• APS-C 369.0mm2
  • 14.8 megapixels
  • ISO 100 - 6400
  • APS-C 332.3mm2
  • 18.0 megapixels
  • ISO 100 - 12,800
  • Detailed specifications
  • Sigma SD1 Merrill
  • Canon EOS Rebel T4i (EOS 650D)
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Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Canon T3i
T3i vs T4i
Successor:   Canon T5i
T4i vs T5i
General
Model Number: SD1 Merrill T4i
Alternate Model Number(s): SD1 EOS 650D, Kiss X6i
Camera Format: Pro SLR SLR
Currently Manufactured: Yes No
Retail Price: $2299.00 $1199.00
Street Price: $8,492.13 $689.98
Date Available: 2011-06-01 2012-06-30
Tripod Mount: Yes Yes
Weight: 28.1 oz (796 g)
includes batteries
36.6 oz (1,039 g)
includes batteries, kit lens
Size: 5.7 x 4.5 x 3.1 in.
(146 x 114 x 80 mm)
5.2 x 3.9 x 3.1 in.
(133 x 100 x 79 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Foveon X3 Canon
Effective Megapixels: 14.8 18.0
Sensor Format: APS-C APS-C
Sensor size: 368.95mm2 (23.50mm x 15.70mm) 332.27mm2 (22.30mm x 14.90mm)
Approximate Pixel Pitch: 5.00 microns 4.30 microns
Focal Length Multiplier: 1.5x 1.6x
Aspect Ratio: 3:2 3:2
Color Filter Type: Full Color RGBG
Anti Aliasing Filter: Not needed Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: No No
On-Sensor Phase Detect: No Yes
DxO Sensor Score:   62
DxO Color Depth Score (bits):   21.7
DxO Dynamic Range Score (evs):   11.2
DxO Maximum Effective ISO Score (iso):   722
Image Capture
Image Resolution: 4704 x 3136 (14.8 MP, 3:2),
3264 x 2176 (7.1 MP, 3:2),
2336 x 1568 (3.7 MP, Other)
5184 x 3456 (17.9 MP, 3:2),
4608 x 3456 (15.9 MP, 4:3),
5184 x 2912 (15.1 MP, 16:9),
3456 x 3456 (11.9 MP, 1:1),
3456 x 2304 (8.0 MP, 3:2),
3072 x 2304 (7.1 MP, 4:3),
3456 x 1944 (6.7 MP, 16:9),
2304 x 2304 (5.3 MP, 1:1),
2592 x 1728 (4.5 MP, 3:2),
2034 x 1728 (3.5 MP, Other),
2592 x 1456 (3.8 MP, 16:9),
1728 x 1728 (3.0 MP, 1:1),
1920 x 1280 (2.5 MP, 3:2),
1696 x 1280 (2.2 MP, 4:3),
1920 x 1080 (2.1 MP, 16:9),
1280 x 1280 (1.6 MP, 1:1),
720 x 480 (0.3 MP, 3:2),
640 x 480 (0.3 MP, 4:3),
720 x 400 (0.3 MP, Other),
480 x 480 (0.2 MP, 1:1)
Image File Format: JPEG, RAW (.X3F), RAW + JPEG JPEG, .CR2 RAW (14-bit), RAW+L/F JPEG
Continuous-mode frames/second: 4.1 4.8
Video Capture
Can take movies: No Yes
Movie Resolution: 1920x1080 (30/​25/​24)
1280x720 (60/​50)
640x480 (30/​25)
Movie File Format:   MPEG-4 AVC/H.264 video with stereo linear PCM audio in MOV container
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder: No
HD Video Out: No Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: Sigma SA bayonet Canon EF/EF-S
Lens: Sigma 17-50mm f/2.8 EX DC OS HSM Canon EF-S 18-135mm f/3.5-5.6 IS STM
Focal Length (35mm equivalent): 26 - 75mm 29 - 216mm
Focal Length (actual): 17 - 50mm 18 - 135mm
Zoom Ratio: 2.90x 7.50x
Aperture Range: f/2.8 - f/22 (W/T) f/3.5 - 22 (wide) / f/5.6 - 38 (tele)
Integrated ND Filter: No No
Normal Focus Range: 28 cm to Infinity
11.0 in to Infinity
39 cm to Infinity
15.4 in to Infinity
Macro Focus Range:    
Filter Thread: 77.0mm 67.0mm
Thread Type: n/a n/a
Optical Image Stabilization: Yes Yes
Digital Zoom: No No
Digital Zoom Values: n/a n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Phase-detection with 11-point Twin Cross AF Sensor; Single AF, Continuous AF (with AF motion prediction function), Manual OVF: Phase-detect using 9 cross-type AF points with 1 high precision f/2.8 center point; Live View uses new hybrid phase-detect/contrast-detect AF on image sensor
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD (playback only) Optical / LCD
Viewfinder Type: SLR type; Pentaprism, 98% coverage, 0.95x magnification, 18mm eyepoint, -3 to +1.5 diopter SLR type; fixed eye-level pentamirror, 95% coverage, 0.85x mag., 19mm eyepoint, -3 to +1 diopter
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.63x 0.53x
Viewfinder Magnification (nominal/claimed): 0.95x 0.85x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 460,000 dots 1,040,000 dots (345,600 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom:   10.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 6400 12800
Minimum ISO (native): 100 100
ISO Settings: 100, 200, 400, 800, 1600, 3200, 6400 Auto(100-6400), 100-12800 in 1EV steps, expandable to H=25600
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Overcast, Incandescent, Fluorescent, Flash and Custom Auto, Daylight, Shade, Cloudy, Tungsten, White Fluorescent, Flash, Custom
Shutter Speed Range: 1/8000 - 30 sec 1/4000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 77-segment Evaluative, Center-Weighted Average, Center Area, Spot Metering; EV 1 to 20 (50mm F1.4 : ISO100) 63-zone Evaluative (linked to any AF point), Center-weighted, Partial (9%), Spot (4%)
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes:   Scene Intelligent Auto, Flash Off, Creative Auto, Portrait, Landscape, Close-up, Sports, Night Portrait, Handheld Night Scene, HDR Backlight Control, Multi-Shot Noise Reduction, Video Snapshot
Self Timer: 2 or 10 seconds 10, 2, Remote, 10s Continuous (2-10) seconds
Time Lapse (intervalometer):   No
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: S-TTL (17mm lens angle covered) E-TTL II: Auto, Manual flash, Integrated Speedlite Transmitter; Red-Eye Reduction; Second Curtain Synchro
Flash Guide Number (ISO 100): 11.0 m / 36.1 ft. 13.0 m / 42.7 ft.
Flash Range Description: Lens aperture dependent. Lens aperture dependent
Max Flash Sync: 1/180 1/200
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps +/- 2.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe, PC Sync socket Hot Shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: CF1 SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (.X3F), RAW + JPEG .CR2 RAW (14-bit), RAW+L/F JPEG
Movie File Format:   MPEG-4 AVC/H.264 video with stereo linear PCM audio in MOV container
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: No Yes
DPOF Compliant: No Yes
Remote Control: Yes Yes
Remote Control Type: Optional RS-31 IR Wireless, CR-21 Wired Optional Wired (RS-60E3) or Wireless (RC-6 , RC-5, RC-1)
Connections (extended): Wired Remote, DC Input jacks Mini (Type-C) HDMI-CEC, External 3.5mm Stereo Mic Jack, Wired Remote Jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.78 0.37
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.78 0.34
Buffer size for RAW shooting in single shot mode (frames): 7 9
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.37
Camera penalizes early shutter press? Yes No
JPEG shooting speed in burst mode (fps, max resolution): 4.1 4.8
Buffer size for JPEG shooting in burst mode (frames, max resolution): 7 19
RAW shooting speed in burst mode (fps):   5.1
Buffer size for RAW shooting in burst mode (frames):   6
RAW+JPEG shooting speed in burst mode (fps):   5.6
Buffer Size for RAW+JPEG shooting in burst mode (frames):   3
Shutter lag (full AF, wide/mid): 0.38 seconds 0.27 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):   0.83 seconds
Shutter lag (prefocused, live view - DSLR):   0.062 seconds
Shutter Lag (manual focus): 0.244 seconds 0.094 seconds
Shutter lag (full AF, with flash): 0.52 seconds 0.28 seconds
Shutter Lag (prefocused): 0.088 seconds 0.074 seconds
Shutter Lag (notes): Full Autofocus Lag: Auto Area AF = 0.466s OVF: Auto Selection AF lag: 0.122s Live View: Quick AF: 1.070s Hybrid AF Single Area: 0.833s Hybrid AF Auto Selection: 1.419s Prefocused: 0.062s
Startup Time: 4.5 seconds 0.7 seconds
Play -> Record Time: 0.5 seconds 0.3 seconds
Flash cycle time, full power:   3.3 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   180 shots
Battery Life, Still (CIPA Rating OVF/EVF):   440 shots
Battery Life, Video:    
Battery Form Factor: Proprietary BP-21 Proprietary LP-E8
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeble
Batteries Included: 1 x Proprietary BP-21 Lithium-ion rechargeable 1 x Proprietary LP-E8 Lithium-ion rechargeble
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software: Sigma Photo Pro 5.0 EOS Digital Solutions Disc (ImageBrowser EX, Digital Photo Professional, PhotoStitch, EOS Utility (inc. Remote Capture), Picture Style Editor)
OS Compatibility:   Windows XP inc SP3 / Vista inc SP1 and SP2 (excl. Starter Edition) / 7 (excl. Starter Edition) OS X v10.6-10.7 (Intel processor required)
Miscellaneous
Notes & Features: 46-megapixel 23.5 x 15.7mm APS-C full-color sensor, weather-resistant magnesium alloy body, dual "TRUE II" image processing engines, 11-point Twin Cross AF sensor, CompactFlash Type 1 with UDMA support. DIGIC 5 processor, 3-inch Vari-angle capacitive touchscreen LCD, new Hybrid CMOS AF system allows continuous AF and touch focus in Live View/Movie mode, 5 fps burst mode, 100-12800 ISO expandable to 25600, Auto Lighting Optimizer, Highlight Tone Priority, vignetting correction, distortion correction, chromatic aberration correction, Handheld Night Scene, HDR Backlight Control, Multi-Shot Noise Reduction, Full HD video, built-in stereo mic, UHS-I compatible.