46メガピクセル（4,800x3,200x3層) の Foveon X3センサーを搭載（発売日、価格は未定）
46 megapixel 24×16mm APS-C sensor ( Foveon X3 sensor )
Lightweight yet solid magnesium alloy body
Weather-resistant O-ring sealing connections
Dual ‘TRUE II' image processing engines
11 Point Twin Cross AF Sensor
Sigma SD1 camera specifications
Format Interchangeable lens SLR camera
Storage Media Compact Flash (Type I, UDMA compatible)
Image Sensor Size 24 x 16mm (1.5x APS-C)
Lens Mount SIGMA SA bayonet mount
Compatible Lenses SIGMA SA mount interchangeable lenses
Image Sensor X3 direct image sensor (CMOS)
Effective Pixels 46MP (4,800×3,200×3 layers)
Aspect Ratio 3:2
Viewfinder Type Pentaprism SLR viewfinder
Viewfinder Frame Coverage 98% vertical, 98% horizontal
Viewfinder Magnification 0.95x (with 50mm lens at infinity)
Eye point 18mm
Diopter Adjustment Range -3.0 dpt - +1.5 dpt
Auto Focus Type TTL phase difference detection system
AF Point 11 points twin cross sensor
AF Operating Range EV -2 to +19 (ISO100)
Focus Mode • Single AF • Continuous AF (with AF motion prediction function) • Manual
Focusing Screen Fixed, all matt screen
Mirror Quick return
Depth of Field Preview Yes
AF Point Selection • Automatic Selection• Manual Selection
Active AF point indicator Superimposed in viewfinder
Focus Lock Shutter Release Halfway-Down position
Built-in Flash • Manual Pop-up Built-in flash • GN11 • 17mm lens angle covered
Flash Metering System S-TTL Auto Flash
Flash Compensation ±3EV (1/3 stop increments)
Flash Sync Terminal Available
Flash Connectivity Hot shoe (contact X synchronization at 1/180 sec. or less, with dedicated flash linking contact)
LCD Monitor • 3.0" TFT colour LCD monitor • Approx. 460,000 Pixels
Dimensions 145.5 mm/5.7" (W) × 112.5 mm/4.4"(H) × 80.0 mm/3.1"
Weight TBA
▶ Sigma releases SD1 flagship digital SLR: Digital Photography Review
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追記：SD1 国内発表 ▶ 46メガピクセル（4,800x3,200x3層）フルカラーX3ダイレクトイメージセンサーを搭載 レンズ交換式デジタル一眼レフカメラ「SIGMA SD1」開発発表 | 株式会社シグマ
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