Ultimate Form Factor Reduction with Flagship Resolution

The Sony CBK-3621XS (popularly designated as the Rialto Mini) represents the next leap in detached-sensor imaging technology for the CineAlta ecosystem. Specifically engineered for the VENICE 2 platform, this advanced extension kit separates the optical sensor block from the heavy processing brain with a radical 70% decrease in physical volume compared to its predecessor. Weighing just 0.54 kg in its native E-mount profile, this micro-head allows cinematographers to capture uncompromised 8.6K full-frame data in spaces where standard high-end cinema bodies cannot fit.

Extreme Mobility for Cinematic Gimbals, Drones, and VFX Rigs

The tiny profile of the CBK-3621XS fundamentally updates options for specialized camera movement, making it a perfect match for handheld running setups, tight automotive interiors, aerospace gimbals, and first-person-view POV helmets. For complex immersive media designs, the head's narrow width lets crews position two blocks close together for natural stereoscopic 3D capture, or arrange multiple units on compact multi-angle arrays to record pristine 360-degree plates for virtual background stages.

Creative Mechanics, Flexible Cables, and Drop-In Filters

To minimize weight and maximize agility on set, the extension head employs a manual drop-in neutral density filtering track. The kit ships with a comprehensive set of nine precision optical glass slides ranging from Clear to 8 stops (ND 2.4), letting operators manage exposure levels quickly without adding the weight of internal servo-motor assemblies. Signal communication travels through a thin, supple, detachable cable system that snakes effortlessly through tight spaces. This line can be extended up to 12 meters away from the main camera processing core without signal loss.

Broadcast and Virtual Studio Optimization Across Global Sets

The Sony CBK-3621XS provides an exceptional workflow solution throughout Pakistan, the UAE, and Africa, where commercial agencies, action cinema directors, and modern XR/Virtual Production stages require high-intensity motion tracking without compromising resolution. The block features two illuminated tactile assignable buttons for instant function toggling (like False Color or Record) right on the head, alongside dedicated 3-pin Fischer 24V DC input/output links to supply power straight to lens motors. Built to handle rough field environments, the rugged chassis features dust, moisture, and shock resistance, keeping your tracking perfectly clean in any climate.