Format	Interchangeable lens SLR camera
Storage Media	Compact Flash (Type I, UDMA compatible)
Image Sensor Size	23.5×15.7mm
Lens Mount	SIGMA SA bayonet mount
Compatible Lenses	SIGMA SA mount interchangeable lenses
Angle of View	Equivalent to approx. 1.5 times the focal length of the lens (for 35mm cameras)
Image Sensor	X3 direct image sensor (CMOS)
Pixels	Total Pixels 48MP, Effective Pixels 46MP (4,800×3,200×3 layers)
Aspect Ratio	3 : 2
Still Image Format	Exif 2.3, DCF 2.0
Recording Mode	Lossless compression RAW data(12-bit, High, Medium, Low), JPEG(High, Medium, Low)
Capture File Size	RAW High Approx. 45 MB (4,704×3,136×3)   Medium Approx. 24 MB (3,264×2,176×3)   Low Approx. 12 MB (2,336×1,568×3) JPEG High Fine Approx. 10 MB (4,704×3,136)   Normal Approx. 5.6 MB (4,704×3,136)   Basic Approx. 4.2 MB (4,704×3,136) Medium Fine Approx. 5 MB (3,264×2,176)   Normal Approx. 2.7 MB (3,264×2,176)   Basic Approx. 2 MB (3,264×2,176) Low Fine Approx. 2.5 MB (2,336×1,568)   Normal Approx. 1.4 MB (2,336×1,568)   Basic Approx. 1 MB (2,336×1,568)
Continuous shooting speed	High：5 frame/sec., Medium：6 frame/sec., Low：6 frame/sec.
Continuous buffer	High：Max. 7 frames, Medium：Max. 14 frames, Low：Max. 14 frames
Interface	USB(USB2.0), Video Out (NTSC/PAL)
White Balance	8 types (Auto, Daylight, Shade, Overcast, Incandescent, Fluorescent, Flash and Custom)
Color Mode	7 types (Standard, Vivid, Neutral, Portrait, Landscape, B&W, Sepia)
Viewfinder Typ	Pentaprism SLR viewfinder
Viewfinder Frame Coverage	98% vertical, 98% horizontal
Viewfinder Magnification	0.95x (50mmF1.4 - ∞)
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 -1 to +18 (ISO100)
Focus Mode	Single AF, Continuous AF (with AF motion prediction function), Manual
AF Point Selection	Automatic Selection, Manual Selection
Metering Systems	77 segment Evaluative Metering, Spot Metering, Center Area Metering, Center-Weighted Average Metering
Metering Range	EV 1 to 20 (50mm F1.4 : ISO100)
Exposure Control System	[P] Program AE (Program Shift is possible),[S] Shutter Speed Priority AE,[A] Aperture Priority AE, [M] Manual
ISO Sensitivity	ISO100,200,400,800,1600,3200,6400
Exposure Compensation	±3 EV (in 1/3 stop increments)
Auto Bracketing	Three or Five frames (in 1/3 steps, Appropriate Exposure-Under Exposure-Over Exposure)
Shutter Type	Electronically Controlled Focal Plane Shutter
Shutter Speed	1/8000 – 30 sec.,Bulb (up to 30 sec. With Extended Mode: 2 min.)
Flash Connectivity	Hot shoe (contact X synchronization at 1/180 sec. or less, with dedicated flash linking contact)
Built-in Flash	Manual Pop-up Built-in flash, GN11 (17mm lens angle covered)
LCD Monitor	Type : TFT color LCD monitor, Monitor Size : 3.0", LCD Pixels : Approx. 460,000
Reviewing Images	Single frame display, Multi display [9 frames],Zoom, Slide Show
LCD Monitor Language	English / Japanese / German / French / Spanish /Italian / Chinese (Simplified) / Korean / Russian
Power	Li-ion Battery Pack BP-21, Batterry Chager BC-21,AC Adapter SAC-4 (optional)
Dimensions	145.5 mm/5.7" (W) × 113.5 mm/4.4"(H) × 80.0 mm/3.1
Weight	700g/24.7oz. (without battery and card)
SD1 Accessories	.Li-ion Battery BP-21 .Battery Charger BC-21 .USB Cable .Video Cable .Neck Strap .Eye Cap .Body Cap .Eyepiece Cap .SIGMA Photo Pro Disc .SD1 Instruction Manual * SIGMA Photo Pro 5.0 System Requirements

* The appearance and specifications are subject to change without notice.