Attaching the B4 Mount
1
4.6K
SDI OUT
LENS
Place Blackmagic URSA Mini Pro 4.6K vertically
on a solid, clean bench top to ensure that the
mount can be inserted vertically.
3
4.6K
SDI OUT
LENS
Loosely turn the five mounting screws until initial
contact is made with the shoulder of the lens mount.
NOTE
When removing the B4 mount, simply follow the instructions in reverse order
from step 4 to step 1.
TIP
When using a B4 lens with URSA Mini Pro 4.6K, set the resolution to 2K 16:9 or
lower, and 'window sensor' to 'on' in the 'record' tab of the dashboard. It is important to
use these settings to prevent vignetting of the image, as B4 lenses do not cover the
super 35mm image circle. Once you have attached a B4 lens to your camera and
adjusted the settings on your camera, you should also check the back focus
on the lens.
2
ND
FILTER
AUTO
W/B
Add the 0.10mm shim to the camera, then place
the Blackmagic URSA Mini Pro 4.6K B4 lens
mount onto the camera body ensuring the red dot
is at the 12 o'clock position.
4
SDI OUT
ND
FILTER
AUTO
W/B
LENS
Using the 2mm Hex driver, or torque wrench with
2mm Hex key, apply one full turn of pressure to
mounting screw 1, followed by one full turn to
screw 2. Repeat for screws 3 and 4, then 5.
Continue to apply one full turn to each screw in
the sequence above until all screws have reached
the maximum torque of 0.45Nm.
4.6K
3
1
ND
FILTER
4
2
AUTO
W/B
5
Interchangeable Lens Mount
153