• 1/2.33 inch 28.2mm2
  • 12.1 megapixels
  • 26.00mm - 676.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 16.1 megapixels
  • 25.00mm - 125.00mm (35mm eq.)
  • Detailed specifications
  • Pentax X90
  • Samsung ST66
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Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax X70
X70 vs X90
 
Successor:    
General
Model Number: X90 ST66
Alternate Model Number(s):    
Camera Format: EVF Compact
Currently Manufactured: No No
Retail Price: $399.95 $119.00
Street Price:   $229.95
Date Available: 2010-04-30 2012-03-15
Tripod Mount: Yes Yes
Weight: 15.4 oz (438 g)
includes batteries
3.6 oz (101 g)
Size: 4.4 x 3.3 x 4.3 in.
(112 x 84 x 109 mm)
3.5 x 2.1 x 0.7 in.
(90 x 53 x 17 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CCD
Sensor Manufacturer:    
Effective Megapixels: 12.1 16.1
Sensor Format: 1/2.33 inch 1/2.3 inch
Sensor size: 28.198mm2 (6.13mm x 4.6mm) 28.0735mm2 (6.17mm x 4.55mm)
Approximate Pixel Pitch: 1.53 microns 1.34 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3, 16:9 4:3
Color Filter Type: RGBG  
Anti Aliasing Filter:    
Self-Cleaning: No No
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
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),
4000 x 2672 (10.7 MP, 3:2),
4000 x 2256 (9.0 MP, Other),
2992 x 2992 (9.0 MP, 1:1),
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)
4608 x 3456 (15.9 MP, 4:3),
4608 x 3072 (14.2 MP, 3:2),
4608 x 2592 (11.9 MP, 16:9),
3648 x 2736 (10.0 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
1984 x 1488 (3.0 MP, 4:3),
1920 x 1080 (2.1 MP, 16:9),
1024 x 768 (0.8 MP, 4:3)
Image File Format: JPEG (EXIF 2.2) JPEG
Continuous-mode frames/second: 1.2 n/a
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1280x720 (30/​15)
640x480 (30/​15)
320x240 (30/​15)
1280x720 (30p/​15p)
640x480 (30p/​15p)
320x240 (30p/​15p)
Movie File Format: AVI (Motion JPEG) AVI (Motion JPEG) with monaural sound
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out: Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a n/a
Lens: Pentax; 14 elements in 11 groups with 4 asph. and 3 ED elements Samsung Zoom
Focal Length (35mm equivalent): 26 - 676mm 25 - 125mm
Focal Length (actual): 4.6 - 119.6mm 4.5 - 22.5mm
Zoom Ratio: 26.00x 5.00x
Aperture Range: f/2.8 (Wide) - f/5.0 (Tele) f/2.5 (wide) / f/6.3 (tele) - ???
Integrated ND Filter: No No
Normal Focus Range: 40 cm to Infinity
15.7 in to Infinity
80 cm to Infinity
31.5 in to Infinity
Macro Focus Range: 1 - 30 cm
0.4 - 11.8 in
5 cm to Infinity
2.0 in to Infinity
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 6.25x; Intelligent Zoom up to 162.5x at VGA Up to 5x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast detect with Face-priority AF; 9-area Auto, 99-area manual select, center Contrast Detection: Multi AF, Centre AF, Face Detection AF, Object Tracking AF, Smart Face Recognition AF
Auto Focus Assist Light? Yes Yes
Manual Focus: No No
Viewfinder
Viewfinder: EVF / LCD LCD
Viewfinder Type: EVF; 200K dots with diopter control  
Focus Peaking: No No
EVF Resolution:   n/a
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: Yes No
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 2.7
Rear Display Resolution: 230,000 dots 230,000 dots
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 10.0x  
Top Deck Display:
Exposure
Maximum ISO (native):    
Minimum ISO (native):    
ISO Settings: Auto (80-1600), Digital SR (80-6400*), Manual (80, 100, 200, 400, 800, 1600, 3200*, 6400*) (*3200 and 6400 at 5MP) Auto, 80, 100, 200, 400, 800, 1600, 3200
Auto ISO Mode: Yes No
White Balance Settings: Auto, Daylight, Shade, Tungsten, Fluorescent (W, D, N), Manual Auto, Daylight, Cloudy, Fluorescent_H, Fluorescent_L, Tungsten, Custom
Shutter Speed Range: 1/4000 - 4 sec 1/2000 - 8 sec
Bulb Mode: No No
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: Multi-segment, Center-weighted, Spot, Spot AF area Multi, Spot, Center Weighted, Face Detection AE
Program Auto Exposure: Yes Yes
Aperture Priority: Yes No
Shutter Priority: Yes No
Full Manual Exposure: Yes No
Creative Exposure Modes: Sport, Digital SR, Landscape, Flower, Portrait, Backlight, Half Length Portrait (3M), Night Scene, Night Scene Portrait, Stage Lighting (2M), Surf & Snow, Baby, Kids, Pet, Food, Fireworks, Frame Composite (3M), Party, Museum, Sunset, Digital Wide (5M), Digital Panorama (2M per frame) Picture-in-Picture, Live Panorama Smart Auto : Portrait, Night Portrait, Backlight Portrait, Night, Backlight, Landscape, White, NaturalGreen, BlueSky, Sunset, Macro, Macro Text, Macro Color, Tripod, Action, Fireworks Scene : Funny Face, Intelligent Portrait, Magic Frame, Beauty-Shot, Night, Landscape, Text, Sunset, Dawn, Backlight, Beach&Snow
Self Timer: 10 or 2 seconds 2, 10, Double seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Flash Off, Flash On, Auto + Redeye, On + Redeye, Slow Sync, Slow Sync + Redeye Auto, Auto & Red-eye reduction, Fill-in flash, Slow sync, Flash Off, Red-eye fix
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: 30 ft (wide, auto ISO), 17 ft (tele, auto ISO) Wide : 0.3m - 4.2m Tele : 0.5m - 1.6m (ISO AUTO)
Max Flash Sync:    
Flash Exposure Compensation:    
External Flash Connection: n/a n/a
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: SD / SDHC microSD / microSDHC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No No
Uncompressed Format:    
Movie File Format: AVI (Motion JPEG) AVI (Motion JPEG) with monaural sound
Included Memory: 31.2 MB  
Included Memory Type: Internal  
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: No No
DPOF Compliant: Yes No
Remote Control: No
Remote Control Type:    
Connections (extended): HDMI Out (type D)  
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 3.25  
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):    
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 1.2  
Buffer size for JPEG shooting in burst mode (frames, max resolution): 9  
RAW shooting speed in burst mode (fps):    
Buffer size for RAW shooting in burst mode (frames):    
RAW+JPEG shooting speed in burst mode (fps):    
Buffer Size for RAW+JPEG shooting in burst mode (frames):    
Shutter lag (full AF, wide/mid): 0.65 seconds  
Shutter lag (full AF, tele): 0.62 seconds  
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):    
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.009 seconds  
Shutter Lag (notes):    
Startup Time: 2.9 seconds  
Play -> Record Time:    
Flash cycle time, full power: 6.5 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 255 shots  
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI106 Proprietary
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI106 Lithium-ion rechargeable 1 x Proprietary Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Software CD-ROM S-SW87  
OS Compatibility: Windows XP/Vista/7; Mac OS X 10.3.9+  
Miscellaneous
Notes & Features: Sensor-shift Shake Reduction, 720p HD Movies, HDMI Output, Continuous Mode up to 11 fps at 5MP. 720p Video, Live Panorama, Smart Auto 2.0, Magic Frame, Picture-in-Picture, Funny Face. Available in a range of vibrant and trendy colors.