The Vanguard QS-40 Quick Shoe is designed to provide a secure, stable mounting solution for compatible Vanguard tripod systems. Built as a proprietary quick-release plate, it ensures a precise fit and dependable performance with select Alta Pro and SBH head models. At its core, the QS-40 features a 3/8" camera mounting screw with pin, making it suitable for equipment that requires a larger mounting interface. This includes not only select cameras, but also spotting scopes and other optical devices that utilize standard 3/8" tripod connections—expanding its versatility beyond traditional imaging setups. To improve balance and positioning, the plate offers an adjustable thread position with up to 1 inch of travel, allowing you to fine-tune placement based on your equipment’s weight distribution. This is especially useful when working with heavier or front-weighted gear. The QS-40’s compact platform (approximately 1.97" x 1.46") provides a stable base while maintaining a low-profile design. Despite its solid construction, it remains lightweight at approximately 0.08 pounds, making it easy to carry as part of your kit or keep as a spare for multi-device setups. Designed for efficiency, the quick-release system allows for fast attachment and removal, helping streamline transitions between handheld and tripod-mounted use. Whether switching between devices or repositioning in the field, it keeps your workflow smooth and uninterrupted. With its dedicated compatibility, adjustable positioning, and secure mounting interface, the QS-40 provides a dependable foundation for both imaging and observation—ensuring your gear stays exactly where it needs to be. Suitable for models such as: PH-35 Head PH-50 Head PH-55 Head SBH-100 SBH-250 SBH-30 SBH-50