Sigma | Sigma SD1 Merril Digital Camera Body **
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This truly groundbreaking digital SLR camera incorporates a 46 megapixel (4,800x3,200x3 layers) 24x16mm APS-C X3 direct image sensor. The SD1 is Sigma’s flagship digital SLR model housed in a solid magnesium alloy body making it extremely lightweight with an overall nice feel and pleasant handling. The splash proof feature protects the camera from the effects of harsh weather conditions. Incorporating a 24x16mm APS-C X3 direct image sensor, dual “TRUE (Three-layer Responsive Ultimate Engine) II” image processing engines and the 46 megapixel sensor ensures that high resolution images are processed quickly with high definition and a smooth and subtle graduation of color delivering an image size of approximately 35/45 mp in raw/tiff files. This latest technology meets the strictest standards and requirements of professionals and enthusiast photographers for all types of photography.


Magnesium body

The SD1 Merrill features magnesiumalloy-clad body construction. This rigid, tough yet lightweight body
securely protects the interior from shock and electromagnetic interference, while adding strength and durability to withstand challenging conditions.


Weather and dust resistance

Controls and joints are sealed to block dust and moisture from entering the card
slot, battery room and other parts of the camera interior. This enhances reliability
in harsh professional usage situations.

Drive Mode

Two-motor system prevents vibration

Using a two-motor system with dedicated motors for mirror-drive and shutter charge reduces the vibration of mirror movement, thereby preventing camera shake. A mirror lock-up mechanism prevents further vibration when the shutter is released. Preventing camera shake is especially important for macro photography and when using ultra-telephoto lenses.



Bright, wide-coverage viewfinder with integral pentaprism

The SD1 Merrill features a pentaprism viewfinder with 98% (vertical and horizontal) coverage, 0.95x magnification and an 18mm eye point. Diopter adjustment is provided over a range of -3 to +1.5 dpt.



Precise focus with 11-point twin cross sensor

The autofocus system features an 11-point twin cross sensor. This shifted twin cross type sensor improves AF accuracy. Selecting the AF point can be done manually
or automatically.


77-segment AE sensor for accurate exposure

The SD1 Merrill features a new 77-segment AE sensor using advanced AE algorithms to improve exposure accuracy. Exact control coordinated with the 11 AF points achieves accurate exposure even in difficult lightning conditions.

Memory Card

Uses fast, high-capacity CF cards

The SD1 Merrill accepts TYPE I CF cards. UDMA mode6 compatibility enables fast processing of large amounts of data. *It is not possible to use TYPE II CF cards or microdrives.


ISO100 - 6400

Noiseless image processing

The SD1 Merrill captures light effectively and ensures noiseless image processing. The image sensor provides high definition with rich, graduated tones.

User Interface

New functional and intuitive user interface for faster camera operation

The improved user interface provides faster and more convenient operation. Aperture and shutter speed can be set by their own dials. The exposure compensation button and exposure mode button are on top of the body for quick access.

A Quick Set (QS) menu lets you easily change commonly used functions. To display the QS menu, simply press the QS button. QS menu 1 is for ISO setting, flash mode, metering mode and AF mode; QS menu 2 offers white balance, image quality, image size and color mode.


Customizeable OK Button

User can allocate certain functions to the OK button for added convenience. These functions include Review Image, Rotate Image and Mark Image.


Dedicated BP-22 Lithium-ion Rechargeable Battery

The dedicated BP-22 lithium-ion battery is supplied as standard with the SD1 Merrill. It takes about 150 minutes to fully charge with the supplied BC-22 battery charger. The optional SAC-4 AC adapter lets the Sigma SD1 run on AC power from a wall socket.


X3® Direct Image Sensor

46mega pixels full color image sensor

The 46MP direct image sensor of the SD1 Merrill is a breakthrough that triples the 14MP resolution of the sensor used in Sigma cameras up to now, while retaining the "emotional image quality" that is unique to a full-color capture system. We enlarged the sensor to APS-C size (1.5x focal length equivalent), while narrowing pixel pitch, thereby dramatically raising the pixel count to 46MP (4,800 x 3,200 x 3).


Focal Plan Shutter

The durable focal plane shutter mechanism has a life cycle of over 100,000 exposures and dramatically reduces generation of dust. The photographer can enjoy taking pictures with confidence that the image sensor is clean and protected from dust or dirt originating inside or outside the camera.

Dual TRUE II Engine

TRUE II Image Processing Engine for X3® Direct Image Sensor

The SD1 Merrill incorporates a dual TRUE (Three-layer Responsive Ultimate Engine) II image processing engine which improves processing speed and overall image quality. The unique image-processing algorithm provides high resolving power and reproduces high definition images with richly graduated tones. In addition, the SD1 Merrill can record both RAW and JPEG files simultaneously.


Advanced DDR III Buffer for hight-speed, high-volume data processing

To handle large volumes of color data at high speed, the SD1 Merrill uses DDR III buffer memory technology, which delivers class-leading performance. The SD1 Merrill features a continuous shooting speed of 5 frames per second and can capture up to 7 RAW images per sequence in continuous shooting mode.


Fourmetering modes

The SD1 Merrill features 77-segment evaluative metering, center weighted average metering, center area metering and spot metering.

77-segment evaluative metering

Evaluative metering is suitable for general photography. Even in strong back lighting situations, the camera will give you the correct exposure.

Center weighted average metering

The camera will measure the average luminance of the entire picture area with additional emphasis on the center area. This is ideal when using optional exposure compensation.

Center area metering

The camera will measure the luminance of 10% of the entire picture area. This is ideal for metering backlit subjects.

Spot metering

The camera will measure the luminance of 1% of the entire picture area. This mode is suitable when you wish to set the exposure for a small portion of the scene and ignore the influence of the rest of the area.

Exposure Compensation

Exposure managemnent with manual control and auto bracketing

Exposure can be manually adjusted to suit your needs. When difficult lighting conditions make appropriate exposure unclear, auto bracketing lets you take a sequence of shots of the same subject at three or five different exposure levels. Bracketing can be set in 1/3EV increments up to +-3EV(3levels) or +-1.7EV(5 levels).

Built-in flash with 17mm angle of coverage

The Sigma SD1 Merrill camera's built-in flash has a guide number of 11 to cover a 17mm lens angle (equivalent to 25.5mm with a 35mm camera). The built-in flash can be synchronized to a shutter speed of up to 1/180 sec. The S-TTL automatic exposure system enables control of advanced flash photography.

Dust Protector to keep image sensor dust-free

Most digital SLR cameras are vulnerable to dust entering the body. If dust and dirt adhere to the image sensor, it may appear in the photos. The lens mount of the SD1 Merrill is equipped with a dust protector and the area around it is sealed to prevent dust from entering the body. Even in the unlikely event of dust adhering to the image sensor, the dust protector can be removed easily for sensor cleaning.


3.0" TFT Color LCD Monitor

The SD1 Merrill camera features a 3.0 inch TFT color monitor. This 460,000 pixel resolution LCD monitor benefits from a wide viewing angle, making it easy to check focusing and composition.




Format Interchangeable lens SLR Camera
Storage Media Compact Flash (Type I, UDMA compatible)
Image Sensor Size 23.5mm x 15.7mm
Lens Mount SIGMA SA bayonet mount
Compatible Lenses SIGMA SA mount interchangeable lenses
Angle of View Equivalent to approx 1.5x the focal length of the lens (for 35mm cameras)
Image Sensor Foveon X3® direct image sensor (CMOS)
Number of Pixels Total Pixels 48 MP (4,800x3,200x3 layers)
Aspect Ratio 3 : 2
Still Image Format Exif 2.3, DCF2.0
Image Recording Format Lossless compression RAW data (12-bit, High, Medium, Low), JPEG (High, Medium, Low)
Capture File Size
RAW High Approx 45 MB (4704x3136x3)
  Medium Approx 24 MB (3264x2176x3)
  Low Approx 12 MB (2336x1568x3)
JPEG High Fine: Approx 10 MB (4704x3136)
Normal: Approx 5.6 MB (4704x3136)
Basic: Approx 4.3 MB (4704s3136)
  Medium Fine: Approx 5 MB (3264x2176)
Normal: Approx 2.7 MB (3264x2176)
Basic: Approx 2 MB (3264x2176)
  Low Fine: Approx 2.5 MB (2336x1568)
Normal: Approx 1.4 MB (2336x1568)
Basic: Approx 1 MB (2336x1568)
Continuous shooting speed High: 5 frames/sec, Medium: 6 frames/sec, Low: 6 frames/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, Sunlight, Shade, Overcast, Incandescent, Fluorescent, Flash and Custom)
Color Mode 7 types (Standard, Vivid, Neutral, Portrait, Landscape, B&W, Sepia)
Viewfinder Pentaprism SLR viewfinder
Viewfinder Frame Coverage 98% vertical, 98% horizontal
Viewfinder Magnification 0.95 x (50mm F1.4-infinity)
Eye point 18mm
Diopter Adjustment Range -3dpt to + 1.5dpt
Auto Focus Type TTL phase difference detection system
AF Operating Range EV 0 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 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 ISO 100, 200, 400, 800, 1600, 3200, 6400
Exposure Compensation ±3EV (in 1/3 steps)
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: 2min.)
External Flash Synchronization 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 3.0” LCD monitor, LCD pixels approx.: 460,000
Reviewing Images Single frame display, Multi display [9 frames], Zoom, Slide Show
LCD Monitor Language Japanese, English, German, French, Spanish, Italian, Chinese (Simplified), Korean, Russian
Power Source Li-ion Battery Pack BP-21, Battery Charger BC-21, AC adapter SAC-4(optional)
Dimensions 145.5mm/5.7"(W) X113.5mm/4.4"(H) X 80.0mm/3.1"(D)
Weight 700g/24.7oz (without batteries and card)
SD15 Accessories Li-Ion Battery Pack BP-21, Battery charge BC-21, USB Cable, Video Cable, Neck Strap, Eye Cap, Body Cap, Eyepiece Cap, SIGMA Photo Pro Disc, SD1 Instruction Manual
* Product external appearance, specification, etc. may change without notice to allow for improvements.

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