Pentax K-3 vs Olympus E-M1X Specifications

APS-C 366.6mm²
24.4 megapixels
ISO 100 - 51,200

Go in depth with our full Pentax K-3 Review.
How does it shoot? Pentax K-3 in the real world.
See real-world photos taken with the K-3.
Compare Pentax K-3 image quality against competitors.
What’s the bottom line? Read our Pentax K-3 conclusion.

4/3 226.2mm²
20.4 megapixels
ISO 200 - 25,600

Go in depth with our full Olympus E-M1X Review.
How does it shoot? Olympus E-M1X in the real world.
See real-world photos taken with the E-M1X.
Compare Olympus E-M1X image quality against competitors.
What’s the bottom line? Read our Olympus E-M1X conclusion.

Detailed specifications
Pentax K-3
Olympus OM-D E-M1X

Links
Prices:	Compare Prices	Compare Prices
Manufacturer URL:	Manufacturer website	Manufacturer website
Predecessor:
Successor:	Pentax K-3 II K-3 vs K-3 II
General
Model Number:	K-3	E-M1X
Alternate Model Number(s):
Camera Format:	Pro SLR	Compact System Camera
Currently Manufactured:	No	Yes
Retail Price:	$1149.95	$2999.99
Street Price:	$699.00	$2,349.50
Date Available:	2013-11-01	2019-02-28
Tripod Mount:	Yes	Yes
Weight:	43.7 oz (1,240 g) includes batteries, kit lens	35.2 oz (997 g) includes batteries
Size:	5.2 x 3.9 x 3.1 in. (132 x 100 x 77 mm)	5.7 x 5.8 x 3.0 in. (144 x 147 x 75 mm)
Waterproof:	No	No
Waterproof Depth:	n/a	n/a

Image Sensor
Sensor Type:	CMOS	Live MOS
Sensor Manufacturer:
Effective Megapixels:	24.4	20.4
Sensor Format:	APS-C	4/3
Sensor size:	366.6mm² (23.50mm x 15.60mm)	226.2mm² (17.40mm x 13.00mm)
Approximate Pixel Pitch:	3.91 microns	3.36 microns
Focal Length Multiplier:	1.5x	2.0x
Aspect Ratio:	3:2	4:3
Color Filter Type:	RGBG	RGBG
Anti Aliasing Filter:	Optional	None
Self-Cleaning:	Yes	Yes
Sensor shift image stabilization:	Yes	Yes
On-Sensor Phase Detect:	No	Yes
DxO Sensor Score:	80
DxO Color Depth Score (bits):	23.7
DxO Dynamic Range Score (evs):	13.4
DxO Maximum Effective ISO Score (iso):	1,216
Image Capture
Image Resolution:	6016 x 4000 (24.1 MP, 3:2), 4608 x 3072 (14.2 MP, 3:2), 3072 x 2048 (6.3 MP, 3:2), 1920 x 1280 (2.5 MP, 3:2)	5184 x 3888 (20.2 MP, 4:3), 3712 x 2784 (10.3 MP, 4:3), 2624 x 1968 (5.2 MP, 4:3), 1824 x 1368 (2.5 MP, 4:3), 1024 x 768 (0.8 MP, 4:3)
Image File Format:	JPEG (EXIF 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG	JPEG (Exif 2.31), 12-bit lossless compressed RAW (.ORF), RAW + JPEG
Continuous-mode frames/second:	7.1	60.7
Video Capture
Can take movies:	Yes	Yes
Movie Resolution:	1920x1080 (60i/50i/30p/25p/24p) 1280x720 (60p/50p/30p/25p/24p)	4096x2160 (24p) 3840x2160 (30p/25p/24p) 1920x1080 (60p/50p/30p/25p/24p) 1280x720 (60p/50p/30p/25p/24p) 4096x2160 (15p/12p/8p/6p/3p) 3840x2160 (25p/24p/15p/12p/8p/6p/3p) 1920x1080 (120p/60p/50p/25p/24p/15p/12p/8p/6p/3p) 1280x720 (120p/60p/50p/25p/24p/15p/12p/8p/6p/3p)
Movie File Format:	MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record	MOV (MPEG-4 AVC/H.264 with stereo sound), AVI (Motion JPEG)
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:	Pentax K (KA/KAF/KAF2/3)	Micro Four Thirds
Lens:	smc Pentax 18-135mm f/3.5-5.6 ED AL [IF] DC DA WR	n/a
Focal Length (35mm equivalent):	27 - 203mm
Focal Length (actual):	18 - 135mm
Zoom Ratio:	7.50x
Aperture Range:	f/3.5 - f/22 (wide) / f/5.6 - f/40 (tele)
Integrated ND Filter:	No
Normal Focus Range:	40 cm to Infinity 15.7 in to Infinity
Macro Focus Range:
Filter Thread:	62.0mm	n/a
Thread Type:	n/a	n/a
Optical Image Stabilization:	No	No
Digital Zoom:		Yes
Digital Zoom Values:		2x (3x in movie mode)
Auto Focus
Auto Focus:	Yes	Yes
Auto Focus Type:	SAFOX 11 TTL phase-matching - 27 point (25 cross type focus points in the center)	High-speed imager AF: Hybrid Phase-detect/Contrast-detect AF, 121 AF points, all cross-type; All target, group target (5-area / 9- area / 25-area), single target (normal / small), custom target (1-4)
Auto Focus Assist Light?	Yes	Yes
Manual Focus:	Yes	Yes
Viewfinder
Viewfinder:	Optical / LCD	EVF / LCD
Viewfinder Type:	SLR type; eye-level pentaprism, ~100% coverage, 0.95x mag., TBDmm eyepoint, -2.5 to +1.5 diopter	EVF; High-speed (120fps) low latency (5ms) 2.36M-dot LCD, 1.48x - 1.65x magnification, 100% coverage, 21mm eyepoint, -4 to +2 diopter, eye sensor
Focus Peaking:	Yes	Yes
EVF Resolution:	n/a	2,360,000 dots
Viewfinder Magnification (35mm equivalent):	0.63x	0.83x
Viewfinder Magnification (nominal/claimed):	0.95x	1.65x
Display
Eye-level Viewfinder:	Yes	Yes
Rear Display:	Yes	Yes
Rear Display Size (inches):	3.2	3.0
Rear Display Resolution:	1,036,800 dots (345,600 px)	1,037,000 dots (345,667 px)
Touchscreen:	No	Yes
Articulating Screen:	No	Yes
Tilt Swivel Screen:	No	Yes
Selfie Screen:	No	Yes
Max Playback Zoom:	16.0x	14.0x
Top Deck Display:	Yes	No

Exposure
Maximum ISO (native):	51200	25600
Minimum ISO (native):	100	200
ISO Settings:	Auto, 100-51200 (1, 1/2 or 1/3 EV steps)	AUTO ISO: LOW (approx. 64) - 6400 with customizable upper limit (200 - 6400); Manual ISO: Low (approx. 64) - 25600, 1/3 or 1 EV steps selectable
Auto ISO Mode:	Yes	Yes
White Balance Settings:	Auto, Multi Auto WB, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N:Daylight White, W:Cool White, L:Warm White), Tungsten Light, Flash, CTE, Manual (up to 3 settings), Color Temperature (up to 3 settings)	Auto, Sunny (5300K), Shadow (7500K), Cloudy (6000K), Incandescent (3000K), Fluorescent (4000K), Underwater, WB Flash (5500K), Custom WB (Kelvin), One-touch WB (4); WB Tuning: +/-7 steps along A-B / G-M axis
Shutter Speed Range:	1/8000 - 30 sec	1/32000 - 60 sec
Bulb Mode:	Yes	Yes
Exposure Compensation:	+/- 5.0EV in 0.3EV steps	+/- 5.0EV in 0.3EV steps
Metering Modes:	TTL open-aperture: Multi-segment with 86K-pixel RGB sensor, Center-weighted, Spot	Digital ESP metering (324-area multi pattern metering), Center weighted average metering, Spot metering, Spot metering with highlight control, Spot metering with shadow control
Program Auto Exposure:	Yes	Yes
Aperture Priority:	Yes	Yes
Shutter Priority:	Yes	Yes
Full Manual Exposure:	Yes	Yes
Creative Exposure Modes:	Sensitivity Priority, Shutter and Aperture Priority; Digital filters (capture): Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome; HDR: Auto, HDR1, HDR2, HDR3.	4 Custom settings; Art Filter (Pop Art, Soft Focus, Pale & Light Color, Light Tone, Grainy Film, Pin Hole, Diorama, Cross Process, Gentle Sepia, Dramatic Tone, Key Line, Water Color, Vintage, Partial Color, Soft Focus Effect, Pin-Hole Effect, White Edge Effect, Frame Effect, Star Light Effect, Blur Effect, B&W Effect, Picture Tone, Shade Effect), Underwater Wide/Underwater Macro, HDR1/2, Live Bulb, Live Time, Live Composite, Live ND, Focus Stacking, Focus Bracketing
Self Timer:	2 or 12 seconds	2, 10, Custom seconds
Time Lapse (intervalometer):	Yes	Yes
High Resolution Composite:	No	80.0 megapixels
Flash
Built-in Flash:	Yes	No
Flash Modes:	P-TTL, Red-eye reduction, Slow-speed sync, Rear Curtain Sync. High-Speed Sync and Wireless Sync also available with PENTAX dedicated external flash.	Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual 1/1 (FULL) - 1/64
Flash Guide Number (ISO 100):	13.0 m / 42.7 ft.	n/a
Flash Range Description:	Depends on lens	n/a
Max Flash Sync:	1/180	1/250
Flash Exposure Compensation:	-2 to +1 EV in 0.5EV steps	+/- 3.0 EV in 0.3EV steps
External Flash Connection:	Hot Shoe, PC Sync socket	Hot Shoe, PC Sync Terminal
Built-In Wireless Flash Control:	Full TTL exposure	No
Image Storage
Usable Memory Types:	SD / SDHC / SDXC	SD / SDHC / SDXC
UHS Support:	UHS-I	UHS-II
Other Memory:		Slot 1: UHS-II, Slot 2: UHS-II
Dual Card Slots:	Yes	Yes
RAW Capture Support:	Yes	Yes
Uncompressed Format:	14-bit RAW (.PEF, .DNG), RAW+JPEG	12-bit lossless compressed RAW (.ORF), RAW + JPEG
Movie File Format:	MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record	MOV (MPEG-4 AVC/H.264 with stereo sound), AVI (Motion JPEG)
Included Memory:	No memory included	No memory included
Included Memory Type:
Connectivity
Built-In Wi-Fi:	No	Yes
NFC:	No	No
Bluetooth:	No	Yes
Built-In GPS:	No	Yes
Microphone Jack:	Yes	Yes
Headphone Jack:	Yes	Yes
External Connections:	USB 3.0 Super Speed	USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant:	No	Yes
DPOF Compliant:	Yes	Yes
Remote Control:	Yes	Yes
Remote Control Type:	Optional Wired or IR	Optional wired or via Wi-Fi/Bluetooth
Connections (extended):	Micro (Type D) HMDI, USB 3.0 Micro B, DC input, wired remote jack, 3.5mm external stereo mic jack, 3.5mm stereo headphone jack	Micro HDMI (Type-D), USB 3.0 Type C, 3.5mm external mic jack, 3.5mm external headphone jack, 2.5mm wired remote jack

Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):	0.79	0.46
Cycle time for RAW shooting in single shot mode (seconds per frame):	0.64
Buffer size for RAW shooting in single shot mode (frames):	Unlimited
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):	0.69	0.53
Camera penalizes early shutter press?	No	No
JPEG shooting speed in burst mode (fps, max resolution):	7.1	60.7
Buffer size for JPEG shooting in burst mode (frames, max resolution):	75	49
RAW shooting speed in burst mode (fps):	7.1	60.7
Buffer size for RAW shooting in burst mode (frames):	24	49
RAW+JPEG shooting speed in burst mode (fps):	7.1	60.7
Buffer Size for RAW+JPEG shooting in burst mode (frames):	25	48
Shutter lag (full AF, wide/mid):	0.14 seconds	0.09 seconds
Shutter lag (full AF, tele):
Shutter lag (full AF, live view - DSLR):	1.01 seconds
Shutter lag (prefocused, live view - DSLR):	0.226 seconds
Shutter Lag (manual focus):	0.097 seconds	0.060 seconds
Shutter lag (full AF, with flash):	0.33 seconds
Shutter Lag (prefocused):	0.096 seconds	0.038 seconds
Shutter Lag (notes):	Full AF lag, Wide-area mode, OVF = 0.157s Live View: Center mode AF lag = 1.014s Wide-area mode AF lag = 1.005s Prefocused = 0.226s
Startup Time:	0.9 seconds	0.8 seconds
Play -> Record Time:	0.6 seconds	0.6 seconds
Flash cycle time, full power:	2.3 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):		870 shots
Battery Life, Still (CIPA Rating OVF/EVF):	560 shots
Battery Life, Video:		90 minutes
Battery Form Factor:	Proprietary D-LI90	Proprietary BLH-1
Usable Battery Types:	Lithium-ion rechargeable	1720mAh Lithium-ion rechargeable
Batteries Included:	1 x Proprietary D-LI90 Lithium-ion rechargeable	2 x Proprietary BLH-1 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 S-SW140
OS Compatibility:
Miscellaneous
Notes & Features:	Image stabilization system also acts as a selectable AA filter, 8.3 fps full-res burst mode, new 27-point AF system, new 86,000 pixel RGB metering system, Full HD video up to 60i with H.264 encoding, dual SD card slots, freeze-proof, dust-proof, weather-resistant magnesium alloy construction, USB 3.0 port.