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The Nikon D3S is a 12.1-megapixel professional-grade full frame (35mm) digital single-lens reflex camera (DSLR) announced by Nikon Corporation on 14 October 2009. The D3S is the fourth camera in Nikon's line to feature a full-frame sensor, following the D3, D700 and D3X. It is also Nikon's first full-frame camera to feature HD (720p/30) video recording. While it retains the same number of pixels as its predecessor, the imaging sensor has been completely redesigned.〔 Nikon claims improved ultra-high image sensor sensitivity with up to ISO 102400, HD movie capability for extremely low-lit situations, image sensor cleaning, optimized workflow speed, improved autofocus and metering, enhanced built-in RAW processor, quiet shutter-release mode, up to 4,200 frames per battery charge and other changes compared with the D3.〔 It was replaced by the D4 as Nikon's high speed flagship DSLR. ==Features== *Full-Frame (36 mm × 24 mm) 12.1 megapixel sensor with ISO 200–12800 (ISO 100–102400 Boost) using reworked gapless microlenses *14-bit A/D conversion, 12 channel readout *Image sensor cleaning (dust removal with 4 frequencies) *Nine to eleven frames per second in continuous and FX/DX mode *Quiet shutter-release mode *Faster operation workflow *Automatic correction of lateral chromatic aberration for JPEGs. Correction-data is additionally stored in RAW-files and used by Nikon Capture NX, View NX and some other RAW tools. *Larger buffer for 48 RAW frames in one burst *Enhanced built-in RAW processing with extended Retouch menu for image processing without using a computer *720p/24 frames HD movie mode for extremely low-lit situations,〔〔 50/60 Hz flicker reduction, HDMI HD video output and stereo input (3.5-mm diameter) with optional manual sound level control. The Motion JPEG compression allows easy extraction of single frames afterwards as JPEG *Supports DX lenses (5.1 megapixels), viewfinder automatically masks. Newly added 1.2x crop factor *Multi-CAM3500FX Auto-focus sensor (51-point, 15 cross-type, more vertical coverage) with improved acquisition and tracking and Auto-focus calibration for up to 20 separate lens settings *1005-pixel AE sensor enables Auto-focus tracking by color, highlight analysis and Scene Recognition System *Kevlar/carbon fibre composite shutter with a rating of 300,000 actuations *Live View with either phase detect or improved contrast detect Auto Focus *Virtual horizon indicates in Live View mode, also available during video capture *"Active D-Lighting" with six settings and bracketing (adjusts metering and D-Lighting curve) *Dual Compact Flash UDMA card slots (mirror, overflow, back-up, RAW on 1/JPEG on 2, Stills on 1/Movies on 2, copy) *Expeed 2 image processor with power management for up to 4,200 frames per battery charge *Dual battery charger as standard *Fully weather sealing with series of O-rings and other specialized seals available * GPS interface for direct geotagging, supported by Nikon GP-1 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nikon D3S」の詳細全文を読む スポンサード リンク
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