mm |
| Construction | Black Anodized Metal |
| EAN Code | 8059020773854 |
M48-50.8mm Photographic Adapter
× 1