Promaster 9259 工作室燈光安裝夾具

The reversible stud with both 1/4" and 3/8" threads is a lifesaver, as it fits all my light modifiers without needing an adapter. It grips my aluminum light stands tightly, even when I adjust the angle.

Needed a sturdy clamp that could actually hold my heavy studio light steady, and this one grabs onto my metal shelving like a vise. The 1/4" mounting stud is solid and doesn't wobble at all.

The 5/8" reversible stud is what sold me—swapping between my 1/4" and 3/8" mounts takes seconds, and the clamp grips my light stand's flat bar without budging. It’s solid enough that I don’t worry about the softbox tipping mid-shoot.