• APS-C 369.7mm2
  • 16.1 megapixels
  • ISO 100 - 16,000
  • Medium format 1,441.0mm2
  • 51.4 megapixels
  • ISO 100 - 12,800
  • Detailed specifications
  • Sony Alpha SLT-A37
  • Fujifilm GFX 50R
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: A37 GFX 50R
Alternate Model Number(s):    
Camera Format: SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $599.99 $4499.95
Street Price:   $4,598.50
Date Available: 2012-06-15 2018-10-25
Tripod Mount: Yes Yes
Weight: 25.6 oz (726 g)
includes batteries, kit lens
27.3 oz (775 g)
includes batteries
Size: 4.9 x 3.6 x 3.3 in.
(124 x 92 x 85 mm)
6.3 x 3.8 x 2.6 in.
(161 x 97 x 66 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 16.1 51.4
Sensor Format: APS-C Medium format
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 1441.02mm2 (43.80mm x 32.90mm)
Approximate Pixel Pitch: 4.82 microns 5.31 microns
Focal Length Multiplier: 1.5x 0.8x
Aspect Ratio: 3:2 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 75  
DxO Color Depth Score (bits): 23.3  
DxO Dynamic Range Score (evs): 12.9  
DxO Maximum Effective ISO Score (iso): 799  
Image Capture
Image Resolution: 4912 x 3264 (16.0 MP, 3:2),
4912 x 2760 (13.6 MP, 16:9),
3568 x 2368 (8.4 MP, Other),
3568 x 2000 (7.1 MP, 16:9),
2448 x 1624 (4.0 MP, Other),
2448 x 1376 (3.4 MP, 16:9),
12416 x 1856 (23.0 MP, Other),
5536 x 2160 (12.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
3872 x 2160 (8.4 MP, Other),
7152 x 1080 (7.7 MP, Other),
4912 x 1080 (5.3 MP, Other),
1920 x 1080 (2.1 MP, 16:9)
8256 x 6192 (51.1 MP, 4:3),
8256 x 5504 (45.4 MP, 3:2),
8256 x 4640 (38.3 MP, 16:9),
6192 x 6192 (38.3 MP, 1:1),
8256 x 3048 (25.2 MP, Other),
7744 x 6192 (48.0 MP, 5:4),
7232 x 6192 (44.8 MP, Other),
4000 x 3000 (12.0 MP, 4:3),
4000 x 2663 (10.7 MP, 3:2),
4000 x 2248 (9.0 MP, 16:9),
2992 x 2992 (9.0 MP, 1:1),
4000 x 1480 (5.9 MP, Other),
3744 x 3000 (11.2 MP, 5:4),
3504 x 3000 (10.5 MP, Other)
Image File Format: JPEG, MPO, RAW (12-bit ARW 2.3), RAW+JPEG JPEG, 14-bit RAW (uncompressed or lossless compressed); RAW+JPEG; 24-bit TIFF (in-camera RAW conversion)
Continuous-mode frames/second: 5.5 3.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i(FH)/​24p(FX)/​24p(FH))
1440x1080 (30p)
640x480 (30p)
1920x1080 (30p/​25p/​24p/​23.98p)
1280x720 (30p/​25p/​24p/​23.98p)
Movie File Format: AVCHD 1.0/MP4 (Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC) MOV (MPEG-4 AVC / H.264, Audio: Linear PCM 48KHz 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 Alpha (Minolta A) FUJINON G Mount
Lens: Sony 18-55mm f/3.5-5.6 DT SAM n/a
Focal Length (35mm equivalent): 27 - 83mm  
Focal Length (actual): 18 - 55mm  
Zoom Ratio: 3.06x  
Aperture Range: f/3.5 - 22 (W), f/5.6 - 36 (T)  
Integrated ND Filter: No No
Normal Focus Range: 25 cm to Infinity
9.8 in to Infinity
 
Macro Focus Range:    
Filter Thread: 55.0mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes
Digital Zoom Values: Up to 2x Precision, Up to 2x Clear Image Zoom, 1.4x (8.4MP) or 2.0x (4MP) Smart Zoom  
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Phase Detection: 15 points (3 points cross type); Wide (auto, 15 points), Zone, Spot, Local; Enhanced Object Tracking Contrast Detection: 425 points; Single Point AF: 13x9 / 25x17 (Changeable Size of AF Frame Among 6 Types); Zone AF: 3x3 / 5x5 / 7x7 from 117 Areas on 13x9 Grid; Wide/Tracking AF: (Up to 9 Area); Single AF / Continuous AF / MF; Touch AF supported
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD EVF / LCD
Viewfinder Type: EVF type; 1.1cm (0.43") 1.15M-dot LCD (380K-dot time-multiplexed RGB), 100% coverage, 1.1x magnification, 19mm eyepoint, -4 to +4 diopter 0.5-inch 3.69M-dot OLED, 100% coverage, 0.77x magnification (35mm eq.), 23mm eyepoint, -4 to +2 diopter adjustment, eye sensor
Focus Peaking: Yes Yes
EVF Resolution:   3,690,000 dots
Viewfinder Magnification (35mm equivalent): 0.73x 0.77x
Viewfinder Magnification (nominal/claimed): 1.10x 0.61x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.6 3.2
Rear Display Resolution: 230,400 dots (76,800 px) 2,360,000 dots
Touchscreen: No Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom: 11.8x  
Top Deck Display: No No
Exposure
Maximum ISO (native): 16000 12800
Minimum ISO (native): 100 100
ISO Settings: Auto (100-3200), 100, 200, 400, 800, 1600, 3200, 6400, 12800, 16000; (Multi-frame NR mode up to ISO 25600) Auto (1/2/3), 100-12800, expandable to 50-102400
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (Warm, Cool, Day, Daylight), Flash, Custom, Color Temp/Filter (2500-9900K with 15-step Magenta/Green compensation) Auto, Daylight, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light, Underwater, Custom, Color Temperature (K)
Shutter Speed Range: 1/4000 - 30 sec 1/16000 - 3600 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 1200-zone Evaluative, Center-weighted, Spot TTL 256-zone metering: Multi, Spot , Average, Center Weighted
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Sweep Panorama, 3D Sweep Panorama, Portrait, SportsAction, Macro, Landscape, Sunset, Night view, Hand-held Twilight (6 shot layering), Night Portrait, Picture Effect (Posterization (color/B/W), Pop Color, Retro Photo, Partial color (R/G/B/Y), High Contrast Monochrome, Toy Camera (Normal/Cool), Soft High-key, Soft Focus (Hi/Mid/Lo), HDR Painting (Hi/Mid/Lo), Miniature (7 Settings)) Film Simulation modes (PROVIA / Standard, Velvia / Vivid, ASTIA / Soft, Classic Chrome, PRO Neg.Hi, PRO Neg.Std, Black&White, Black&White+Ye Filter, Black&White+R Filter, Black&White+Gfilter, Sepia, ACROS, ACROS+Ye Filter, ACROS+R Filter, ACROS+G Filter), Dynamic range setting: AUTO, 100%, 200%, 400%
Self Timer: 2 or 10 seconds 10 or 2 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off TTL (Flash Auto / Standard / Slow Sync.), Manual, Off; Sync: 1st Curtain, 2nd Curtain; Auto FP (HSS)
Flash Guide Number (ISO 100): 10.0 m / 32.8 ft. n/a
Flash Range Description: Lens dependent n/a
Max Flash Sync: 1/160 1/125
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps  
External Flash Connection: Hot shoe Hot Shoe, PC Sync Terminal
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: MS PRO Duo / SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support:   UHS-II
Other Memory:    
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (12-bit ARW 2.3), RAW+JPEG 14-bit RAW (uncompressed or lossless compressed); RAW+JPEG; 24-bit TIFF (in-camera RAW conversion)
Movie File Format: AVCHD 1.0/MP4 (Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC) MOV (MPEG-4 AVC / H.264, Audio: Linear PCM 48KHz stereo sound)
Included Memory:   No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes No
Remote Control: Yes Yes
Remote Control Type: Optional Wired (RM-S1AM/RM-L1AM) Via Wi-Fi or Remote Release RR-100
Connections (extended): Type-C Mini HDMI (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack, DC Input Micro HDMI (Type-D), USB-C (USB 3.1 Gen1), 2.5mm external mic/remote jack, 3.5mm headphone jack, DC input (15v)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.47 1.10
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.45  
Buffer size for RAW shooting in single shot mode (frames): 2  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   1.10
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 5.5 3.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 10 Unlimited
RAW shooting speed in burst mode (fps):   3.0
Buffer size for RAW shooting in burst mode (frames):   25
RAW+JPEG shooting speed in burst mode (fps):   3.0
Buffer Size for RAW+JPEG shooting in burst mode (frames):   11
Shutter lag (full AF, wide/mid): 0.11 seconds 0.44 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.080 seconds 0.119 seconds
Shutter lag (full AF, with flash): 0.32 seconds  
Shutter Lag (prefocused): 0.057 seconds 0.102 seconds
Shutter Lag (notes): Full AF lag, Wide-area mode = 0.124s Default EFCS used.
Startup Time: 0.9 seconds 1.1 seconds
Play -> Record Time: 0.9 seconds 0.9 seconds
Flash cycle time, full power: 2.5 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   400 shots
Battery Life, Still (CIPA Rating OVF/EVF): 450 shots 400 shots
Battery Life, Video:   70 minutes
Battery Form Factor: Proprietary Proprietary
Usable Battery Types: NP-FW50 Lithium-ion rechargeable NP-T125 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FW50 Lithium-ion rechargeable 1 x Proprietary NP-T125 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: Sony Software CD-ROM  
OS Compatibility: Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +)  
Miscellaneous
Notes & Features: SteadyShot INSIDE Sensor-shift Image Stabilization (up to 4 EV correction), Full HD 1080i60 Video, Up to 7 fps Burst Mode (Tele-zoom Continuous Advance Priority AE), Enhanced Object Tracking AF, 2x Clear Image Digital Zoom, Auto Portrait Framing.