Sirui K-40II Ball Head Aluminum 77 lbs Load

The Sirui K-40II Ball Head is a professional-grade support solution engineered to handle serious camera equipment with precision and stability. With a maximum load capacity of 77 lbs, it is built for photographers and videographers working with heavy setups — think large telephoto lenses, medium format bodies, or fully rigged cinema cameras on a sturdy tripod. The CNC-milled aluminum construction provides an exceptionally smooth ball surface finish that translates directly into fluid, controlled movements when adjusting camera position, while the friction control knob allows you to fine-tune resistance to match the weight of your specific gear.

The Arca-Swiss compatible clamping system ensures fast plate changes and broad compatibility with aftermarket plates, L-brackets, and lens foot plates. A dedicated 360-degree panning base operates independently of the main ball lock, enabling smooth panoramic rotation without disturbing your tilt angle — useful for stitching panoramas or executing slow panning moves for video. The vertical drop notch lets you quickly switch to portrait orientation, and the aluminum control knobs with knurled edges provide positive, confident grip even with gloves. Mounting is straightforward with a standard 3/8-inch base thread that fits virtually all tripod legs, while the included quick-release plate uses a 1/4-inch stainless steel screw for secure camera attachment. For photographers who need a ball head that won't compromise under heavy loads, the K-40II offers a compelling combination of capacity, build quality, and precise control.