The Macro 150 is the ideal tool for fine-focus adjustment for precise macro compositions. Focus stacking is easier than ever with the Macro 150 thanks to an integrated zeroing dial and a lead screw with a 1mm pitch, meaning one revolution of the knob equals exactly 1 mm of travel. Backlash and drift are essentially eliminated due to tight-tolerance CNC-machined components. Unlike other macro rails, there is no need to adjust the stage tension, as it is individually set during assembly. Load capacity is rated to 20lbs.