• 1/1.7 inch 43.3mm2
  • 12.0 megapixels
  • 37.00mm - 111.00mm (35mm eq.)
  • APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 32,000
  • Detailed specifications
  • Pentax Optio A40
  • Sony Alpha ILCE-A6400
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Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Sony A6300
A6300 vs A6400
Successor:    
General
Model Number: A40 A6400
Alternate Model Number(s):   ILCE-6400
Camera Format: Ultra Compact Compact System Camera
Currently Manufactured: No Yes
Retail Price: $299.95 $999.99
Street Price:   $798.00
Date Available: 2008-02-15 2019-02-15
Tripod Mount: Yes Yes
Weight: 5.3 oz (150 g)
includes batteries
18.3 oz (519 g)
includes batteries, kit lens
Size: 3.6 x 2.2 x 0.9 in.
(91 x 56 x 23 mm)
4.7 x 2.6 x 2.4 in.
(120 x 67 x 60 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 12.0 24.2
Sensor Format: 1/1.7 inch APS-C
Sensor size: 43.32mm2 (7.6mm x 5.7mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 1.90 microns 3.92 microns
Focal Length Multiplier: n/a 1.5x
Aspect Ratio: 4:3 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter:   Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 4000 x 3000 (12.0 MP, 4:3),
3648 x 2736 (10.0 MP, 4:3),
3072 x 2304 (7.1 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
2048 x 1536 (3.1 MP, 4:3),
1024 x 768 (0.8 MP, 4:3),
640 x 480 (0.3 MP, 4:3)
6000 x 4000 (24.0 MP, 3:2),
4240 x 2832 (12.0 MP, 3:2),
3008 x 2000 (6.0 MP, 3:2),
6000 x 3376 (20.3 MP, 16:9),
4240 x 2400 (10.2 MP, Other),
3008 x 1688 (5.1 MP, 16:9),
4000 x 4000 (16.0 MP, 1:1),
2832 x 2832 (8.0 MP, 1:1),
2000 x 2000 (4.0 MP, 1:1),
12416 x 1586 (19.7 MP, Other),
8192 x 1856 (15.2 MP, Other),
5536 x 2160 (12.0 MP, Other),
3872 x 2160 (8.4 MP, Other)
Image File Format: JPEG (EXIF 2.2) JPEG (EXIF 2.31), RAW (14-bit compressed ARW 2.3), RAW+JPEG
Continuous-mode frames/second: n/a 11.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30)
320x240 (30)
3840x2160 (30p/​25p/​24p)
1920x1080 (120p/​100p/​60p/​60i/​50p/​50i/​30p/​25p/​24p)
1920x1080 (15p/​12p/​8p/​6p/​4p/​3p/​2p/​1/​p)
Movie File Format: AVI (DivX MPEG-4) XAVC S / AVCHD format Ver. 2.0 compliant; Audio: LPCM, 2ch / Dolby Digital (AC-3), 2ch, Dolby Digital Stereo Creator
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: n/a
HD Video Out: Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a Sony E
Lens: SMC Pentax Zoom (7 elements in 5 groups, 3 aspherical) Sony SELP1650 PZ 16-50mm f/3.5-5.6 OSS; 9 elements in 8 groups, 4 aspheric surfaces
Focal Length (35mm equivalent): 37 - 111mm 24 - 75mm
Focal Length (actual): 7.9 - 23.7mm 16 - 50mm
Zoom Ratio: 3.00x 3.13x
Aperture Range: f/2.8 (wide) - f/5.4 (tele) - ??? f/3.5 - f/22 (W) / f/5.6 - f/36 (T); 7-blade circular aperture
Integrated ND Filter: No No
Normal Focus Range: 35 cm to Infinity
13.8 in to Infinity
25 cm to Infinity
9.8 in to Infinity
Macro Focus Range: 6 - 40 cm
2.4 - 15.7 in
 
Filter Thread: n/a 40.5mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 6x Up to 4x; up to 2x Clear Image Digital Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 5 point Contrast Detect AF; spot, tracking, and face recognition Hybrid Contrast/Phase Detection: Wide (425 points (phase-detection AF), 425 points (contrast-detection AF)) / Zone / Center / Flexible Spot (S/M/L) / Expanded Flexible Spot / Tracking ( Wide / Zone / Center / Flexible Spot (S/M/L) / Expanded Flexible Spot); Enhanced real-time Eye AF and object tracking
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: LCD EVF / LCD
Viewfinder Type:   EVF type; 1.0cm (0.39-inch) 2.3M-dot XGA OLED, 100% coverage, 1.07x mag. (0.70x 35mm eq.), 23mm eyepoint, -4 to +3 diopter
Focus Peaking: No Yes
EVF Resolution: n/a 2,359,296 dots
Viewfinder Magnification (35mm equivalent):   0.70x
Viewfinder Magnification (nominal/claimed):   1.07x
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.5 3.0
Rear Display Resolution: 232,000 dots 921,600 dots (307,200 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No Yes
Max Playback Zoom: 8.0x 16.7x
Top Deck Display: No
Exposure
Maximum ISO (native):   32000
Minimum ISO (native):   100
ISO Settings: Auto, 50, 100, 200, 400, 800, 1600, 3200 (auto up to 3200 in Digital SR mode) Auto, 100-32000; expandable to 102400
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Tungsten, Fluorescent, Manual 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, Underwater; AWB micro adjustment
Shutter Speed Range: 1/2000 - 4 sec 1/4000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: TTL metering: Multi-segment, Center-weighted, Spot 1200-zone Evaluative, Center-weighted, Spot, Spot Standard/Large, Entire-screen Average, Highlight
Program Auto Exposure: Yes Yes
Aperture Priority: No Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Natural Skin Tone, Half-length Portrait (3MP), Night Scene, Landscape, Flower, Portrait, Kids, Digital SR (5MP), Surf & Snow, Sport, Pet, Text, Food, Frame Composite (3MP), Dynamic Range Adjustment Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night Scene, Hand-held Twilight, Anti Motion Blur, HDR, Sweep Panorama, Movie/Slow & Quick Motion
Self Timer: 2 or 10 seconds 2 , 10, 10 (3 or 5 frames) seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: On, Off, Auto, Redeye, Soft Flash Auto, Off, Fill-flash, Rear sync, Slow sync, Red-eye reduction: On/Off
Flash Guide Number (ISO 100): n/a 6.0 m / 19.7 ft.
Flash Range Description: Auto ISO: Wide: 0.20 - 23 ft (0.06 – 7.1 m); Tele: Approx. 1.15 – 11 ft (0.35 – 3.5 m) Lens dependent
Max Flash Sync:   1/160
Flash Exposure Compensation:   +/- 3.0 EV in 0.3EV steps
External Flash Connection: n/a Multi Interface Shoe
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: SD / SDHC MS PRO Duo / SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No Yes
Uncompressed Format:   RAW (14-bit compressed ARW 2.3), RAW+JPEG
Movie File Format: AVI (DivX MPEG-4) XAVC S / AVCHD format Ver. 2.0 compliant; Audio: LPCM, 2ch / Dolby Digital (AC-3), 2ch, Dolby Digital Stereo Creator
Included Memory: 21.0 MB No memory included
Included Memory Type: Internal  
Connectivity
Built-In Wi-Fi: No Yes
NFC: No Yes
Bluetooth: No Yes
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,Bluetooth,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: IR, optional Optional wired or Wi-FI
Connections (extended): DC input Micro (Type-D) HDMI, Multi Interface Shoe, Multi Micro USB
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.41
Cycle time for RAW shooting in single shot mode (seconds per frame):    
Buffer size for RAW shooting in single shot mode (frames):    
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.42
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution):   11.0
Buffer size for JPEG shooting in burst mode (frames, max resolution):   87
RAW shooting speed in burst mode (fps):   11.1
Buffer size for RAW shooting in burst mode (frames):   42
RAW+JPEG shooting speed in burst mode (fps):   11.1
Buffer Size for RAW+JPEG shooting in burst mode (frames):   42
Shutter lag (full AF, wide/mid):   0.12 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.111 seconds
Shutter lag (full AF, with flash):   0.17 seconds
Shutter Lag (prefocused):   0.021 seconds
Shutter Lag (notes):    
Startup Time:   1.8 seconds
Play -> Record Time:   1.0 seconds
Flash cycle time, full power:   2.3 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 240 shots 410 shots
Battery Life, Still (CIPA Rating OVF/EVF):   360 shots
Battery Life, Video:   125 minutes
Battery Form Factor: Proprietary D-LI68 Proprietary NP-FW50
Usable Battery Types: Lithium Ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI68 Lithium Ion rechargeable 1 x Proprietary NP-FW50 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: No
Internal Charging Supported: Yes
Software
Included Software: Software (S-SW69) CD-ROM Free downloads of "Remote", "Viewer" and "Edit" apps
OS Compatibility: Windows, Mac OS  
Miscellaneous
Notes & Features: