• 35mm 855.6mm2
  • 24.3 megapixels
  • ISO 100 - 25,600
  • APS-C 332.3mm2
  • 24.2 megapixels
  • 24.00mm - 72.00mm (35mm eq.)
  • Detailed specifications
  • Sony Alpha SLT-A99
  • Canon PowerShot G1 X Mark III
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Canon G1X Mark II
G1X Mark II vs G1X Mark III
Successor: Sony A99 II
A99 vs A99 II
 
General
Model Number: A99 G1X Mark III
Alternate Model Number(s): SLT-A99V G1X III
Camera Format: SLR Compact
Currently Manufactured: No Yes
Retail Price: $2799.99 $1299.00
Street Price: $1,998.00 $999.00
Date Available: 2012-10-15 2017-11-30
Tripod Mount: Yes Yes
Weight: 29.2 oz (828 g)
includes batteries
14.1 oz (399 g)
includes batteries
Size: 5.8 x 4.4 x 3.1 in.
(147 x 111 x 78 mm)
4.5 x 3.1 x 2.0 in.
(115 x 78 x 51 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Canon
Effective Megapixels: 24.3 24.2
Sensor Format: 35mm APS-C
Sensor size: 855.62mm2 (35.80mm x 23.90mm) 332.27mm2 (22.30mm x 14.90mm)
Approximate Pixel Pitch: 5.97 microns 3.72 microns
Focal Length Multiplier: 1.0x 1.6x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 89  
DxO Color Depth Score (bits): 25.0  
DxO Dynamic Range Score (evs): 14.0  
DxO Maximum Effective ISO Score (iso): 1,555  
Image Capture
Image Resolution: 6000 x 4000 (24.0 MP, 3:2),
6000 x 3376 (20.3 MP, 16:9),
3936 x 2624 (10.3 MP, 3:2),
3936 x 2216 (8.7 MP, 16:9),
2640 x 1760 (4.6 MP, 3:2),
2640 x 1488 (3.9 MP, Other),
1728 x 1152 (2.0 MP, 3:2),
1728 x 976 (1.7 MP, Other),
12416 x 1856 (23.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
2160 x 5536 (12.0 MP, Other),
2160 x 3872 (8.4 MP, Other)
6000 x 4000 (24.0 MP, 3:2),
3984 x 2656 (10.6 MP, 3:2),
2976 x 1984 (5.9 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2),
6000 x 3368 (20.2 MP, 16:9),
3984 x 2240 (8.9 MP, 16:9),
2976 x 1824 (5.4 MP, Other),
2400 x 1344 (3.2 MP, Other),
5328 x 4000 (21.3 MP, 4:3),
3552 x 2664 (9.5 MP, 4:3),
2656 x 1992 (5.3 MP, 4:3),
2112 x 1600 (3.4 MP, Other),
4000 x 4000 (16.0 MP, 1:1),
2656 x 2656 (7.1 MP, 1:1),
1984 x 1984 (3.9 MP, 1:1),
1600 x 1600 (2.6 MP, 1:1),
24064 x 2800 (67.4 MP, Other),
6000 x 2800 (16.8 MP, Other),
16000 x 4200 (67.2 MP, Other),
4200 x 4000 (16.8 MP, Other)
Image File Format: JPEG (EXIF 2.3), 14-bit RAW (ARW 2.3), RAW+JPEG JPEG (EXIF 2.3), .CR2 14-bit RAW, RAW+JPEG
Continuous-mode frames/second: 5.9 9.3
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60p/​28Mbps/​PS or 60i/​24Mbps/​FX or 60i/​17Mbps/​FH or 24p/​24Mbps/​FX or 24p/​17Mbps/​FH)
1440x1080 (30p/​12Mbps)
640x480 (30p/​3Mbps)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1280x720 (30p/​25p)
640x480 (30p/​25p)
Movie File Format: AVCHD 2.0 / MP4; Audio :Dolby Digital (AC-3) / MPEG-4 AAC-LC MP4 (Video: MPEG-4 AVC / H.264; Audio: MPEG-4 AAC-LC (stereo))
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sony Alpha (Minolta A) n/a
Lens: n/a Canon Zoom Lens; 9 elements in 8 groups with 3 double-sided aspherical elements and 1 single-sided aspherical element
Focal Length (35mm equivalent):   24 - 72mm
Focal Length (actual):   15 - 45mm
Zoom Ratio:   3.00x
Aperture Range:   f/2.8 (W) / f/5.6 (T) - f/16 with 9-blade Circular Diaphragm; ND Filter (3-stop): On / Auto / Off
Integrated ND Filter: No Yes
Normal Focus Range:   10 cm to Infinity
3.9 in to Infinity
Macro Focus Range:   10 - 50 cm
3.9 - 19.7 in
Filter Thread: n/a 37.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: Yes Yes
Digital Zoom Values: 1.4x / 2x 4x (with Digital Tele-Converter Approx. 1.6x or 2.0x), ZoomPlus 6x (total)
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Dual Phase-detection: 19 points (11 points cross type) CCD line sensors, 102 assist points focal plane phase-detection sensors; Wide (auto, 19 points), Zone, Spot, Local selectable Hybrid PDAF/CDAF: Dual Pixel CMOS AF; Maximum 49 AF points (Fixed location on 7x7 grid) via camera automatic selection; Freely position 1 AF point / 1 AF Zone (9 points, 3x3 grid) via manual selection; Touch AF
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD EVF / LCD
Viewfinder Type: EVF type; 1.3cm (0.5-inch) 2,359K-dot XGA OLED, ~100% coverage, 0.71x magnification, 22mm eyepoint at -1 diopter (CIPA standard), -4 to +3 diopter, eye sensor. 0.39"-type 2.36m-dot OLED EVF, 100% coverage, 22mm eyepoint, -3 to +1 diopter correction, eye sensor
Focus Peaking: Yes Yes
EVF Resolution: 2,359,000 dots 2,360,000 dots (786,666 pixels)
Viewfinder Magnification (35mm equivalent): 0.71x  
Viewfinder Magnification (nominal/claimed): 0.71x  
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 1,228,800 dots (307,200 px) 1,040,000 dots
Touchscreen: No Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: Yes Yes
Selfie Screen: Yes Yes
Max Playback Zoom: 16.7x 10.0x
Top Deck Display: Yes No
Exposure
Maximum ISO (native): 25600 25600
Minimum ISO (native): 100 100
ISO Settings: Auto (100-6400 with selectable limits), 100-25600 in 1/3 EV steps, extendable down to ISO 50; Multi-frame NR up to ISO 51200 Auto, 100 - 25600 in 1/3 or 1EV steps
Auto ISO Mode: Yes Yes
White Balance Settings: Auto WB, Daylight, Shade, Cloudy, Incandescent, Fluorescent (Warm white/Cool white/Day white/Daylight), Flash, C. Temp 2500 to 9900K, C Filter G7 to M7 (15-step), Custom, AWB micro adjustment Auto, Daylight, Shade, Cloudy, Tungsten, White Fluorescent, Flash, Underwater, Color Temperature, Custom
Shutter Speed Range: 1/8000 - 30 sec 1/2000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: 1200-zone Evaluative, Center-weighted, Spot Evaluative, Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night Scene, Hand-held Twilight, Sweep Panorama, Telezoom Continuous Priority AE Smart Auto (58 scenes detected), Hybrid Auto, Custom 1, Custom 2, SCN (Self-Portrait, Portrait, Smooth Skin, Panoramic Shot, Panning, Star (Star Nightscape, Star Trails, Star Time-Lapse Movie), Handheld Night Scene, Grainy B/W, Soft Focus, Art Bold effect, Water painting effect, Toy camera effect, Miniature effect, HDR, Underwater, Fireworks), Movie (Standard, Short Clip, Manual, Time-lapse Movie)
Self Timer: 2, 10; 3 or 5 frames after 10s seconds 10, 2 or custom seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: No Yes
Flash Modes: Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off Auto, Manual Flash On / Off, Slow Synchro; FE Lock, Red-eye Reduction, Second Curtain Synchro; E-TTL with EX series Speedlites
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a 1.6 ft. (50cm) - 29.5 ft. (9.0m) (W), 1.6 ft. (50cm) - 14.8 ft. (4.5m) (T)
Max Flash Sync: 1/250 1/2000
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps +/- 2.0 EV in 0.3EV steps
External Flash Connection: Multi Interface Shoe, PC-Sync terminal Hot Shoe
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: MS Duo / MS PRO Duo / SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-I UHS-I
Other Memory:    
Dual Card Slots: Yes No
RAW Capture Support: Yes Yes
Uncompressed Format: 14-bit RAW (ARW 2.3), RAW+JPEG .CR2 14-bit RAW, RAW+JPEG
Movie File Format: AVCHD 2.0 / MP4; Audio :Dolby Digital (AC-3) / MPEG-4 AAC-LC MP4 (Video: MPEG-4 AVC / H.264; Audio: MPEG-4 AAC-LC (stereo))
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No Yes
Bluetooth: No Yes
Built-In GPS: Yes No
Microphone Jack: Yes No
Headphone Jack: Yes No
External Connections: USB 2.0 High Speed USB 2.0 High Speed,Bluetooth,WiFi
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wireless or Wired Wi-Fi/Bluetooth or optional wired
Connections (extended): Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV H); Wired Remote Terminal, External Stereo Micophone Jack, External Stereo Headphone Jack, DC Input, Vertical Grip connector, Sync Terminal, Multi Interface Shoe, Built-in GPS Micro-B USB, Micro (Type-D) HDMI, Wired Remote Switch
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.50 0.43
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.56  
Buffer size for RAW shooting in single shot mode (frames): Unlimited  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): 0.58 0.41
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 5.9 9.3
Buffer size for JPEG shooting in burst mode (frames, max resolution): 17 23
RAW shooting speed in burst mode (fps): 5.9 9.4
Buffer size for RAW shooting in burst mode (frames): 18 16
RAW+JPEG shooting speed in burst mode (fps): 5.9 9.4
Buffer Size for RAW+JPEG shooting in burst mode (frames): 13 16
Shutter lag (full AF, wide/mid): 0.13 seconds 0.12 seconds
Shutter lag (full AF, tele):   0.12 seconds
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.081 seconds 0.100 seconds
Shutter lag (full AF, with flash):   0.40 seconds
Shutter Lag (prefocused): 0.055 seconds 0.033 seconds
Shutter Lag (notes): Full AF lag, Wide-area AF mode = 0.125s Prefocused shutter lag with Electronic First Curtain Off = 0.108s  
Startup Time: 0.7 seconds 2.1 seconds
Play -> Record Time: 1.1 seconds 1.4 seconds
Flash cycle time, full power:   3.8 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 500 shots 200 shots
Battery Life, Still (CIPA Rating OVF/EVF): 410 shots 200 shots
Battery Life, Video:   85 minutes
Battery Form Factor: Proprietary NP-FM500H Proprietary
Usable Battery Types: Lithium-ion rechargeable NB-13L Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FM500H Lithium-ion rechargeable 1 x Proprietary NB-13L Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: No Yes
Software
Included Software: Software CD-ROM (includes Picture Motion Browser, Image Data Converter 4, Remote Camera Control 3) No disc is included; Canon software can be downloaded from their website.
OS Compatibility: Windows XP SP3/Vista SP2/7, Mac OS X (v.10.5 +); PMB is Windows only  
Miscellaneous
Notes & Features: 24.3MP full-frame image sensor, SteadyShot INSIDE image stabilization, dual phase-detect AF, 200K shutter, AVCHD 2.0 video, hi-res OLED EVF, articulating 1.3M-dot LCD, 6 fps bursts at full resolution, up to 10 fps Tele-zoom mode, two card slots (SD/MS, SD), real-time Full HD video out via HDMI, built-in GPS.