While revolutionizing the world of photography equipment, the d4 Geared Tripod Head with Quick Set Classic Device from Arca-swiss eliminates the need for cumbersome 3D head setting levers. This innovative design ensures smooth camera swiveling without the hindrance of oversized dimensions or heavy loads. The Arca-swiss d4 gearhead ingeniously combines the pivot points of the X and Y movements at a single point, resulting in the smallest possible rotational radii. This unique feature facilitates minor camera adjustments, thereby minimizing scale deviations that often lead to reduced depth of field in digital photography and necessitate time-consuming corrections. Constructed with a high-strength special alloy, the d4 gearhead features separate gear mechanisms for X and Y movements. These self-locking, micrometric movements each have their own fine-tuning knob and a lockable free wheel button, allowing for optional freewheeling modus. This provides the freedom of movement akin to a spherical head, enhancing the versatility of the gearhead. Like the renowned cube C1 from Arca-swiss, the d4 gearhead is equipped with a turning device on its base for precise camera alignment and a panning device under the camera mount for seamless panorama pans. This maintains the swivel axis for optimal image capture. Two bubble levels positioned at a 90-degree angle beneath the panorama feature aid in aligning the camera. The Arca-swiss camera mount also enables back and forth movement in the exposure axis, adding a fourth dimension to your photography experience, as symbolized by the model number d4. Despite these advanced features, the d4 Geared Tripod Head with Quick Set Classic Device maintains a lightweight design, weighing in at a mere 980 grams. Yet, it is robust enough to handle loads of up to 20 kg, making it a versatile and indispensable tool for both professional and amateur photographers..