D4 Geared Tripod Head with Quick Set Classic Device - (Plate Not Included) - Arca Swiss 3 Year Limited Warranty. 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.
The Arca Swiss B2 Monoball is truly a MONSTER! I use a very heavy 4x5 setup with a scanning back for high magnification macro and micro work. I have tried many tripod heads over the years and just recently I was able to get my hands on this beauty. It is twice the size (or more!) of a B1 or a Z series Monoball, and it holds the camera at any angle absolutely rock solid, no creep, no shake, no movement at all. The exposures with a scanning back are not measured in seconds, rather in minutes, on top of that, high magnification macro is absurdly demanding when it comes to camera movement. So far, of all, the heads I have tried, this is by fay my favorite, I use it every day and will probably continue to do so for a long time.