Offering moviemakers a powerful new creative tool, Sony has developed an advanced Super 35mm / APS-C format power zoom lens that starts at 18mm wide angle and extends to 110mm at the telephoto end (27mm - 165mm equiv. in 35mm format ). The new lens has a 6.1x high zoom ratio, even with inner focus, and maintains a constant F4 maximum aperture throughout its zoom range for beautiful depth of field effects and stable exposure control. An ideal companion to a wide range of Alpha cameras, from the PXW-FS7 professional camcorder to interchangeable-lens cameras such as a7 series and a6300, this G Lens delivers image quality that will satisfy even the most demanding of professional users. It consists of 18 elements in 15 groups, including 6 aspherical elements and 3 ED (Extra-low Dispersion) glass elements and features a 7 blade circular aperture design. This highly intricate design delivers extremely high resolution image quality and is particularly suited to professional 4K movie shooting. The E PZ 18-110mm F4 G OSS is only the second lens to benefit from Sony's Smooth Motion Optics (SMO) design and construction, which has been developed to eliminate unwanted image shifts while making adjustments during movie shooting. SMO addresses three particular aspects of lens operation that can have a significant impact on movie quality: Focus Breathing, where shifts in angle of view during focusing are minimized by an internal focus mechanism; focus shift, where small shif