Slide-Base 50mm Guiding Rings
William Optics
From ~$66.77
3 stores
The William Optics Slide-Base 50mm Guiding Rings are precision-engineered dovetail mounting rings designed to securely hold 50mm guide scopes and finder scopes on William Optics slide-base handles and compatible telescopes. Featuring six-point adjustment thumbscrews and a felt-lined interior, these rings provide precise alignment for autoguiding during long-exposure astrophotography sessions. The rings accommodate finder or guide scope tubes with outside diameters between 33mm and 58mm, making them versatile for various guiding optics, while the integrated slide-base design allows for effortless adjustment and fine-tuning to achieve optimal guiding performance.
Astronomy Plus
Slide-Base 50mm Guiding Rings (GR50II)
Worldwide shipping
CA$92.00
~$66.77
High Point Scientific
Slide-Base 50 mm Guiding Rings w/ Adjustment Screws - Silver
Ships to US only
$79.00
Astroshop.eu
(Guiding) Tube clamps 50mm
Worldwide shipping
€99.00
~$116.55
Specifications
| Interior Finish | felt-lined |
| Total Height with Slide Base | 92 mm |
| Adjustment Screws | 6-point |
| Total Length Outside Distance Between Rings | 98 mm |
| Total Inside Length Between Rings | 74 mm |
| Ring Thickness | 4.4 mm |
| Maximum Outside Diameter | 76.8 mm |
| Maximum Inside Diameter | 68 mm |
| Weight | 260 lb |
| Country of Manufacture | Taiwan |
| Compatible Tube Diameter Range | 33 mm |
| Ring Width | 12 mm |