• 35mm 861.6mm2
  • 50.1 megapixels
  • ISO 100 - 32,000
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 25,600
  • Detailed specifications
  • Sony Alpha ILCE-A1
  • OM System OM-1
Links
Prices: Compare Prices  
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: A1 OM-1
Alternate Model Number(s): ILCE-1  
Camera Format: Compact System Camera Compact System Camera
Currently Manufactured: Yes Yes
Retail Price: $6500.00 $2199.99
Street Price: $5,498.00  
Date Available: 2021-03-01 2022-03-01
Tripod Mount: Yes Yes
Weight: 26.0 oz (737 g)
includes batteries
18.0 oz (511 g)
includes batteries
Size: 5.1 x 3.8 x 3.2 in.
(129 x 97 x 81 mm)
5.3 x 3.6 x 2.9 in.
(135 x 92 x 73 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS Live MOS
Sensor Manufacturer: Sony  
Effective Megapixels: 50.1 20.4
Sensor Format: 35mm 4/3
Sensor size: 861.6mm2 (35.90mm x 24.00mm) 226.2mm2 (17.40mm x 13.00mm)
Approximate Pixel Pitch: 4.16 microns 3.36 microns
Focal Length Multiplier: 1.0x 2.0x
Aspect Ratio: 3:2 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: None None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: Yes Yes
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 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)
5184 x 3888 (20.2 MP, 4:3),
1024 x 786 (0.8 MP, Other),
10368 x 7776 (80.6 MP, 4:3),
8160 x 6120 (49.9 MP, 4:3),
5760 x 4320 (24.9 MP, 4:3)
Image File Format: JPEG, HEIF, Compressed RAW, Lo, RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF JPEG, 12-bit lossless compressed RAW (.ORF), RAW + JPEG
Continuous-mode frames/second: 30.0 120.0
Video Capture
Can take movies: Yes 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)
4096x2160 (60p/​50p/​30p/​25p/​24p)
3840x2160 (60p/​50p/​30p/​25p/​24p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
4096x2160 (15p/​12p/​8p/​6p/​3p)
3840x2160 (25p/​24p/​15p/​12p/​8p/​6p/​3p)
1920x1080 (60p/​50p/​25p/​24p/​15p/​12p/​8p/​6p/​3p)
1280x720 (60p/​50p/​25p/​24p/​15p/​12p/​8p/​6p/​3p)
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) MOV (HEVC/H.265; MPEG-4 AVC/H.264 with stereo sound)
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sony E Micro Four Thirds
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: Yes Yes
Digital Zoom Values: Up to 4x; up to 2x Clear Image Digital Zoom 2x (3x in movie mode)
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 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 Hybrid Phase-detect/Contrast-detect AF, 1053 AF points, all cross-type; All target, group target (9-area or 5- area), single target, small target (9 point), Cross target (39 points), Middle target (63 points), Large target (165 points)
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD EVF / LCD
Viewfinder Type: 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 EVF; High-speed (120fps) low latency (6ms) 5.76M-dot LCD, 1.48x - 1.65x magnification, 100% coverage, 21mm eyepoint, -4 to +2 diopter, eye sensor
Focus Peaking: Yes Yes
EVF Resolution: 9,437,184 dots (3,145,728 pixels) 2,360,000 dots
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): 3.0 3.0
Rear Display Resolution: 1,440,000 dots (360,000 px) 1,620,000 dots (540,000 px)
Touchscreen: Yes Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom:   14.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 32000 25600
Minimum ISO (native): 100 200
ISO Settings: AUTO, ISO 100 - 32000, expandable to ISO 50 - 102400 AUTO ISO: LOW (approx. 80) - 25600 with customizable upper limit (200 - 102400); Manual ISO: Low (approx. 80, approx. 100) - 102400, 1/3 or 1 EV steps selectable
Auto ISO Mode: Yes Yes
White Balance Settings: Auto (with Priority), Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Underwater, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation) Auto, Sunny, Shadow, Cloudy, Incandescent, Fluorescent, Underwater, WB Flash, Custom WB (Kelvin), One-touch WB (4); WB Tuning: +/-7 steps along A-B / G-M axis
Shutter Speed Range: 1/32000 - 30 sec 1/32000 - 60 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 1200-zone Evaluative Multi-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., Highlight Digital ESP metering (324-area multi pattern metering), Center weighted average metering, Spot metering, Spot metering with highlight control, Spot metering with shadow control
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: 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) 3 Custom settings; Art Filter (Pop Art, Soft Focus, Pale & Light Color, Light Tone, Grainy Film, Pin Hole, Diorama, Cross Process, Gentle Sepia, Dramatic Tone, Key Line, Watercolor, Vintage, Partial Color, Bleach Bypass, Instant Film; Art Effect (Soft Focus Effect, Pin-Hole Effect, White Edge Effect, Frame Effect, Star Light Effect, Blur Effect, B&W Effect, Picture Tone, Shade Effect); Underwater Wide/Underwater Macro; HDR1/2; Live Bulb; Live Time; Live Composite; Live ND; Interval Shooting, Multiple Exposure; Focus Stacking; Focus Bracketing; High-Res Shot (handheld & tripod)
Self Timer: 2, 5, 10; 3/5 shots after 2/5/10 seconds 2, 10, Custom seconds
Time Lapse (intervalometer):    
High Resolution Composite: No 80.0 megapixels
Flash
Built-in Flash: No No
Flash Modes: Flash off, Auto flash, Fill-flash, Slow Sync., Rear Sync., Hi-speed Sync, Wireless; Red-eye reduction: On/Off Flash Auto (TTL), Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual 1/1 (FULL) - 1/64
Flash Guide Number (ISO 100): n/a 9.0 m / 29.5 ft.
Flash Range Description: n/a Bundled FL-LM3 flash has GN of 9m/ISO 100
Max Flash Sync: 1/400s (1/500s APS-C crop mode) 1/250
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Multi Interface Hot Shoe with Digital Audio Interface, Sync Terminal Hot Shoe, PC Sync Terminal
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: SD / SDHC / SDXC / CFexpress SD / SDHC / SDXC
UHS Support: UHS-II UHS-II
Other Memory: 2x CFexpress Type A+SD UHS-II Slot 1: UHS-II, Slot 2: UHS-II
Dual Card Slots: Yes Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF 12-bit lossless compressed RAW (.ORF), RAW + JPEG
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) MOV (HEVC/H.265; MPEG-4 AVC/H.264 with stereo sound)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: Yes No
Bluetooth: Yes No
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: Yes Yes
External Connections: USB 2.0 High Speed,USB 3.0 Super Speed,Ethernet,Bluetooth,WiFi USB 3.0 Super Speed,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional via IR, USB, Ethernet or Wi-Fi/Bluetooth Optional wired or via Wi-Fi
Connections (extended): USB-C (USB 3.2 10Gbps), Type-D Micro HDMI, 1000Base-T Ethernet, 3.5mm Microphone and Headphone Jacks, Sync Terminal Micro HDMI (Type-D), USB 3.0 Type C with Power Delivery, 3.5mm external mic jack, 3.5mm external headphone jack, 2.5mm wired remote jack
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): 30.0 120.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 165 92
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 90 minutes
Battery Form Factor: Proprietary Proprietary BLX-1
Usable Battery Types: NP-FZ100 Lithium-ion rechargeable 1720mAh Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FZ100 Lithium-ion rechargeable 1 x Proprietary BLX-1 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: Yes No
Software
Included Software: Capture One Express (for Sony) free download; Sony Imaging Edge Remote, Viewer and Edit OM Workspace v2
OS Compatibility: Windows, macOS  
Miscellaneous
Notes & Features: