Tip: Generally, there is no need to adjust the shims after replacing the mount. If the back focus needs to be adjusted after replacement, please refer to the "Back Focus Adjustment" section below.

1. Mount Disassembly

Step 1: Rotate the locking ring counterclockwise by 90 degrees until it cannot be rotated any further. 

Step 2: Press the mount release button, rotate the mount counterclockwise, and pull it upward to complete the mount disassembly.

2. Mount Installation

Step 1: Please confirm that the locking ring lever is at the leftmost position, corresponding to the position in the figure. 

Step 2: Align the notch at the bottom of the mount with the small screw mark protruding on the mount plane, and place the mount down. 

Step 3: Press the mount release button and rotate it clockwise until you hear a "click" sound to stop rotating. 

Step 4: Rotate the locking ring clockwise to the top position to complete the mount installation. 

3. Disassembly/Installation of Filter Elements in

Pinch the rear filter Elements in handle, and you can directly pull out or push in the filter Elements in to complete disassembly or installation.