Comparisons / Comparison of Nikon D90 and Pentax K-7

Comparison of Nikon D90 and Pentax K-7 [S]ave

Attribute
Nikon D90 ×
Pentax K-7 ×
General
ModelNikon D90Pentax K-7
BrandNikonPentax
Manufacturer url-https://us.ricoh-imaging.com/
Model numberD90K-7
Camera formatSLRPro SLR
Release year (year)20082009
Tripod mount++
Length (mm)132130
Width (mm)7774
Height (mm)10397
Weight (g)1,133758
Waterproof--
PredecessorNikon D80Pentax K20D
SuccessorNikon D700Pentax K-5
Image Sensor
Sensor typeCMOSCMOS
Effective megapixels (MP)12.314.6
Sensor formatAPS-CAPS-C
Sensor area (mm²)372.88369.72
Sensor width (mm)23.623.7
Sensor height (mm)15.815.6
Approximate pixel pitch (micron)5.55.07
Focal Length Multiplier (x)1.51.5
Aspect ratio3:23:2
Color filter typeRGBGRGBG
Anti aliasing filterFixedFixed
Self-cleaning++
Sensor shift image stabilization-+
On-sensor phase detect--
Dxo sensor score7361
Dxo color depth score (bit)22.722.6
Dxo dynamic range score (evs)12.510.6
Dxo maximum effective iso score (iso)977536
Image Capture
Image resolution
  • 2144 x 1424(3.1 mp other)
  • 3216 x 2136(6.9 mp other)
  • 4288 x 2848(12.2 mp other)
  • 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)
Image file format
  • 12-bit
  • jpeg (exif 2.21)
  • nef (raw)
  • raw+jpeg
  • .dng)
  • jpeg (exif 2.21)
  • raw (.pef
Continuous-mode (fps)4.55.2
Video Capture
Can take movies++
Movie resolution
  • 1280x720
  • 320x216
  • 640x424
  • 1280x720
  • 1536x1024
  • 640x416
Image Storage
Movie file formatAVI (Motion JPEG)AVI (Motion JPEG)
Composite video out++
Ntsc/pal switchable video++
Video usable as viewfinder+-
Hd video out++
Hd video connectionHDMIHDMI
Lens and Optics
Lens mountNikon FPentax K (KA/KAF/KAF2)
LensNikkor AF-S 18-105mm f/3.5 -5.6G ED VR-
Focal length (35mm equivalent) (mm)27.00 - 158.00-
Focal length (actual) (mm)18.00 - 105.00-
Zoom ratio (x)5.8-
Aperture range (f)0.18 - 0.29-
Integrated nd filter--
Min focus range (cm)45-
Filter thread (mm)67-
Optical image stabilization+-
Digital zoom--
Auto Focus
Auto focus++
Auto focus type11 point TTL phase detection with 3D focus tracking by Nikon Multi-CAM 100011-point TTL phase-matching (SAFOX VIII)
Auto focus assist light++
Manual focus++
Viewfinder
ViewfinderOptical / LCDOptical / LCD
Viewfinder typeSLR type; fixed eye-level pentaprism, 96% coverage, 0.94x mag., 19.5mm eyepoint, -2 to +1 diopterSLR type; eye-level pentaprism, 100% coverage, 0.92x mag., -2.5 to 1.5 diopter
Focus peaking--
Viewfinder magnification (35mm equivalent) (x)0.630.61
Viewfinder magnification (nominal/claimed) (x)0.940.92
Display
Eye-level viewfinder++
Rear display++
Rear display size (inch)33
Rear display resolution (dots)921,600921,000
Touchscreen--
Articulating screen--
Tilt swivel screen--
Selfie screen--
Max playback zoom (x)2732
Top deck display++
Exposure
Maximum iso (native)3,2003,200
Minimum iso (native)200100
Iso settingsAuto, ISO 200-3200, Lo-1=100, Hi-1=6400Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded)
Auto iso mode++
White balance settings
  • 7 manual modes with fine tuning
  • auto
  • color temperature
  • auto
  • cloudy
  • color temperature
  • d
  • daylight
  • flash
  • fluorescent (w
  • n)
  • shade
  • tungsten
Shutter speed range (s)1/4000 - 301/8000 - 30
Bulb mode++
Exposure compensation+/- 5.0EV in 0.3EV steps+/- 5.0EV in 0.3EV steps
Explosure metering modes3D Color Matrix Metering II (420-pixel RGB), Center-weighted, SpotTTL open-aperture: 77-segment, Center-weighted, Spot
Program auto exposure++
Aperture priority++
Shutter priority++
Full manual exposure++
Creative exposure modesPortrait, Landscape, Close-up, Sports, Night PortraitSensitivity Priority, Shutter and Aperture Priority, USER, Movie
Self timer (s)
  • 2
  • 20
  • 2
  • 12
Time lapse (intervalometer)-+
High resolution composite--
Flash
Built-in flash++
Flash modes
  • and rear-curtain sync
  • front-curtain sync
  • red-eye reduction
  • red-eye reduction with slow sync
  • slow sync
  • supports advanced wireless lighting system
  • on
  • redeye
  • slow sync
  • slow sync + redeye
  • trailing curtain sync
  • wireless
Flash guide number (iso 100) (m)1213
Flash range descriptionLens dependentDepends on lens
Max flash sync (s)1/2001/180
Flash exposure compensation-3 to +1 EV in 0.3EV steps-2 to +1 EV in 0.5EV steps
External flash connectionHot ShoeHot Shoe, PC-Sync Socket
Built-in wireless flash control--
Usable memory types
  • sd
  • sdh
  • sd
  • sdh
Uhs supportNo UHS support-
Dual card slots--
Raw capture support++
Uncompressed format
  • 12-bit
  • nef (raw)
  • raw+jpeg
  • .dng)
  • raw (.pef
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
  • optional wired or wireless
  • wired or ir
Connections (extended)
  • 10-pin accessory port
  • dc in
  • hdmi out
  • dc input
  • external stereo mic jack
  • wired remote
Performance Timing
Max cycle time for jpeg shooting (s/frame)0.360.3
Max cycle time for raw shooting (s/frame)0.350.3
Buffer size for raw shooting in single shot mode (frames)1313
Max cycle time for raw plus jpeg shooting (s/frame)0.32-
Camera penalizes early shutter press--
Jpeg shooting speed in burst mode (max resolution) (fps)4.55.2
Buffer size for jpeg shooting in burst mode (max resolution) (frames)-20
Raw shooting speed in burst mode (fps)4.1-
Buffer size for raw shooting in burst mode (frames)10-
Raw plus jpeg shooting speed in burst mode (fps)4.2-
Buffer size for raw plus jpeg shooting in burst mode (frames)7-
Shutter lag (full af, wide/mid) (s)0.210.09
Shutter lag (full af, live view - dslr) (s)2.29-
Shutter lag (prefocused, live view - dslr) (s)0.52-
Shutter lag (manual focus) (s)0.070.07
Shutter lag (full af, with flash) (s)0.250.15
Shutter lag (prefocused) (s)0.070.07
Shutter lag (notes)Live View:Full autofocus: 2.294sPrefocused: 0.519sLive ViewPhase-Detect Full AF: 1.2 secondsContrast-Detect Full AF: 2.3 secondsPrefocused: 0.405 second
Startup time (s)0.30.6
Play -> record time (s)0.30.1
Flash cycle time, full power (s)2.23.7
Power
Battery life, still (cipa rating ovf/evf) (shots)850740
Battery form factorProprietary EN-EL3e, optional MB-D80 battery packProprietary D-LI90
Usable battery types
  • lithium ion rechargeable
  • lithium-ion rechargeable
Batteries included1 x Proprietary EN-EL3e Lithium Ion rechargeable1 x Proprietary D-LI90 Lithium-ion rechargeable
Battery charger included (dedicated charger or ac/usb adapter)++
Dedicated battery charger included+-
Internal charging supported--
Software
Included software
  • pictureproject cd-rom
  • cd-rom s-sw74/75
Os compatibility
  • mac os
  • windows
  • macos 10.2 or later
  • windows xp/vista
Miscellaneous
Notes and featuresLive View with Face Detection, Dust Reduction, HDMI Output, Scene Recognition System, Active D-Lighting, Picture ControlSensor-shift image stabilization, new 77-segment metering system, Distortion and Lateral Chromatic Aberrations correction



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