The 4K Premier UHD UA107X8.4 Box-Type 107x Zoom with OIS from Fujinon is box-style field lens featuring a high 107x zoom range and 4K optical-quality imaging. This lens has an 8.4-900mm zoom with a 16.8-1800mm range when using the built-in 2x extender. Its OS-TECH optical image stabilization is designed to produce steady shots, even at long ranges, and can be switched on and off. Aspherical elements, a multi-layer lens coating, and extra-low dispersion glass help to produce an optimal image. The 4K Premier UHD UA107X8.4 has a 9-blade iris for attractive bokeh and natural-looking bright objects. Crisp, high resolution images with detailed contrast levels, HDR (high dynamic range), and true blacks are achieved with the use of optical simulation technologies, extra-low dispersion glass, minimization of aberrations, and advanced HT-EBC lens coating. This versatile box-type 107x zoom includes an array of features for optimal 4K UHD image-capture. With the push of a button, the 0.7 second QUICK ZOOM feature allows the operator to zap into a telephoto shot to check focus, then zoom back out to the original frame. An RS-232 port connects the lens to a PC or other control device. Two-shot presets save the zoom and focus parameters for your chosen position. Additional functions include the FIND self-diagnosing lens electronics system, automatic focus “breathing” compensation, and lens data output for use with virtual/compositing systems. As with all Fujinon field lenses, the 4K Premier UHD UA107X8.4 zoom incorporates a fixed front element to protect the front focus element group while also reducing dust contamination.