William Optics 50/200 Refractor Guidescope RotoLock

William Optics 50/200 Refractor Guidecope RotoLock: lightweight guide OTA with RotoLock

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 tubing weight of only 460 g (1 lb), this OTA hardly strains your mounting setup. The 1.25-inch RotoLock clamps your guide camera securely in place with a twist; the large ribbed ring also works with gloves. This model is black.

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.

Included

• AC 50/200 guidecope-OTA
• 1.25 inch RotoLock clamp

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

You can find more accessories for this brand at the William Optics brand page.