• APS-C 369.7mm2
  • 14.6 megapixels
  • ISO 100 - 3200
  • APS-C 369.0mm2
  • 20.9 megapixels
  • ISO 100 - 51,200
  • Detailed specifications
  • Samsung GX-20
  • Nikon Z 30
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: GX-20 Z 30
Alternate Model Number(s):   Z30
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $1399.95 $709.95
Street Price:   $696.95
Date Available: 2008-03-30 2022-07-15
Tripod Mount: Yes Yes
Weight: 25.2 oz (714 g) 13.8 oz (390 g)
includes batteries
Size: 5.6 x 4.0 x 2.8 in.
(142 x 102 x 70 mm)
5.0 x 2.9 x 2.3 in.
(128 x 74 x 60 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:    
Effective Megapixels: 14.6 20.9
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 368.95mm2 (23.50mm x 15.70mm)
Approximate Pixel Pitch: 5.07 microns 4.22 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed None
Self-Cleaning: Yes No
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 68  
DxO Color Depth Score (bits): 23.1  
DxO Dynamic Range Score (evs): 11.2  
DxO Maximum Effective ISO Score (iso): 714  
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)
5568 x 3712 (20.7 MP, 3:2),
4176 x 2784 (11.6 MP, 3:2),
2784 x 1856 (5.2 MP, 3:2),
5568 x 3128 (17.4 MP, 16:9),
4176 x 2344 (9.8 MP, 16:9),
2784 x 1560 (4.3 MP, 16:9),
3712 x 3712 (13.8 MP, 1:1),
2784 x 2784 (7.8 MP, 1:1),
1856 x 1856 (3.4 MP, 1:1)
Image File Format: JPEG (EXIF 2.21), RAW (.PEF, .DNG), 14-bit JPEG (EXIF 2.31), .NEF (RAW), 12 or 14 bit; RAW+JPEG
Continuous-mode frames/second: n/a 11.0
Video Capture
Can take movies: No Yes
Movie Resolution: 3840x2160 (30p/​25p/​24p)
1920x1080 (120p/​100p/​60p/​50p/​30p/​25p/​24p)
Movie File Format:   MOV, MP4 (Video: H.264/MPEG-4 AVC; Audio: Stereo Linear PCM, AAC)
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: No n/a
HD Video Out: No Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: Pentax K (KA/KAF/KAF2) Nikon Z
Lens: n/a Nikon Z DX 16-50mm f/3.5-6.3 VR
Focal Length (35mm equivalent):   24 - 75mm
Focal Length (actual):   16 - 50mm
Zoom Ratio:   3.10x
Aperture Range:   f/3.5 (wide) / f/6.3 (tele) - f/16
Integrated ND Filter: No No
Normal Focus Range:   20 cm to Infinity
7.9 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 46.0mm
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) Hybrid Phase/Contrast Detect AF with 209 PDAF points; Pinpoint, Single-Point, Dynamic-area AF, Wide-area AF (S/L), Wide-Are (L, People/Animals), Auto-area AF, Auto-area AF (People/Animals); Face and Eye-detect AF
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD No / LCD
Viewfinder Type: SLR type; eye-level pentaprism  
Focus Peaking: No Yes
EVF Resolution: n/a 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 3.0
Rear Display Resolution: 230,000 dots 1,036,800 dots (345,600 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 32.0x  
Top Deck Display: Yes No
Exposure
Maximum ISO (native): 3200 51200
Minimum ISO (native): 100 100
ISO Settings: Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) Auto, ISO 100 - 51200, expandable to 204,800
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature Auto (2 types), Cloudy, Shade, Direct Sunlight, Flash, Fluorescent (7 types), Incandescent, Kelvin Color Temperature (2,500K-10,000K), Preset manual; Fine tuning available.
Shutter Speed Range: 1/4000 - 30 sec 1/4000 - 900 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 Matrix metering; Center-weighted (weight of approximately 75% given to 8mm circle in center of frame or weighting can be based on average of entire frame; Spot: meters circle with diameter of about 3.5mm (about 2.5% of frame) centered on selected focus point; Highlight-weighted
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 Custom: U1, U2, U3; Scene Modes: Autumn Colors, Beach / Snow, Blossom, Candlelight, Child, Close-up, Dusk / Dawn, Food, Landscape, Night Landscape, Night Portrait, Party / Indoor, Pet Portrait, Portrait, Sports, Sunset; Special Effects: Night Vision, Super Vivid, Pop, Photo Illustration, Toy Camera Effect, Miniature Effect, Selective Color, Silhouette, High Key, Low Key
Self Timer: 2 or 12 seconds 2/5/10/20s; 1-9 exposures at intervals of 0.5, 1, 2, or 3 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync, Wireless Fill flash, Red-eye reduction, Slow sync, Red-eye reduction with slow sync, Rear-curtain sync, Auto, Auto with red-eye reduction, Auto slow sync, Auto slow sync with red-eye reduction, Flash off; Auto FP High-Speed sync supported
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: Depends on lens n/a
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:   No
Image Storage
Usable Memory Types: SD / SDHC SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (.PEF, .DNG), 14-bit .NEF (RAW), 12 or 14 bit; RAW+JPEG
Movie File Format:   MOV, MP4 (Video: H.264/MPEG-4 AVC; Audio: Stereo Linear PCM, AAC)
Included Memory: No memory included No memory included
Included Memory Type:    
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,USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Wired or IR Wi-Fi/Bluetooth
Connections (extended): DC input, wired remote Type C USB connector (SuperSpeed USB), Micro (Type-D) HDMI, 3.5mm Stereo Microphone Jack (plug-in power supported)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):    
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):   11.0
Buffer size for JPEG shooting in burst mode (frames, max resolution):    
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):    
Shutter lag (full AF, tele):    
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):    
Shutter Lag (notes):    
Startup Time:    
Play -> Record Time:    
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   330 shots
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:   75 minutes
Battery Form Factor: Proprietary Proprietary EN-EL25
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary Lithium-ion rechargeable 1 x Proprietary EN-EL25 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: Yes
Software
Included Software:    
OS Compatibility:    
Miscellaneous
Notes & Features: