Solid grip for your setup
The William Optics 90mm dovetail clamp gives your telescope or accessory a solid base. You clamp the dovetail rod evenly along its entire length, keeping everything stable. No wiggling, no fuss-just a peaceful viewing experience.

Why this works for you
The clamp distributes pressure nicely, keeping your mount sturdy without scratching or shifting. This feels instantly reliable, especially when you change accessories often. You tighten the clamp, and you immediately notice that everything stays tight, even when you tilt or realign your telescope.

Flexible assembly, just the way you want it
You easily attach the clamp with four M8 threads or a 1/4″ photo screw. Thus, it fits effortlessly on different mounting plates and setups. Ideal if you like to expand your equipment or change configurations from time to time.
Ruggedly built, ready for outdoors
The aluminum design in striking red is not only beautiful, but also durable. The clamp feels sturdy and remains reliable even on cold nights or frequent use. With its compact size, it easily fits in your suitcase or bag.
Specifications
General
| Feature | Description |
|---|---|
| Type | Prism Clamp |
| Design | Vixen |
| Length | 90 mm |
| Width | 63 mm |
| Color | Red |
| Weight | 230 g |
Capacity
| Feature | Description |
|---|---|
| Wire | M8 |







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