The HDx1.4 converts B4 mount video lenses for use with single sensor (S16 or 2K) while slightly correcting the image.  The HDx1.4 can be used with the following cameras with only one stop of light loss (1080p): Phantom Flex 4K Sony F5 / F55 2K Sony F700 Blackmagic Pocket  

The HDx2 Mark II was specifically designed to give cinematographers the ability to use all HD ENG 3D CCD lenses on high speed Phantom cameras and MFT format cameras (22 mm). This converter is best suited for scenarios when our HDx35 Mark III adapter‘s magnification is too strong or when light loss has to be restricted.

The HDx35 Mark III is the standard converter for high performance HD ENG 3D CCD lenses, such as TV box lenses, Digiprimes and other B4 mount 2/3'' HD broadcast lenses.This optical converter magnifies for all S35 sensor cameras.     Max. Input T-Stop: 1.9     Focal Length Extension: 2.6x     Max. Image Diameter: 30.2mm  

  IB/E Velociter x0.8 Optical ConverterThe Velociter x0.8 optical converter reduces the focal length of the RAPTOR macro lenses by 0.8x. At the same time it increases the lens speed by almost 1 stop. For example, the RAPTOR 100 mm T2.9 becomes a 80 mm T2.3. The Velociter x0.8 features high-index, low-dispersion glass as well as multi layer coating to ensure the highest possible resolution and contrast with minimal optical degradation. To create an optical design that is optimized for the RAPTOR macro lens family and digital cameras, the maximum input T-Stop is 2.9. The Velociter x0.8 can easily be assembled in exchange of the extension tube of the PL UMS mount. Note: With the Velociter connected to the lens, only PL cameras can be used. Not Compatible with Raptor 60mm. Technical data Max. image diameter (mm) 36.0 Magnification x0.8 Max. input T-Stop 2.9 Light drop (stops) 1.0 Diameter (mm) 54.0 Length (mm) 31.0 Weight (kg) 0.18   Data sheet download IB/E Velociter x0.8 Optical Converter