William Optics 400mm Losmandy Swan Series: the wide base for your heavy tube
This William Optics Swan-series dovetail is a 400 mm (15.7 inch) Losmandy-style saddle in red aluminum. The broad Losmandy profile is the standard for heavier tubes: more clamping surface and more rigidity than a Vixen rail, thus no bending under a large apo with a complete photo train.
The 400 mm length provides ample range for balancing: slide the tube into the clamp until the center of gravity is correct, even if you add a camera or guidescope later.


Features
- Losmandy profile: wide clamping surface, high rigidity
- 400 mm (15.7 inch) length for ample balancing range
- CNC-milled aluminum, red finish
- Mounting holes for pipe rings and accessories
Compatibility
Fits any Losmandy-style (D-profile) saddle clamp. For lighter setups with a Vixen clamp, the 290 mm Vixen dovetail is the suitable alternative.
Specifications
| Profile | Losmandy style (D) |
| Length | 400 mm (15.7 inches) |
| Material | Aluminum |
| Color | Red |
You can find more accessories for this merk at the William Optics merk Page.





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