• APS-C 369.7mm2
  • 14.6 megapixels
  • ISO 100 - 3200
  • APS-C 372.9mm2
  • 12.3 megapixels
  • ISO 200 - 3200
  • Detailed specifications
  • Samsung GX-20
  • Nikon D90
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Nikon D90 webpage
Predecessor:   Nikon D80
D80 vs D90
Successor:   Nikon D7000
D90 vs D7000
General
Model Number: GX-20 D90
Alternate Model Number(s):    
Camera Format: Pro SLR SLR
Currently Manufactured: No No
Retail Price: $1399.95 $1299.95
Street Price:    
Date Available: 2008-03-30 2008-09-15
Tripod Mount: Yes Yes
Weight: 25.2 oz (714 g) 40.0 oz (1,133 g)
includes batteries, kit lens
Size: 5.6 x 4.0 x 2.8 in.
(142 x 102 x 70 mm)
5.2 x 4.1 x 3.0 in.
(132 x 103 x 77 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:    
Effective Megapixels: 14.6 12.3
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 372.88mm2 (23.60mm x 15.80mm)
Approximate Pixel Pitch: 5.07 microns 5.50 microns
Focal Length Multiplier: 1.5x 1.5x
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 No
DxO Sensor Score: 68 73
DxO Color Depth Score (bits): 23.1 22.7
DxO Dynamic Range Score (evs): 11.2 12.5
DxO Maximum Effective ISO Score (iso): 714 977
Image Capture
Image Resolution: 4672 x 3104 (14.5 MP, Other),
3872 x 2592 (10.0 MP, Other),
3008 x 2000 (6.0 MP, 3:2),
1824 x 1216 (2.2 MP, 3:2)
4288 x 2848 (12.2 MP, Other),
3216 x 2136 (6.9 MP, Other),
2144 x 1424 (3.1 MP, Other)
Image File Format: JPEG (EXIF 2.21), RAW (.PEF, .DNG), 14-bit JPEG (EXIF 2.21), NEF (RAW), 12-bit; RAW+JPEG
Continuous-mode frames/second: n/a 4.5
Video Capture
Can take movies: No Yes
Movie Resolution: 1280x720 (24)
640x424 (24)
320x216 (24)
Movie File Format:   AVI (Motion JPEG)
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder: No Yes
HD Video Out: No Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: Pentax K (KA/KAF/KAF2) Nikon F
Lens: n/a Nikkor AF-S 18-105mm f/3.5 -5.6G ED VR
Focal Length (35mm equivalent):   27 - 158mm
Focal Length (actual):   18 - 105mm
Zoom Ratio:   5.80x
Aperture Range:   f/3.5 -22 (W), f/5.6 -38 (T)
Integrated ND Filter: No No
Normal Focus Range:   45 cm to Infinity
17.7 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 67.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: No No
Digital Zoom Values: n/a n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 11-point TTL phase-matching (SAFOX VIII) 11 point TTL phase detection with 3D focus tracking by Nikon Multi-CAM 1000
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD Optical / LCD
Viewfinder Type: SLR type; eye-level pentaprism SLR type; fixed eye-level pentaprism, 96% coverage, 0.94x mag., 19.5mm eyepoint, -2 to +1 diopter
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):   0.63x
Viewfinder Magnification (nominal/claimed):   0.94x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.0
Rear Display Resolution: 230,000 dots 921,600 dots (307,200 px)
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 32.0x 27.0x
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 3200 3200
Minimum ISO (native): 100 200
ISO Settings: Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) Auto, ISO 200-3200, Lo-1=100, Hi-1=6400
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature Auto, 7 manual modes with fine tuning, color temperature
Shutter Speed Range: 1/4000 - 30 sec 1/4000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: TTL open-aperture: 16-segment, Center-weighted, Spot 3D Color Matrix Metering II (420-pixel RGB), Center-weighted, Spot
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 Portrait, Landscape, Close-up, Sports, Night Portrait
Self Timer: 2 or 12 seconds 2 to 20 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync, Wireless Front-Curtain Sync, Red-Eye Reduction, Red-Eye Reduction with Slow Sync, Slow Sync, and Rear-Curtain Sync; supports Advanced Wireless Lighting system
Flash Guide Number (ISO 100): n/a 12.0 m / 39.4 ft.
Flash Range Description: Depends on lens Lens dependent
Max Flash Sync: 1/180 1/200
Flash Exposure Compensation:   -3 to +1 EV in 0.3EV steps
External Flash Connection: Hot Shoe, X-Sync Socket Hot Shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC SD / SDHC
UHS Support:   No UHS support
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (.PEF, .DNG), 14-bit NEF (RAW), 12-bit; RAW+JPEG
Movie File Format:   AVI (Motion JPEG)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No No
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Wired or IR Optional wired or wireless
Connections (extended): DC input, wired remote HDMI Out, DC In, 10-pin Accessory Port
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.36
Cycle time for RAW shooting in single shot mode (seconds per frame):   0.35
Buffer size for RAW shooting in single shot mode (frames):   13
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.32
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution):   4.5
Buffer size for JPEG shooting in burst mode (frames, max resolution):   Unlimited
RAW shooting speed in burst mode (fps):   4.1
Buffer size for RAW shooting in burst mode (frames):   10
RAW+JPEG shooting speed in burst mode (fps):   4.2
Buffer Size for RAW+JPEG shooting in burst mode (frames):   7
Shutter lag (full AF, wide/mid):   0.21 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):   2.29 seconds
Shutter lag (prefocused, live view - DSLR):   0.519 seconds
Shutter Lag (manual focus):   0.067 seconds
Shutter lag (full AF, with flash):   0.25 seconds
Shutter Lag (prefocused):   0.067 seconds
Shutter Lag (notes):   Live View: Full autofocus: 2.294s Prefocused: 0.519s
Startup Time:   0.3 seconds
Play -> Record Time:   0.3 seconds
Flash cycle time, full power:   2.2 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF):   850 shots
Battery Life, Video:    
Battery Form Factor: Proprietary Proprietary EN-EL3e, optional MB-D80 battery pack
Usable Battery Types: Lithium-ion rechargeable Lithium Ion rechargeable
Batteries Included: 1 x Proprietary Lithium-ion rechargeable 1 x Proprietary EN-EL3e Lithium Ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software:   PictureProject CD-ROM
OS Compatibility:   Windows, Mac OS
Miscellaneous
Notes & Features: Live View with Face Detection, Dust Reduction, HDMI Output, Scene Recognition System, Active D-Lighting, Picture Control, Extensive In-camera Editing, GPS support.