Gerd Neumann jr. CTU XL M68x1 Camera Tilting Unit A camera tilt adjuster for large sensors. Three radial screws act on a conical surface, while disc springs retain the camera. Fine external adjustment helps correct sensor alignment and can reduce Newton rings in H-alpha imaging.
Manufacturer model: Gerd Neumann jr. CTU XL M68x1 Camera Tilting Unit · Specifications checked against manufacturer data on 2026-11-04
A camera tilt adjuster for large sensors. Three radial screws act on a conical surface, while disc springs retain the camera. Fine external adjustment helps correct sensor alignment and can reduce Newton rings in H-alpha imaging.
Legacy CTU XL M68×1, supplier 55175. Not the current CTU XT or XL 2.7-inch AP. Adjust from outside without removing the camera. Supplier lists 69 mm free transmission; this is not a guarantee of 69 mm unobstructed aperture through an attached M68 adapter.
| connections | M68×1 on both sides |
|---|---|
| optical length | 17.3 mm |
| adjustment travel | 1 mm total |
| adjustment rate | 0.2 mm separation change per screw revolution |
| body diameter | 119 mm |
| included adapter | Continuous M68×1 male-thread adapter |
Reference: Exact supplier model 55175.
Legacy CTU XL M68×1, supplier 55175. Not the current CTU XT or XL 2.7-inch AP. Adjust from outside without removing the camera. Supplier lists 69 mm free transmission; this is not a guarantee of 69 mm unobstructed aperture through an attached M68 adapter.
| Connections | M68×1 on both sides |
|---|---|
| Adjustment travel | 1 mm total |
| Adjustment rate | 0.2 mm separation change per screw revolution |
| Body diameter | 119 mm |
| Included adapter | Continuous M68×1 male-thread adapter |