| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: | ||
| Successor: | ||
| General | ||
| Model Number: | GX-20 | Df |
| Alternate Model Number(s): | ||
| Camera Format: | Pro SLR | SLR |
| Currently Manufactured: | No | Yes |
| Retail Price: | $1399.95 | $2999.95 |
| Street Price: | $2,746.95 | |
| Date Available: | 2008-03-30 | 2013-11-30 |
| Tripod Mount: | Yes | Yes |
| Weight: | 25.2 oz (714 g) |
34.7 oz
(983 g)
includes batteries, kit lens |
| Size: |
5.6 x
4.0 x
2.8 in. (142 x 102 x 70 mm) |
5.6 x
4.3 x
2.6 in. (144 x 110 x 67 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | ||
| Effective Megapixels: | 14.6 | 16.2 |
| Sensor Format: | APS-C | 35mm |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 860.4mm2 (36.00mm x 23.90mm) |
| Approximate Pixel Pitch: | 5.07 microns | 7.31 microns |
| Focal Length Multiplier: | 1.5x | 1.0x |
| 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 | 89 |
| DxO Color Depth Score (bits): | 23.1 | 24.6 |
| DxO Dynamic Range Score (evs): | 11.2 | 13.1 |
| DxO Maximum Effective ISO Score (iso): | 714 | 3,279 |
| 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) |
4928 x 3280
(16.2 MP,
3:2), 3696 x 2456 (9.1 MP, 3:2), 2464 x 1640 (4.0 MP, 3:2), 3200 x 2128 (6.8 MP, 3:2), 2400 x 1592 (3.8 MP, Other), 1600 x 1064 (1.7 MP, 3:2) |
| Image File Format: | JPEG (EXIF 2.21), RAW (.PEF, .DNG), 14-bit | JPEG, NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; RAW+JPEG; TIFF (RGB) |
| Continuous-mode frames/second: | n/a | 5.4 |
| Video Capture | ||
| Can take movies: | No | No |
| Movie Resolution: | ||
| Movie File Format: | ||
| 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 F |
| Lens: | n/a | AF-S NIKKOR 50mm f/1.8G Special Edition |
| Focal Length (35mm equivalent): | 50mm | |
| Focal Length (actual): | 50mm | |
| Zoom Ratio: | 1.00x | |
| Aperture Range: | f/1.8 - f/16; 7 diaphragm blades (circular) | |
| Integrated ND Filter: | No | No |
| Normal Focus Range: |
45 cm to Infinity 17.7 in to Infinity |
|
| Macro Focus Range: | ||
| Filter Thread: | n/a | 58.0mm |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | No | No |
| 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) | 39-point (9 cross type) TTL phase detection with 3D focus tracking via Nikon Multi-CAM 4800FX; Contrast-detect AF in Live View modes |
| Auto Focus Assist Light? | Yes | No |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | Optical / LCD | Optical / LCD |
| Viewfinder Type: | SLR type; eye-level pentaprism | SLR; eye-level pentaprism, fixed Type B BriteView Clear Matte Mark VIII focusing screen, 100% coverage, 0.7x magnification, 15mm eyepoint, -3 to +1 diopter |
| Focus Peaking: | No | No |
| EVF Resolution: | n/a | n/a |
| Viewfinder Magnification (35mm equivalent): | 0.70x | |
| Viewfinder Magnification (nominal/claimed): | 0.70x | |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 2.7 | 3.2 |
| 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 | |
| Top Deck Display: | Yes | Yes |
| Exposure | ||
| Maximum ISO (native): | 3200 | 12800 |
| Minimum ISO (native): | 100 | 100 |
| ISO Settings: | Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) | Auto, 100 - 12,800, plus down to 50 in Lo-1, up to 204,800 in Hi-4 |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature | Auto (2 types), Incandescent, Fluorescent (7 types), Direct Sunlight, Flash, Cloudy, Shade, Preset manual (up to 4), Color temperature (2500-10000K), all with fine-tuning |
| Shutter Speed Range: | 1/4000 - 30 sec | 1/4000 - 30 sec |
| Bulb Mode: | Yes | Yes |
| Exposure Compensation: | +/- 3.0EV in 0.3EV steps | +/- 3.0EV in 0.3EV steps |
| Metering Modes: | TTL open-aperture: 16-segment, Center-weighted, Spot | 2016-pixel 3D Color Matrix Metering III, Center-weighted (75% given to 8, 12, 15 or 20mm circle), Spot (4mm) centered on selected focus area |
| 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 | Built-in HDR mode |
| 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): | Yes | |
| High Resolution Composite: | No | No |
| Flash | ||
| Built-in Flash: | Yes | No |
| Flash Modes: | On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync, Wireless | Front curtain sync, slow sync, rear-curtain sync, red-eye reduction, red-eye reduction with slow sync, slow rear-curtain sync, 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 | 1/250 |
| Flash Exposure Compensation: | -3 to +1 EV in 0.3EV steps | |
| External Flash Connection: | Hot Shoe, X-Sync Socket | ISO 518 Hot Shoe (safety lock provided), PC Sync terminal |
| Built-In Wireless Flash Control: | ||
| 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, lossless compressed, compressed, or uncompressed; RAW+JPEG; TIFF (RGB) |
| Movie File Format: | ||
| 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 cable release, wired, wireless |
| Connections (extended): | DC input, wired remote | Type-C Mini HDMI, Accessory Terminal |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.54 | |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 0.54 | |
| Buffer size for RAW shooting in single shot mode (frames): | Unlimited | |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | 0.53 | |
| Camera penalizes early shutter press? | No | |
| JPEG shooting speed in burst mode (fps, max resolution): | 5.4 | |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | Unlimited | |
| RAW shooting speed in burst mode (fps): | 5.4 | |
| Buffer size for RAW shooting in burst mode (frames): | 29 | |
| RAW+JPEG shooting speed in burst mode (fps): | 5.4 | |
| Buffer Size for RAW+JPEG shooting in burst mode (frames): | 22 | |
| Shutter lag (full AF, wide/mid): | 0.27 seconds | |
| Shutter lag (full AF, tele): | ||
| Shutter lag (full AF, live view - DSLR): | 1.39 seconds | |
| Shutter lag (prefocused, live view - DSLR): | 0.233 seconds | |
| Shutter Lag (manual focus): | 0.079 seconds | |
| Shutter lag (full AF, with flash): | ||
| Shutter Lag (prefocused): | 0.054 seconds | |
| Shutter Lag (notes): | Full AF lag, wide-area mode, OVF = 0.493s Full AF lag, Live View = 1.388s Prefocused, Live View = 0.233s | |
| Startup Time: | 0.6 seconds | |
| Play -> Record Time: | 0.3 seconds | |
| Flash cycle time, full power: | ||
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | ||
| Battery Life, Still (CIPA Rating OVF/EVF): | 1400 shots | |
| Battery Life, Video: | ||
| Battery Form Factor: | Proprietary | Proprietary EN-EL14a |
| Usable Battery Types: | Lithium-ion rechargeable | Lithium-ion rechargeable |
| Batteries Included: | 1 x Proprietary Lithium-ion rechargeable | 1 x Proprietary EN-EL14a Lithium-ion rechargeable |
| Battery Charger Included (dedicated charger or AC/USB adapter): | Yes | Yes |
| Dedicated Battery Charger Included: | No | |
| Internal Charging Supported: | No | |
| Software | ||
| Included Software: | Nikon ViewNX 2 CD-ROM | |
| OS Compatibility: | ||
| Miscellaneous | ||
| Notes & Features: | Available in two-tone silver and black, or black. | |
