• 1/2.33 inch 28.2mm2
  • 12.1 megapixels
  • 26.00mm - 676.00mm (35mm eq.)
  • APS-C 332.3mm2
  • 24.1 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Pentax X90
  • Canon EOS Rebel T8i (EOS 850D)
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax X70
X70 vs X90
Canon T7i
T7i vs T8i
Successor:    
General
Model Number: X90 T8i
Alternate Model Number(s):   850D, Kiss X10i
Camera Format: EVF SLR
Currently Manufactured: No Yes
Retail Price: $399.95 $749.99
Street Price:   $749.00
Date Available: 2010-04-30 TBD
Tripod Mount: Yes Yes
Weight: 15.4 oz (438 g)
includes batteries
18.2 oz (515 g)
includes batteries
Size: 4.4 x 3.3 x 4.3 in.
(112 x 84 x 109 mm)
5.2 x 4.0 x 3.0 in.
(131 x 103 x 76 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:   Canon
Effective Megapixels: 12.1 24.1
Sensor Format: 1/2.33 inch APS-C
Sensor size: 28.198mm2 (6.13mm x 4.6mm) 332.27mm2 (22.30mm x 14.90mm)
Approximate Pixel Pitch: 1.53 microns 3.72 microns
Focal Length Multiplier: n/a 1.6x
Aspect Ratio: 4:3, 16:9 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter:   Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
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)
6000 x 4000 (24.0 MP, 3:2),
3984 x 2656 (10.6 MP, 3:2),
2976 x 1984 (5.9 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2),
6000 x 3368 (20.2 MP, 16:9),
3984 x 2240 (8.9 MP, 16:9),
2976 x 1680 (5.0 MP, Other),
2400 x 1344 (3.2 MP, Other),
5328 x 4000 (21.3 MP, 4:3),
3552 x 2664 (9.5 MP, 4:3),
2656 x 1992 (5.3 MP, 4:3),
2112 x 1600 (3.4 MP, Other),
4000 x 4000 (16.0 MP, 1:1),
2656 x 2656 (7.1 MP, 1:1),
1984 x 1984 (3.9 MP, 1:1),
1600 x 1600 (2.6 MP, 1:1)
Image File Format: JPEG (EXIF 2.2) C-RAW, JPEG, .CR3 RAW (14-bit)
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)
3840x2160 (24p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p)
Movie File Format: AVI (Motion JPEG) MPEG-4 AVC/H.264 video with AAC stereo audio in MP4 container
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: n/a Canon EF/EF-S
Lens: Pentax; 14 elements in 11 groups with 4 asph. and 3 ED elements Canon EF-S 18-55mm f/4-5.6 IS STM
Focal Length (35mm equivalent): 26 - 676mm 29 - 88mm
Focal Length (actual): 4.6 - 119.6mm 18 - 55mm
Zoom Ratio: 26.00x 3.06x
Aperture Range: f/2.8 (Wide) - f/5.0 (Tele) f/4 - 22 (wide) / f/5.6 - 38 (tele)
Integrated ND Filter: No No
Normal Focus Range: 40 cm to Infinity
15.7 in to Infinity
25 cm to Infinity
9.8 in to Infinity
Macro Focus Range: 1 - 30 cm
0.4 - 11.8 in
 
Filter Thread: n/a 58.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: Yes
Digital Zoom Values: Up to 6.25x; Intelligent Zoom up to 162.5x at VGA  
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast detect with Face-priority AF; 9-area Auto, 99-area manual select, center OVF: AF-dedicated CMOS sensor, 45-points, up to 45 cross-type (f/5.6), 1 dual-cross (f/2.8 and f/5.6), 27 support f/8 (9 cross-type); Live View: Dual-Pixel CMOS AF
Auto Focus Assist Light? Yes Yes
Manual Focus: No Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: EVF; 200K dots with diopter control SLR type; fixed eye-level pentamirror, ~95% coverage, ~0.82x mag., 19mm eyepoint, -3 to +1 diopter
Focus Peaking: No Yes
EVF Resolution:   n/a
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.0
Rear Display Resolution: 230,000 dots 1,040,000 dots (345,600 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 10.0x 10.0x
Top Deck Display: No
Exposure
Maximum ISO (native):   25600
Minimum ISO (native):   100
ISO Settings: Auto (80-1600), Digital SR (80-6400*), Manual (80, 100, 200, 400, 800, 1600, 3200*, 6400*) (*3200 and 6400 at 5MP) Auto, 100 - 25600 in 1/3EV steps, Expandable to 51200
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Tungsten, Fluorescent (W, D, N), Manual Auto, Daylight, Shade, Cloudy, Tungsten, White Fluorescent, Flash, Custom WB, Color Temperature K (Manually adjustable between 2000 - 10000K)
Shutter Speed Range: 1/4000 - 4 sec 1/4000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: Multi-segment, Center-weighted, Spot, Spot AF area 220,000-pixel RGB+IR metering sensor; 216-zone (18 x 12) metering optical viewfinder; Evaluative (linked to all AF points), Center-weighted, Partial (center, approx. 6.5% of viewfinder), Spot (center, approx. 2.0% of viewfinder)
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
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) Scene Intelligent Auto, Flash Off, Creative Auto, Portrait, Landscape, Close-up, Sports, Special Scene (Group Photo, Kids, Food, Candlelight, Night Portrait, Handheld Night Scene, HDR Backlight Control), Creative Filters (Grainy B/W, Soft Focus, Fish-eye, Water Painting, Toy Camera, Miniature, HDR Art (Standard/Vivid/Bold/Embossed)
Self Timer: 10 or 2 seconds 10, 2, Remote, 10s Continuous (2-10) seconds
Time Lapse (intervalometer):   Yes
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 E-TTL II Auto, Manual, Red-Eye Reduction
Flash Guide Number (ISO 100): n/a 12.0 m / 39.4 ft.
Flash Range Description: 30 ft (wide, auto ISO), 17 ft (tele, auto ISO) Guide Number is 12m/39.4 ft at ISO 100; Range is lens aperture dependent
Max Flash Sync:   1/200
Flash Exposure Compensation:   +/- 2.0 EV in 0.3EV steps
External Flash Connection: n/a Hot Shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No Yes
Uncompressed Format:   .CR3 RAW (14-bit)
Movie File Format: AVI (Motion JPEG) MPEG-4 AVC/H.264 video with AAC stereo audio in MP4 container
Included Memory: 31.2 MB No memory included
Included Memory Type: Internal  
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed,Bluetooth,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: No Yes
Remote Control Type:   Optional wired, IR wireless, Bluetooth or Wi-Fi
Connections (extended): HDMI Out (type D) Mini (Type-C) HDMI, USB Micro-B (USB 2.0), External 3.5mm Stereo Mic Jack
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 LP-E17
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeble
Batteries Included: 1 x Proprietary D-LI106 Lithium-ion rechargeable 1 x Proprietary LP-E17 Lithium-ion rechargeble
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
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.