Comparisons / Comparison of Nikon J2 and Pentax K-7

Comparison of Nikon J2 and Pentax K-7 [S]ave

Attribute
Pentax K-7 ×
Nikon J2 ×
General
ModelPentax K-7Nikon J2
BrandPentaxNikon
Manufacturer urlhttps://us.ricoh-imaging.com/https://www.nikonusa.com/
Model numberK-7J2
Camera formatPro SLRCompact System Camera
Release year (year)20092012
Tripod mount++
Length (mm)130106
Width (mm)7430
Height (mm)9761
Weight (g)758395
Waterproof--
PredecessorPentax K20D-
SuccessorPentax K-5-
Image Sensor
Sensor typeCMOSCMOS
Sensor manufacturer-Aptina
Effective megapixels (MP)14.610.1
Sensor formatAPS-C1 inch
Sensor area (mm²)369.72116.16
Sensor width (mm)23.713.2
Sensor height (mm)15.68.8
Approximate pixel pitch (micron)5.073.41
Focal Length Multiplier (x)1.52.7
Aspect ratio3:23:2
Color filter typeRGBGRGBG
Anti aliasing filterFixedFixed
Self-cleaning+-
Sensor shift image stabilization+-
On-sensor phase detect-+
Dxo sensor score6154
Dxo color depth score (bit)22.621.3
Dxo dynamic range score (evs)10.610.8
Dxo maximum effective iso score (iso)536363
Image Capture
Image resolution
  • 1728 x 1152(2.0 mp 3:2)
  • 3072 x 2048(6.3 mp 3:2)
  • 3936 x 2624(10.3 mp 3:2)
  • 4672 x 3104(14.5 mp other)
  • 1024 x 3200(3.3 mp other)
  • 1024 x 6400(6.6 mp other)
  • 1280 x 720(0.9 mp 16:9)
  • 1920 x 1080(2.1 mp 16:9)
  • 1936 x 1296(2.5 mp other)
  • 2896 x 1944(5.6 mp other)
  • 3200 x 560(1.8 mp other)
  • 3840 x 2160(8.3 mp 16:9)
  • 3872 x 2592(10.0 mp other)
  • 6400 x 560(3.6 mp other)
Image file format
  • .dng)
  • jpeg (exif 2.21)
  • raw (.pef
  • 12-bit nef raw
  • jpeg (exif 2.3)
  • raw+jpg
Continuous-mode (fps)5.260
Video Capture
Can take movies++
Movie resolution
  • 1280x720
  • 1536x1024
  • 640x416
  • 1280x720
  • 1920x1080
  • 320x120
  • 640x240
Movie max framerate (fps)-60
Image Storage
Movie file formatAVI (Motion JPEG)MOV H.264/MPEG-4 AVC with AAC sound
Composite video out+-
Ntsc/pal switchable video+-
Video usable as viewfinder--
Hd video out++
Hd video connectionHDMIHDMI
Lens and Optics
Lens mountPentax K (KA/KAF/KAF2)Nikon 1
Lens-1 Nikkor 10-30mm f/3.5-5.6 VR
Focal length (35mm equivalent) (mm)-27.00 - 81.00
Focal length (actual) (mm)-10.00 - 30.00
Zoom ratio (x)-3
Aperture range (f)-0.18 - 0.29
Integrated nd filter--
Min focus range (cm)-20
Filter thread (mm)-40
Optical image stabilization-+
Digital zoom--
Auto Focus
Auto focus++
Auto focus type11-point TTL phase-matching (SAFOX VIII)Hybrid autofocus (phase detection/contrast-detect AF); Single-point (135 focus areas, center 73 support phase-detect)
Auto focus assist light++
Manual focus++
Viewfinder
ViewfinderOptical / LCDNo / LCD
Viewfinder typeSLR type; eye-level pentaprism, 100% coverage, 0.92x mag., -2.5 to 1.5 diopter-
Focus peaking--
Viewfinder magnification (35mm equivalent) (x)0.61-
Viewfinder magnification (nominal/claimed) (x)0.92-
Display
Eye-level viewfinder+-
Rear display++
Rear display size (inch)33
Rear display resolution (dots)921,000921,000
Touchscreen--
Articulating screen--
Tilt swivel screen--
Selfie screen--
Max playback zoom (x)32-
Top deck display+-
Exposure
Maximum iso (native)3,2003,200
Minimum iso (native)100100
Iso settingsAuto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded)Auto ISO (100-3200, 100-800, 100-400); 100, 200, 400, 800, 1600, 3200; expandable to 6400 Hi-1
Auto iso mode++
White balance settings
  • auto
  • cloudy
  • color temperature
  • d
  • daylight
  • flash
  • fluorescent (w
  • n)
  • shade
  • tungsten
  • all except preset manual with fine tuning
  • auto
  • cloudy
  • direct sunlight
  • flash
  • fluorescent
  • incandescent
  • preset manual
  • shade
Shutter speed range (s)1/8000 - 301/16000 - 30
Bulb mode++
Exposure compensation+/- 5.0EV in 0.3EV steps+/- 3.0EV in 0.3EV steps
Explosure metering modesTTL open-aperture: 77-segment, Center-weighted, SpotMatrix, Center-weighted (4.5mm), Spot (2mm)
Program auto exposure++
Aperture priority++
Shutter priority++
Full manual exposure++
Creative exposure modesSensitivity Priority, Shutter and Aperture Priority, USER, MovieNew Creative Mode includes Easy Panorama, Selective Color, Miniature, Soft, Night Landscape, Backlighting and Night Portrait.
Self timer (s)
  • 2
  • 12
  • 2
  • 5
  • 10
Time lapse (intervalometer)+-
High resolution composite--
Flash
Built-in flash++
Flash modes
  • on
  • redeye
  • slow sync
  • slow sync + redeye
  • trailing curtain sync
  • wireless
  • fill flash
  • rear curtain with slow sync
  • rear-curtain sync
  • red-eye reduction
  • slow sync
  • slow sync with red-eye reduction
Flash guide number (iso 100) (m)135
Flash range descriptionDepends on lensLens dependent.
Max flash sync (s)1/1801/60
Flash exposure compensation-2 to +1 EV in 0.5EV steps-3 to +1 EV in 0.3EV steps
External flash connectionHot Shoe, PC-Sync Socket-
Built-in wireless flash control--
Usable memory types
  • sd
  • sdh
  • sd
  • sdhc
  • sdx
Dual card slots--
Raw capture support++
Uncompressed format
  • .dng)
  • raw (.pef
  • 12-bit nef raw
  • raw+jpg
Included memory (MB)-0
Connectivity
Built-in wi-fi--
NFC--
Bluetooth--
Built-in gps--
Microphone jack--
Headphone jack--
External connections
  • usb 2.0 high speed
  • usb 2.0 high speed
Pictbridge compliant-+
Dpof compliant++
Remote control++
Remote control type
  • wired or ir
  • optional ml-l3
Connections (extended)
  • dc input
  • external stereo mic jack
  • wired remote
  • hdmi out (type c
  • mini)
Performance Timing
Max cycle time for jpeg shooting (s/frame)0.3-
Max cycle time for raw shooting (s/frame)0.3-
Buffer size for raw shooting in single shot mode (frames)13-
Camera penalizes early shutter press--
Jpeg shooting speed in burst mode (max resolution) (fps)5.260
Buffer size for jpeg shooting in burst mode (max resolution) (frames)2012
Shutter lag (full af, wide/mid) (s)0.09-
Shutter lag (manual focus) (s)0.07-
Shutter lag (full af, with flash) (s)0.15-
Shutter lag (prefocused) (s)0.07-
Shutter lag (notes)Live ViewPhase-Detect Full AF: 1.2 secondsContrast-Detect Full AF: 2.3 secondsPrefocused: 0.405 second-
Startup time (s)0.6-
Play -> record time (s)0.1-
Flash cycle time, full power (s)3.7-
Power
Battery life, still (cipa rating ovf/evf) (shots)740-
Battery form factorProprietary D-LI90Proprietary EN-EL20
Usable battery types
  • lithium-ion rechargeable
  • lithium-ion rechargeable
Batteries included1 x Proprietary D-LI90 Lithium-ion rechargeable1 x Proprietary EN-EL20 Lithium-ion rechargeable
Battery charger included (dedicated charger or ac/usb adapter)++
Software
Included software
  • cd-rom s-sw74/75
  • viewnx 2 / short movie creator cd-rom
Os compatibility
  • macos 10.2 or later
  • windows xp/vista
-
Miscellaneous
Notes and featuresSensor-shift image stabilization, new 77-segment metering system, Distortion and Lateral Chromatic Aberrations correctionHigh resolution 921K-dot LCD, metallic body, new Creative Mode includes Panorama, Selective Color, Miniature, Soft



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