• 35mm 858.0mm2
  • 24.6 megapixels
  • ISO 100 - 25,600
  • 35mm 861.6mm2
  • 50.1 megapixels
  • ISO 100 - 32,000
  • Detailed specifications
  • Sigma fp
  • Sony Alpha ILCE-A1
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Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: fp A1
Alternate Model Number(s):   ILCE-1
Camera Format: Compact System Camera Compact System Camera
Currently Manufactured: Yes Yes
Retail Price: $1899.00 $6500.00
Street Price: $1,632.33 $6,498.00
Date Available: 2019-10-25 2021-03-01
Tripod Mount: Yes Yes
Weight: 14.9 oz (422 g)
includes batteries
26.0 oz (737 g)
includes batteries
Size: 4.4 x 2.8 x 1.8 in.
(113 x 70 x 45 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: 24.6 50.1
Sensor Format: 35mm 35mm
Sensor size: 858.01mm2 (35.90mm x 23.90mm) 861.6mm2 (35.90mm x 24.00mm)
Approximate Pixel Pitch: 5.98 microns 4.16 microns
Focal Length Multiplier: 1.0x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: Bayer RGBG
Anti Aliasing Filter: None None
Self-Cleaning: No Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No Yes
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 6000 x 4000 (24.0 MP, 3:2),
4240 x 2392 (10.1 MP, Other),
3008 x 2000 (6.0 MP, 3:2),
6000 x 3376 (20.3 MP, 16:9),
4240 x 2392 (10.1 MP, Other),
3008 x 1688 (5.1 MP, 16:9),
6000 x 2576 (15.5 MP, Other),
4240 x 1824 (7.7 MP, Other),
3008 x 1288 (3.9 MP, Other),
5664 x 4000 (22.7 MP, Other),
4000 x 2832 (11.3 MP, Other),
2832 x 2000 (5.7 MP, Other),
5344 x 4000 (21.4 MP, Other),
3776 x 2832 (10.7 MP, 4:3),
2672 x 2000 (5.3 MP, Other),
4672 x 4000 (18.7 MP, Other),
3312 x 2832 (9.4 MP, Other),
2336 x 2000 (4.7 MP, Other),
4000 x 4000 (16.0 MP, 1:1),
2832 x 2832 (8.0 MP, 1:1),
2000 x 2000 (4.0 MP, 1:1)
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 2.3), RAW (lossless compressed DNG (12 or 14 bit)), RAW+JPEG JPEG, HEIF, Compressed RAW, Lo, RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Continuous-mode frames/second: 18.0 30.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 3840x2160 (30p/​25p/​24p)
1920x1080 (120p/​100p/​60p/​50p/​30p/​25p/​24p)
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: CinemaDNG (8/10/12-bit) / MOV H.264( ALL-I /GOP) with Linear PCM stereo audio (48KHz, 16-bit) 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: 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: L Mount Sony E
Lens: n/a n/a
Focal Length (35mm equivalent):    
Focal Length (actual):    
Zoom Ratio:    
Aperture Range:    
Integrated ND Filter: 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
Digital Zoom Values:   Up to 4x; up to 2x Clear Image Digital Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect AF: Auto, 49-points selection mode, Free Movement mode, Face / Eye Detection AF mode, Tracking AF mode 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? No Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: No / LCD EVF / LCD
Viewfinder Type: Optional LCD View Finder LVF-11 can be attached to rear LCD 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: Yes 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: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.2 3.0
Rear Display Resolution: 2,100,000 dots 1,440,000 dots (360,000 px)
Touchscreen: Yes Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom:    
Top Deck Display: No No
Exposure
Maximum ISO (native): 25600 32000
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-25600, expandable to ISO 6, 12, 25, 50, 51200, 102400 AUTO, ISO 100 - 32000, expandable to ISO 50 - 102400
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Auto (Lighting Source Priority), Daylight, Shade, Overcast, Incandescent, Fluorescent, Color Temperature, Flash, Custom 1/2/3 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: 1/8000 - 30 sec 1/32000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: Evaluative, center-weighted average, 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: Color modes: Standard, Vivid, Neutral, Portrait, Landscape, Cinema, Teal & Orange, Sunset Red, Forest Green,FOV Classic Blue, FOV Classic Yellow, Monochrome; Fill Light, Shading Correction, HDR shooting 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 10 seconds 2, 5, 10; 3/5 shots after 2/5/10 seconds
Time Lapse (intervalometer): Yes  
High Resolution Composite: No No
Flash
Built-in Flash: No No
Flash Modes: S-TTL automatic light control, Manual, Wireless flash, Multi-emission; Red-eye effect reduction, Slow synchronization, 2nd Curtain Synchronization 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: n/a n/a
Max Flash Sync: 1/30 (1/15 in 14-bit mode) 1/400s (1/500s APS-C crop mode)
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe Unit HU-11 (supplied) Multi Interface Hot Shoe with Digital Audio Interface, Sync Terminal
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC / CFexpress
UHS Support: UHS-II UHS-II
Other Memory:   2x CFexpress Type A+SD UHS-II
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (lossless compressed DNG (12 or 14 bit)), RAW+JPEG RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Movie File Format: CinemaDNG (8/10/12-bit) / MOV H.264( ALL-I /GOP) with Linear PCM stereo audio (48KHz, 16-bit) 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: Yes Yes
Headphone Jack: No Yes
External Connections: USB 3.0 Super Speed USB 2.0 High Speed,USB 3.0 Super Speed,Ethernet,Bluetooth,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional wired (Cable Release CR-41) Optional via IR, USB, Ethernet or Wi-Fi/Bluetooth
Connections (extended): USB Type-C (USB3.1 Gen1), Micro HDMI (Type D), 3.5mm stereo mic/remote jack 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): 18.0 30.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 12 165
RAW shooting speed in burst mode (fps): 18.0 20.0
Buffer size for RAW shooting in burst mode (frames): 12 155
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 BP-51 Proprietary
Usable Battery Types: Lithium-ion rechargeable NP-FZ100 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary BP-51 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: No Yes
Internal Charging Supported: Yes 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: