The focus demand can be added to turn affordable photography lenses into amazing broadcast lenses! The focus and zoom demands have USB-C connections so they work with all Blackmagic Studio Camera models. Each zoom and focus demand has 2 USB-C ports, so you can daisy chain them then connect to the camera with a single USB connection. The design has an incredibly precise feel and so you get very fine lens control, and you can frame and adjust the lens without taking your hands off the tripod handles. The buttons can be customized so you can assign different camera functions to them! Plus, hardware is included for mounting the focus and zoom demand onto tripod handles.

B4 Lenses with iris and zoom control include:

• Fujinon B4 lens models with HA, ZA, XA, UA and LA prefixes in their model name and RM in their suffix. For example, Fujinon XA20sxBRM.
• Canon B4 lens models with HJ, KJ and CJ prefixes and RSE or RSD in their suffix. For example Canon KJ20x8.2B IRSD.

B4 Lenses with full servo control for focus, iris and zoom include:

• Fujinon B4 lens models with HA, ZA and UA prefixes in their name and the letters RD or ZD in the suffix. For example, Fujinon HA22x7.8 BERD.
• Fujinon box lenses with XA and UA prefix in their name.
• Canon B4 lens models with HJ, KJ..ex and CJ prefixes in their name and the letters ASE or ASD in the suffix. For example, Canon HJ24ex7.5B IASE.
• Canon box lenses with XJ and UJ prefix in their name.