- 35mm 861.6mm2
- 50.1 megapixels
- ISO 100 - 32,000
- Go in depth with our full Sony A1 Review.
- See real-world photos taken with the A1.
- Compare Sony A1 image quality against competitors.
Links | ||
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Prices: | Compare Prices | |
Manufacturer URL: | Manufacturer website | Manufacturer website |
Predecessor: | ||
Successor: | ||
General | ||
Model Number: | GX-20 | A1 |
Alternate Model Number(s): | ILCE-1 | |
Camera Format: | Pro SLR | Compact System Camera |
Currently Manufactured: | No | Yes |
Retail Price: | $1399.95 | $6500.00 |
Street Price: | $5,498.00 | |
Date Available: | 2008-03-30 | 2021-03-01 |
Tripod Mount: | Yes | Yes |
Weight: | 25.2 oz (714 g) |
26.0 oz
(737 g)
includes batteries |
Size: |
5.6 x
4.0 x
2.8 in. (142 x 102 x 70 mm) |
5.1 x
3.8 x
3.2 in. (129 x 97 x 81 mm) |
Waterproof: | No | No |
Waterproof Depth: | n/a | n/a |
Image Sensor | ||
Sensor Type: | CMOS | CMOS |
Sensor Manufacturer: | Sony | |
Effective Megapixels: | 14.6 | 50.1 |
Sensor Format: | APS-C | 35mm |
Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 861.6mm2 (35.90mm x 24.00mm) |
Approximate Pixel Pitch: | 5.07 microns | 4.16 microns |
Focal Length Multiplier: | 1.5x | 1.0x |
Aspect Ratio: | 3:2 | 3:2 |
Color Filter Type: | RGBG | RGBG |
Anti Aliasing Filter: | Fixed | None |
Self-Cleaning: | Yes | Yes |
Sensor shift image stabilization: | Yes | Yes |
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) |
8640 x 5760
(49.8 MP,
3:2), 5616 x 3744 (21.0 MP, 3:2), 4320 x 2880 (12.4 MP, 3:2), 7680 x 5760 (44.2 MP, 4:3), 4992 x 3744 (18.7 MP, 4:3), 3840 x 2880 (11.1 MP, 4:3), 8760 x 4864 (42.6 MP, Other), 5616 x 3160 (17.7 MP, 16:9), 4320 x 2432 (10.5 MP, 16:9), 5760 x 5760 (33.2 MP, 1:1), 3744 x 3744 (14.0 MP, 1:1), 2880 x 2880 (8.3 MP, 1:1) |
Image File Format: | JPEG (EXIF 2.21), RAW (.PEF, .DNG), 14-bit | JPEG, HEIF, Compressed RAW, Lo, RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF |
Continuous-mode frames/second: | n/a | 30.0 |
Video Capture | ||
Can take movies: | No | Yes |
Movie Resolution: |
7680x4320 (30p/25p/24p)
3840x2160 (120p/100p/60p/50p/30p/25p/24p) 1920x1080 (60p/50p/30p/25p/24p) 1920x1080 (1p/2p/3p/4p/6p/8p/12p/15p/25p/30p/50p/60p/100p/120p/200p/240p) |
|
Movie File Format: | XAVC S (Long GOP, H.264 MP4); XAVC HS (Long GOP, H.265 HEVC); XAVC S-I (All-Intra, H.264 MP4) | |
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) | Sony E |
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 | Yes |
Digital Zoom Values: | n/a | Up to 4x; up to 2x Clear Image Digital Zoom |
Auto Focus | ||
Auto Focus: | Yes | Yes |
Auto Focus Type: | 11-point TTL phase-matching (SAFOX VIII) | Fast Hybrid 4D AF: 759 points (PDAF), 425 points (contrast-detection AF); Wide (759 points (PDAF), 425 points (CDAF))/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot/Tracking (Wide/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot); Touch AF |
Auto Focus Assist Light? | Yes | Yes |
Manual Focus: | Yes | Yes |
Viewfinder | ||
Viewfinder: | Optical / LCD | EVF / LCD |
Viewfinder Type: | SLR type; eye-level pentaprism | EVF: 0.64" 9.44M-dot QXGA color OLED, 100% coverage, 0.90x magnification, 60/120/240fps refresh rates, -4.0 to +3.0 diopter, 25mm eyepoint from the eyepiece lens |
Focus Peaking: | No | Yes |
EVF Resolution: | n/a | 9,437,184 dots (3,145,728 pixels) |
Viewfinder Magnification (35mm equivalent): | 0.90x | |
Viewfinder Magnification (nominal/claimed): | 0.90x | |
Display | ||
Eye-level Viewfinder: | Yes | Yes |
Rear Display: | Yes | Yes |
Rear Display Size (inches): | 2.7 | 3.0 |
Rear Display Resolution: | 230,000 dots | 1,440,000 dots (360,000 px) |
Touchscreen: | No | Yes |
Articulating Screen: | No | Yes |
Tilt Swivel Screen: | No | No |
Selfie Screen: | No | No |
Max Playback Zoom: | 32.0x | |
Top Deck Display: | Yes | No |
Exposure | ||
Maximum ISO (native): | 3200 | 32000 |
Minimum ISO (native): | 100 | 100 |
ISO Settings: | Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) | AUTO, ISO 100 - 32000, expandable to ISO 50 - 102400 |
Auto ISO Mode: | Yes | Yes |
White Balance Settings: | Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature | Auto (with Priority), Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Underwater, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation) |
Shutter Speed Range: | 1/4000 - 30 sec | 1/32000 - 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 | 1200-zone Evaluative Multi-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., Highlight |
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 | Picture Effect: Posterization (Color), Posterization (B/W), Pop Color, Retro Photo, Partial Color (R/G/B/Y), High Contrast Monochrome, Toy Camera (Normal / Cool / Warm / Green / Magenta), Soft High-key; HDR: Auto Exposure Difference, Exposure difference Level (1-6 EV at 1.0 EV step) |
Self Timer: | 2 or 12 seconds | 2, 5, 10; 3/5 shots after 2/5/10 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 | Flash off, Auto flash, Fill-flash, Slow Sync., Rear Sync., Hi-speed Sync, Wireless; Red-eye reduction: On/Off |
Flash Guide Number (ISO 100): | n/a | n/a |
Flash Range Description: | Depends on lens | n/a |
Max Flash Sync: | 1/180 | 1/400s (1/500s APS-C crop mode) |
Flash Exposure Compensation: | +/- 3.0 EV in 0.3EV steps | |
External Flash Connection: | Hot Shoe, X-Sync Socket | Multi Interface Hot Shoe with Digital Audio Interface, Sync Terminal |
Built-In Wireless Flash Control: | No | |
Image Storage | ||
Usable Memory Types: | SD / SDHC | SD / SDHC / SDXC / CFexpress |
UHS Support: | UHS-II | |
Other Memory: | 2x CFexpress Type A+SD UHS-II | |
Dual Card Slots: | No | Yes |
RAW Capture Support: | Yes | Yes |
Uncompressed Format: | RAW (.PEF, .DNG), 14-bit | RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF |
Movie File Format: | XAVC S (Long GOP, H.264 MP4); XAVC HS (Long GOP, H.265 HEVC); XAVC S-I (All-Intra, H.264 MP4) | |
Included Memory: | No memory included | No memory included |
Included Memory Type: | ||
Connectivity | ||
Built-In Wi-Fi: | No | Yes |
NFC: | No | Yes |
Bluetooth: | No | Yes |
Built-In GPS: | No | No |
Microphone Jack: | No | Yes |
Headphone Jack: | No | Yes |
External Connections: | USB 2.0 High Speed | USB 2.0 High Speed,USB 3.0 Super Speed,Ethernet,Bluetooth,WiFi |
PictBridge Compliant: | Yes | No |
DPOF Compliant: | Yes | Yes |
Remote Control: | Yes | Yes |
Remote Control Type: | Wired or IR | Optional via IR, USB, Ethernet or Wi-Fi/Bluetooth |
Connections (extended): | DC input, wired remote | USB-C (USB 3.2 10Gbps), Type-D Micro HDMI, 1000Base-T Ethernet, 3.5mm Microphone and Headphone Jacks, Sync Terminal |
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): | 30.0 | |
Buffer size for JPEG shooting in burst mode (frames, max resolution): | 165 | |
RAW shooting speed in burst mode (fps): | 20.0 | |
Buffer size for RAW shooting in burst mode (frames): | 155 | |
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): | 530 shots | |
Battery Life, Still (CIPA Rating OVF/EVF): | 430 shots | |
Battery Life, Video: | 150 minutes | |
Battery Form Factor: | Proprietary | Proprietary |
Usable Battery Types: | Lithium-ion rechargeable | NP-FZ100 Lithium-ion rechargeable |
Batteries Included: | 1 x Proprietary Lithium-ion rechargeable | 1 x Proprietary NP-FZ100 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: | Capture One Express (for Sony) free download; Sony Imaging Edge Remote, Viewer and Edit | |
OS Compatibility: | Windows, macOS | |
Miscellaneous | ||
Notes & Features: |