Sigma sd Quattro Mirrorless Digital Camera

Model #C40900

Sigma Warranty - USA Version
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Viewfinder Pixel Count 2,360,000
Viewfinder Coverage 100%
Viewfinder Size Not Specified By Manufacturer
Viewfinder Eye Point 21.00 mm
Viewfinder Type Electronic
Viewfinder Magnification Approx. 1.09x
Diopter Adjustment - 4 to +2 m
Display Screen 3" Rear Screen LCD (1,620,000)
Screen Coverage 100%


AC Power Adapter SAC-7 (Optional)
Operating/Storage Temperature Operating32 to 104°F (0 to 40°C)
Battery 1x BP-61 Rechargeable Lithium-ion Battery Pack


Dimensions (WxHxD) 5.8 x 3.7 x 3.6" / 147.0 x 95.1 x 90.8 mm
Weight 22.05 oz / 625 g without battery and card


Connectivity HDMI C (Mini), Micro-USB, Wired Remote Port
Internal Memory None


File Formats Still Images: JPEG, RAW
Lens Mount Sigma SA
Camera Format APS-C (1.5x Crop Factor)
Pixels Actual: 33 MegapixelEffective: 29 Megapixel
Max Resolution 19.6 MP: 5424 x 3616
Aspect Ratio 3:2
Sensor Type / Size CMOS, 23.5 x 15.5 mm
Bit Depth 14-bit
Memory Card Type SDSDHCSDXC
Image Stabilization None

Focus Control

Autofocus Points Phase Detection:9
Focus Mode Automatic (A), Continuous-servo AF (C), Single-servo AF (S)
Focus Type Auto & Manual


External Flash Connection Hot Shoe, PC Terminal
Dedicated Flash System TTL
Built-in Flash No
Max Sync Speed 1 / 180 seconds

Exposure Control

Metering Method Center-weighted average metering, Evaluative metering, Spot metering
Exposure Modes Modes: Aperture Priority, Manual, Program, Shutter PriorityMetering Range: EV 0.0 - EV 17.0Compensation: -5 EV to +5 EV (in 1/3 EV steps)
White Balance Modes Auto, Color Temperature, Custom, Daylight, Flash, Fluorescent, Incandescent, Overcast, Shade
Continuous Shooting Up to 3.6 fps at 19.6 MP for up to 14 frames in raw formatUp to 5.1 fps at 4.9 MP for up to 28 frames in raw format
Remote Control CR-31 Cable Release Switch (Optional)
Shutter Type: Electronic & MechanicalSpeed: 1/4000 - 30 second, Bulb Mode
ISO Sensitivity Auto, 100-6400

AV Recording

Video Recording No
Expert Reviews
Amateur photographer.32822919
1 week ago

Foveon X3 Quattro APS-C sensor ISO 100-6,400 2.36-million-dot EVF £799 body only £999 with 30mm f/1.4 lens Sigma is best known as a leading third-party lens producer, but it also has a long history of selling cameras.

  • +

    Excellent image quality at low ISO, Clear and easy-to-use interface, Good level of customisability

  • -

    Poor high ISO performance, Slow autofocus, Low-resolution viewfinder feed

16 September 2016

Once again, Sigma has produces an interesting camera for fans of Foveon sensors (as we are), this time addressing the criticisms we raised when reviewing the two fixed-lens dp Quattro cameras. The dp3 Quattro won't suit everyday snapshooters and may not be ideal for some photo enthusiasts.

Photography blog.34420874
15 September 2016

The new Sigma sd Quattro mirrorless camera continues the three core Sigma camera traditions, namely superb image quality, idiosyncratic user interface, and slow performance. Once again, if you prefer a more leisurely approach to taking pictures, the sd Quattro will reward you with some amazing...

User Reviews
Dp review.33575663
5 August 2016

I keep it short: So far the best Sigma camera. The SD1 Merrill was a big step in terms of quality camera body for Sigma, the SD Quattro improves on this and brings us into the mirrorless era. An to be honest: It's fun to use: Mirrorless rocks!

Product Highlights
  • 29MP APS-C Foveon X3 Quattro CMOS Sensor
  • Dual TRUE III Imaging Processing Engine
  • Sigma SA Lens Mount
  • 2.36m-Dot Electronic Viewfinder
  • 3.0" 1.62m-Dot Main LCD & Sub Monitor
  • Phase & Contrast-Detect Hybrid AF System
  • Super-Fine Detail Exposure Mode
  • ISO 6400 and 3.6 fps Continuous Shooting
  • Quick Set Button; Lock Switch
  • Focus Peaking; Lossless Compressed Raw
Average Expert Score
Average User Score
In The Box
  • Sigma sd Quattro Mirrorless Digital Camera
  • BP-61 Rechargeable Li-Ion Battery Pack
  • BC-61 Battery Charger with AC Cable
  • USB Cable
  • Strap
  • Body Cap
  • Limited 1-Year Warranty
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