| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: | ||
| Successor: | ||
| General | ||
| Model Number: | GX-20 | sd Quattro H |
| Alternate Model Number(s): | ||
| Camera Format: | Pro SLR | Compact System Camera |
| Currently Manufactured: | No | Yes |
| Retail Price: | $1399.95 | $1200.00 |
| Street Price: | $1,199.00 | |
| Date Available: | 2008-03-30 | 2017-01-15 |
| Tripod Mount: | Yes | Yes |
| Weight: | 25.2 oz (714 g) | 22.4 oz (635 g) |
| Size: |
5.6 x
4.0 x
2.8 in. (142 x 102 x 70 mm) |
5.8 x
3.7 x
3.6 in. (147 x 95 x 91 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Foveon X3 Quattro | |
| Effective Megapixels: | 14.6 | 25.6 |
| Sensor Format: | APS-C | APS-H |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 476.14mm2 (26.60mm x 17.90mm) |
| Approximate Pixel Pitch: | 5.07 microns | 4.30 microns |
| Focal Length Multiplier: | 1.5x | 1.3x |
| Aspect Ratio: | 3:2 | 3:2 |
| Color Filter Type: | RGBG | Full Color |
| Anti Aliasing Filter: | Fixed | Not needed |
| 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) |
6192 x 4128
(25.6 MP,
3:2), 5504 x 4128 (22.7 MP, 4:3), 6192 x 3480 (21.5 MP, 16:9), 4128 x 4128 (17.0 MP, 1:1), 5152 x 4128 (21.3 MP, 5:4), 6192 x 2648 (16.4 MP, Other), 8768 x 5840 (51.2 MP, 3:2), 7792 x 5840 (45.5 MP, 4:3), 8768 x 4928 (43.2 MP, 16:9), 5840 x 5840 (34.1 MP, 1:1), 8768 x 3752 (32.9 MP, Other), 7296 x 5840 (42.6 MP, 5:4) |
| Image File Format: | JPEG (EXIF 2.21), RAW (.PEF, .DNG), 14-bit | JPEG (EXIF 2.3), Lossless compressed 14-bit X3F or Uncompressed 12-bit DNG, RAW(X3F)+JPEG |
| Continuous-mode frames/second: | n/a | n/a |
| 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) | Sigma SA bayonet |
| Lens: | n/a | n/a |
| Focal Length (35mm equivalent): | ||
| Focal Length (actual): | ||
| Zoom Ratio: | ||
| Aperture Range: | ||
| Integrated ND Filter: | No | No |
| Normal Focus Range: | ||
| Macro Focus Range: | ||
| Filter Thread: | n/a | n/a |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | No | No |
| Digital Zoom: | No | |
| Digital Zoom Values: | n/a | |
| Auto Focus | ||
| Auto Focus: | Yes | Yes |
| Auto Focus Type: | 11-point TTL phase-matching (SAFOX VIII) | Hybrid Phase/Contrast Detect AF: 9 points select mode, Free move mode (It is possible to change the size of Focus Frame to Spot, Regular and Large), Face Detection AF Mode |
| Auto Focus Assist Light? | Yes | Yes |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | Optical / LCD | EVF / LCD |
| Viewfinder Type: | SLR type; eye-level pentaprism | EVF: 2,360K-dot LCD, 100% coverage, 0.96x magnification, 21mm eyepoint, -4 to +2 diopter |
| Focus Peaking: | No | Yes |
| EVF Resolution: | n/a | 2,360,000 dots |
| Viewfinder Magnification (35mm equivalent): | 0.74x | |
| Viewfinder Magnification (nominal/claimed): | 0.96x | |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 2.7 | 3.0 |
| Rear Display Resolution: | 230,000 dots | 1,620,000 dots |
| 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 | No |
| Exposure | ||
| Maximum ISO (native): | 3200 | 6400 |
| Minimum ISO (native): | 100 | 100 |
| ISO Settings: | Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) | Auto, 100-6400 in 1/3 EV steps; Auto has programmable High/Low limits |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature | Auto, Auto (Lighting Source Priority), Daylight, Shade, Overcast, Incandescent, Fluorescent, Color Temperature, Flash, Custom 1/2/3 |
| Shutter Speed Range: | 1/4000 - 30 sec | 1/4000 - 30 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 | Evaluative, center-weighted average, spot |
| 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 | Color modes: Standard, Vivid, Neutral, Portrait, Landscape, Cinema, Sunset Red, Forest Green, FOV Classic Blue, FOV Classic Yellow, Monochrome |
| Self Timer: | 2 or 12 seconds | 2 or 10 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 | n/a |
| Flash Guide Number (ISO 100): | n/a | n/a |
| Flash Range Description: | Depends on lens | n/a |
| Max Flash Sync: | 1/180 | 1/180 |
| Flash Exposure Compensation: | +/- 3.0 EV in 0.3EV steps | |
| External Flash Connection: | Hot Shoe, X-Sync Socket | Hot Shoe, PC Socket |
| Built-In Wireless Flash Control: | No | |
| Image Storage | ||
| Usable Memory Types: | SD / SDHC | SD / SDHC / SDXC |
| UHS Support: | ||
| Other Memory: | ||
| Dual Card Slots: | No | No |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | RAW (.PEF, .DNG), 14-bit | Lossless compressed 14-bit X3F or Uncompressed 12-bit DNG, RAW(X3F)+JPEG |
| 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 3.0 Super Speed |
| PictBridge Compliant: | Yes | No |
| DPOF Compliant: | Yes | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Wired or IR | Optional wired (Cable Release Switch CR-3) |
| Connections (extended): | DC input, wired remote | Mini (Type-C) HDMI |
| 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): | ||
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | ||
| RAW shooting speed in burst mode (fps): | 4.4 | |
| Buffer size for RAW shooting in burst mode (frames): | 8 | |
| 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): | ||
| Battery Life, Still (CIPA Rating OVF/EVF): | ||
| Battery Life, Video: | ||
| Battery Form Factor: | Proprietary | Proprietary BP-61 |
| Usable Battery Types: | Lithium-ion rechargeable | Lithium-ion rechargeable |
| Batteries Included: | 1 x Proprietary Lithium-ion rechargeable | 1 x Proprietary BP-61 Lithium-ion rechargeable |
| Battery Charger Included (dedicated charger or AC/USB adapter): | Yes | Yes |
| Dedicated Battery Charger Included: | Yes | |
| Internal Charging Supported: | No | |
| Software | ||
| Included Software: | SIGMA Photo Pro Download | |
| OS Compatibility: | Windows, Mac OS | |
| Miscellaneous | ||
| Notes & Features: | ||
