William Optics 50/200 Refractor Guidescope RotoLock Gold OTA: guide-OTA in gold
The William Optics AC 50/200 is a compact refractor guide scope with a 50mm (2 inch) aperture and a 200mm focal length (f/4). Its 5.7-degree field of view makes alignment and finding a guide star easy, and the integrated dew shield keeps the front lens free from condensation.
With a tube weight of only 460 g (1 lb), this OTA hardly burdens your mounting. The 1.25-inch RotoLock clamps your guide camera firmly centered with a twist; the large ribbed ring also works with gloves. This version is gold.
Assembly
You mount the tube parallel to your main telescope, for example in the William Optics 50 mm tube clamps on a prism rail. By sliding the tube in the clamps, you align it exactly with your main optics.
Featured accessories
Combine the tube with the William Optics 50mm tube rings for scratch-free, adjustable mounting.
For whom yes and for whom no
- ✓ Astrophotographers looking for a lightweight, classic guide scope
- ✓ For those who use the guidescope on interchangeable setups
- ✗ WO owners with carrying handle: the slide-base UniGuide 50 mounts more directly
Specifications
| Opening | 50 mm (2 inches) |
| Focal length | 200 mm (f/4) |
| Field of view | 5.7 degrees |
| Camera connection | 1.25-inch RotoLock |
| Dew cap | Integrated |
| Tube weight | 460 g (1 lb) |
| Color | Gold |
You can find more accessories for this brand at the William Optics brand page.
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