P+S

Mirrorless-Designed Leitz HEKTOR Cine Primes to ARRI Alexa  Cinematic look meets mechanical precision. Until now, the new Leitz HEKTOR Cine lenses were developed exclusively for modern mirrorless camera systems. A major reason for this is the short flange focal distance of the mirrorless platforms they were designed for. Because the HEKTOR lenses were engineered around these short flange depths, using them on the ARRI Alexa was previously impossible. A conventional adapter would position the lens too far from the sensor, making infinity focus unattainable.P+S Technik now overcomes this limitation with HEXAMO—a specially developed mount system that enables the use of Leitz HEKTOR Cine lenses on the ARRI Alexa platform. How does the system work?The original ARRI lens mount can be removed by loosening four screws. The conversion is carried out on both the camera and the lens.HEXAMO Camera MountThe original Alexa mount block is replaced with a specially developed low-profile mount from P+S Technik, creating the required flange depth for the HEKTOR lenses.Lens Interface ConversionEach HEKTOR lens receives a precision-machined three-part rear interface assembly. This replaces the original rear mount and forms the dedicated mechanical counterpart to the HEXAMO camera mount. After installation, every lens is precisely calibrated to ensure accurate flange depth and reliable optical performance.Precision EngineeringThe combination of the HEXAMO camera mount and the dedicated rear lens interface enables HEKTOR lenses to operate on the ARRI Alexa with full infinity focus while maintaining complete compatibility with the camera's internal filter system.Secure Locking MechanismThe red locking ring provides a rigid, play-free connection between lens and camera, easily withstanding the forces generated by modern wireless follow focus (FIZ) systems on set. The ResultThe unmistakable look of the Leitz HEKTOR series—characterized by smooth focus roll-off, organic rendering, and distinctive flares—can now be combined with the proven ARRI Alexa platform.For cinematographers, rental houses, and productions, HEXAMO opens the door to a unique combination of the HEKTOR image signature and the reliability of the ARRI Alexa—something that was previously not possible.What's included1× P+S HEXAMO Camera Mount with red locking ring 1× Three-part Rear Lens Interface (per lens) 1× Mount Cap Note: The ARRI Alexa mount dummy shown in the product images is for display purposes only and is not included in the scope of delivery. P+S HEXAMO – Press Coverage Cined The Cine Lens 4KShooters Videoaktiv Film TV Video Panorama Indie Filmmakers Broadcast Pro British Cinematographer Pro Video Cinematography World NAVER Japan The HEXAMO Mount System is available exclusively from P+S Technik and CBM.

For Cooke SP3 & AP3 Prime Lenses only: M-Mount to ARRI Interchangeable Lens Port The P+S SPM Camera Mount is a precision-engineered, mechanical lens port replacement. It is explicitly designed to interface Cooke SP3 ans AP3 prime lenses (Leica M-mount configuration) with ARRI cinema camera bodies. This mount compensates for the mirrorless flange focal distance and represents the dedicated solution to attach the SP3 or AP3 M-mount series to deep-body ARRI camera housings. P+S SPM Mount for Cooke SP3 Primes with M-Mount P+S SPM Mount for Cooke AP3 Primes with M-Mount .cms-image-stack { display: flex; flex-direction: column; gap: 24px; } .cms-image-item img { width: 100%; height: auto; display: block; } .cms-image-item figcaption { margin-top: 8px; font-size: 14px; line-height: 1.4; color: #666; text-align: center; font-style: italic; } Installation & DesignMounting Mechanism: Direct replacement of the camera's original lens port. Installation requires unscrewing the factory lens port and replacing it directly with the SPM unit.Material Composition:  Aluminium construction for robust on-set durability and structural stability.Camera CompatibilityARRI Alexa Mini *ARRI Alexa Mini LFARRI Alexa 35ARRI Amira ** Required/Recommended Modification: For implementation on ARRI ALEXA Mini and ARRI AMIRA cameras, the installation of the original ARRI "stray light shield" (ARRI Part Number: K5.0016435) is highly recommended to suppress internal stray light and optical reflections.Technical Specifications & ConstraintsData Transmission: This mount operates 100% mechanically. It features no electronic contact blocks or interface pins; lens metadata (aperture, focus distance) is not transmitted to the camera body.Mechanical Clearance Warning: Explicitly engineered for the Cooke SP3 series. Do not attach generic photographic M-mount lenses without verifying rear-element clearance. Protruding rear optical assemblies pose a severe risk of mechanical impact with the camera's internal filters or sensor.Packaging & Physical DimensionsMaterials: AluminiumWeight: 91 gDimensions (L x W x H): 8.9 x 8.9 x 1.3 cm