Arca Swics type Conversion Set for Manfrotto 410 Gear Head. Combination of plate and Arca Swiss Type clamp will let you use Manfrotto geared head with any arca Type equipments. Manfrotto gear head is more precise than ball head and preferred by many photographers. Many architectural and interior photographers actually prefer geared 3-axis tripod heads rather than ball heads because they can make precision adjustments to each axis. Two popular heads are Manfrotto 405 and 410 which each use Manfrotto QR plate. Arca-Swiss plate fans can now bypass this. Plate Specifications: 3.56 inches long, 2.56 inches wide, 5/8 inches thick,Built-in bubble level, Eight 10-32 tapped holes placed around the 1/4-20 hold in 90 degree increments. Hole to hole mounting distance between 10-32 holes is 30 mm or 45 mm. This is the extended version of the plate. Clamp center is located on Manfrotto 410 camera/lens mount axis and it is the same as the head panning base. When the head is panned both the head and camera/lens rotate around the same axis. For distant subjects original Manfrotto arrangement for this gear head is just an inconvenience. For critical panoramic or most especially macro work this is a killer and makes the 410 useless. Using this extended adapter plate/clamp combination you can enjoy your pano and macro photography again. Clamp can be positioned in relation to adapter plate in 90 degree increments. It cannot be oriented with knot on bubble level side.Made in USA