• 1/2.35 inch 27.3mm2
  • 8.0 megapixels
  • 36.00mm - 180.00mm (35mm eq.)
  • 1/2.33 inch 28.2mm2
  • 14.1 megapixels
  • 24.00mm - 480.00mm (35mm eq.)
  • Detailed specifications
  • Pentax Optio M50
  • Panasonic Lumix DMC-ZS20
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Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: M50 ZS20
Alternate Model Number(s):   TZ30
Camera Format: Ultra Compact Compact
Currently Manufactured: No No
Retail Price: $229.95 $299.99
Street Price: $139.95 $217.47
Date Available: 2008-03-30 2012-03-15
Tripod Mount: Yes Yes
Weight: 4.1 oz (116 g) 7.3 oz (207 g)
includes batteries
Size: 3.7 x 2.2 x 0.9 in.
(94 x 56 x 23 mm)
4.1 x 2.3 x 1.1 in.
(105 x 59 x 28 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:    
Effective Megapixels: 8.0 14.1
Sensor Format: 1/2.35 inch 1/2.33 inch
Sensor size: 27.2556mm2 (6.03mm x 4.52mm) 28.198mm2 (6.13mm x 4.6mm)
Approximate Pixel Pitch: 1.85 microns 1.42 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3 4:3
Color Filter Type:   RGBG
Anti Aliasing Filter:    
Self-Cleaning: No No
Sensor shift image stabilization: No 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: 3264 x 2448 (8.0 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
2304 x 1728 (4.0 MP, 4:3),
2048 x 1536 (3.1 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3),
1024 x 768 (0.8 MP, 4:3),
640 x 480 (0.3 MP, 4:3)
4320 x 3240 (14.0 MP, 4:3),
4320 x 2880 (12.4 MP, 3:2),
4320 x 2432 (10.5 MP, 16:9),
3648 x 2736 (10.0 MP, 4:3),
3648 x 2432 (8.9 MP, 3:2),
3648 x 2056 (7.5 MP, Other),
3072 x 2304 (7.1 MP, 4:3),
3072 x 2048 (6.3 MP, 3:2),
3072 x 1728 (5.3 MP, 16:9),
2560 x 1920 (4.9 MP, 4:3),
2560 x 1712 (4.4 MP, 3:2),
2560 x 1440 (3.7 MP, 16:9),
2048 x 1536 (3.1 MP, 4:3),
2048 x 1360 (2.8 MP, Other),
1920 x 1080 (2.1 MP, 16:9),
640 x 480 (0.3 MP, 4:3),
3232 x 3232 (10.4 MP, 1:1),
2736 x 2736 (7.5 MP, 1:1),
2304 x 2304 (5.3 MP, 1:1),
1920 x 1920 (3.7 MP, 1:1),
1536 x 1536 (2.4 MP, 1:1),
480 x 480 (0.2 MP, 1:1),
640 x 424 (0.3 MP, Other),
640 x 360 (0.2 MP, 16:9)
Image File Format: JPEG (EXIF 2.2) JPEG (EXIF v2.3), MPO
Continuous-mode frames/second: n/a 10.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30/​15)
320x240 (30/​15)
1920x1080 (60p/​60i/​30p)
1280x720 (60p/​30p)
640x480 (30p)
320x240 (220p)
Movie File Format: AVI (MotionJPEG) AVCHD or MP4 with stereo audio, Motion JPEG with no sound for High Speed video
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes No
Video Usable as Viewfinder:
HD Video Out: Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a n/a
Lens: Pentax zoom lens, 8 elements, 6 groups (4 aspherical elements) LEICA DC VARIO-ELMAR, 12 elements in 10 groups, 3 Aspherical, 2 ED elements
Focal Length (35mm equivalent): 36 - 180mm 24 - 480mm
Focal Length (actual): 6.3 - 31.5mm 4.3 - 86mm
Zoom Ratio: 5.00x 20.00x
Aperture Range: f/3.5 (wide) / f/5.6 (tele) - ??? f/3.3 - 8.0 (W) / f/6.4 - 8.0 (T) Multistage Iris Diaphram
Integrated ND Filter: No No
Normal Focus Range: 40 cm to Infinity
15.7 in to Infinity
50 cm to Infinity
19.7 in to Infinity
Macro Focus Range: 10 - 100 cm
3.9 - 39.4 in
3 cm to Infinity
1.2 in to Infinity
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 5.1x Up to 4x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 9-point TTL contrast detection Contrast Detect: Face / AF Tracking / 23pt / 1pt / Spot / Touch Area
Auto Focus Assist Light? No Yes
Manual Focus: Yes No
Viewfinder
Viewfinder: LCD LCD
Viewfinder Type:    
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: No No
Rear Display: Yes Yes
Rear Display Size (inches): 2.5 3.0
Rear Display Resolution: 230,000 dots 460,000 dots
Touchscreen: No Yes
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 8.0x 16.0x
Top Deck Display:
Exposure
Maximum ISO (native):    
Minimum ISO (native):    
ISO Settings: Auto (64 - 3200); 6400 only available in Digital SR mode Auto, iISO, 100, 200, 400, 800, 1600, 3200; High Sensitivity mode (ISO 1600-6400)
Auto ISO Mode: No Yes
White Balance Settings: Auto, daylight, shade, tungsten, fluorescent, custom Auto, Daylight, Cloudy, Shade, Incandescent, White Set
Shutter Speed Range: 1/2000 - 4 sec 1/2000 - 60 sec
Bulb Mode: No No
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: TTL multi-segment, Center-weighted, Spot Intelligent Multiple, Center Weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: No Yes
Shutter Priority: No Yes
Full Manual Exposure: No Yes
Creative Exposure Modes: Night Scene, Landscape, Flower, Natural Skin Tone, Portrait, Surf & Snow, Sport, Digital SR (5M), Kids, Pet, Food, Panorama, Digital Wide Angle (5M) Portrait, Soft Skin, Scenery, Panorama Shot, Sports, Night Portrait, Night Scenery, Hand Held Night Shot, HDR, Food, Baby1, Baby2, Pet, Sunset, High Sensitivity, Glass Through, Underwater, High Speed Video; 3D Photo; Creative Control (Expressive, Retro, High Key, Low Key, Sepia, Dynamic Monochrome, High Dynamic, Toy Effect, Miniature, Soft Focus)
Self Timer: 2 or 10 seconds 2 or 10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto flash, flash on, flash off, red-eye reduction Auto, Auto/Red-eye Reduction, Forced On, Slow Sync./Red-eye Reduction, Forced Off
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: 14’ (wide, auto ISO), 9.2’ (tele, auto ISO) 0.6 - 6.4m (Wide/ISO Auto), 1.0 - 3.3m (Tele/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 SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No No
Uncompressed Format:    
Movie File Format: AVI (MotionJPEG) AVCHD or MP4 with stereo audio, Motion JPEG with no sound for High Speed video
Included Memory: 51.1 MB 12.0 MB
Included Memory Type: Internal Internal
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: No Yes
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: No No
Remote Control Type:    
Connections (extended): DC Input Mini HDMI
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.66
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?
JPEG shooting speed in burst mode (fps, max resolution):   10.0
Buffer size for JPEG shooting in burst mode (frames, max resolution):   10
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):   0.26 seconds
Shutter lag (full AF, tele):   0.24 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):   0.018 seconds
Shutter Lag (notes):    
Startup Time:   2.4 seconds
Play -> Record Time:   1.1 seconds
Flash cycle time, full power:   5.2 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 210 shots 260 shots
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI78 Proprietary
Usable Battery Types: Lithium-ion rechargeable 3.6V, 895mAh Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI78 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: TBA LUMIX Map Tool, PHOTOfunSTUDIO 8.1 Premium Edition, Adobe Reader
OS Compatibility: TBA  
Miscellaneous
Notes & Features: Optical Image Stabilization, Touchscreen LCD, Full HD Movies, Built-in GPS, High-speed Burst modes. Available in in black, red, white, or silver.