Featuring all functions essential to cinematography, these lenses keep weight and size to a minimum, while their specification is optimized for enhanced durability. Leveraging the high-precision, high-efficiency mass production technologies developed for its still camera lenses, SIGMA has made extremely lightweight and compact cine lenses a reality. These lenses are therefore ready for higher-resolution shooting and are ideal for chroma keying as well. The lineup features the same optical system that delivers 50-megapixel or higher resolution in still photography. Standardized color balance makes color correction a snap. The benefit of these efforts can now be enjoyed in cine lenses as well.Ĭolor balance standardized across the lineupĪll of the lenses in the lineup are designed to comply with SIGMA's CCI standard. To fulfill the high demands for image quality in still photography, SIGMA has solved a wide range of issues. Sharpness combined with outstanding bokeh effect Ghosting has also been checked at every prototype stage, with its causes identified, assessed, and eliminated. Thanks to the ultra-high resolution sensors, high- performance shooting is assured.Ĭomputer-based ray tracing has been used from the design stage onward to minimize flare and ghosting and enhance contrast in backlit conditions. Each and every lens is checked before shipping. Even previously undetectable high-frequency details are now within the scope of their quality control inspections. SIGMA has developed their own A1 proprietary Modulation Transfer Function (MTF) measuring system using 46-megapixel Foveon direct image sensors. SIGMA lenses are born of outstanding design concepts and excellent manufacturing technology, but they are not complete until they undergo their uncompromising lens performance evaluation. There are three requirements for outstanding lenses: Fine design, precise manufacturing and inspection that ensures compliance with all specifications. Each lens is manufactured and inspected in the Sigma factory located in Aizu, Japan. They also include a manual linear iris control and electronic mounts that provide vital camera metadata. The CINE lens design features standardized essentials such as an 82mm front for ND filters and a 95mm front diameter for matte box use and standard gear positions for accessories like follow focus. It touts a long focus rotation of 180 degrees and is guided by cams for smooth operation and accuracy. These lenses bring a consistent level of light to the production and offer greater consistency with regards to the film's look and color/contrast before it enters 180 Degree focus Resolution matching up to Standardized essentials: Gear Position, 95mm Front DiameterĮach CINE lens model is weatherproof and has luminous paint markings to aid in changing and operating the lens in the dark. With the five prime lenses from FF High Speed Prime Line, there is no need to change the lighting to shoot a variety of cuts. They are compatible with full-frame sensors and, while being more compact, can offer superior resolution than other high-end prime sets do. The lineup ranges from 20mm to 85mm, and all five lenses are T1.5. SIGMA has developed its own production system by establishing the required technology for mass production of high-performance lenses for ultra-mega-pixel shooting. In the world of digital film production, there is an increasing demand for higher resolution, and SIGMA's new lineup of high-performance lenses is compatible with the latest, high-resolution digital cinema cameras. However, the histogram distribution of a well-exposed image will vary greatly depending on the subject.SIGMA CORPORATION has entered into the cinema lens market with the release of its SIGMA CINE LENSES, designed specifically for cinematography. A histogram with a fairly even distribution of pixel values usually indicates that the image is well exposed, with good contrast. When the histogram runs off the right side, the image will have many white pixels-either because the image is overexposed or because it is a bright scene such as the beach or snow. When the histogram is higher on the left side, the image is mostly composed of dark pixels, causing it to appear dark-either because the image is underexposed or because it is a dark scene such as night shot or sunset. By examining the histogram you can gauge the over-all exposure of an image. The vertical axis shows the proportion of pixels at each level of brightness. The horizontal axis shows the brightness level (from 0 to 255), with darker pixels towards the left side and brighter pixels toward the right. A histogram is a graph depicting the distribution of brightness values in the image.
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