• APS-C 369.7mm2
  • 16.1 megapixels
  • ISO 100 - 16,000
  • APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 102,400
  • Detailed specifications
  • Sony Alpha SLT-A37
  • Pentax K-70
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Pentax K-50
K-50 vs K-70
Successor:    
General
Model Number: A37 K-70
Alternate Model Number(s):    
Camera Format: SLR SLR
Currently Manufactured: No Yes
Retail Price: $599.99 $649.95
Street Price:   $546.32
Date Available: 2012-06-15 2016-07-30
Tripod Mount: Yes Yes
Weight: 25.6 oz (726 g)
includes batteries, kit lens
39.6 oz (1,122 g)
includes batteries, kit lens
Size: 4.9 x 3.6 x 3.3 in.
(124 x 92 x 85 mm)
4.9 x 3.7 x 2.9 in.
(126 x 93 x 74 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 16.1 24.2
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 4.82 microns 3.92 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Optional
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: No Yes
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)
6000 x 4000 (24.0 MP, 3:2),
4608 x 3072 (14.2 MP, 3:2),
3072 x 2048 (6.3 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2)
Image File Format: JPEG, MPO, RAW (12-bit ARW 2.3), RAW+JPEG JPEG (EXIF 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG
Continuous-mode frames/second: 5.5 6.1
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i(FH)/​24p(FX)/​24p(FH))
1440x1080 (30p)
640x480 (30p)
1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p)
Movie File Format: AVCHD 1.0/MP4 (Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC) MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record
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) Pentax K (KA/KAF/KAF2/3/4)
Lens: Sony 18-55mm f/3.5-5.6 DT SAM smc Pentax 18-135mm f/3.5-5.6 ED AL [IF] DC DA WR
Focal Length (35mm equivalent): 27 - 83mm 27 - 203mm
Focal Length (actual): 18 - 55mm 18 - 135mm
Zoom Ratio: 3.06x 7.50x
Aperture Range: f/3.5 - 22 (W), f/5.6 - 36 (T) f/3.5 - f/22 (wide) / f/5.6 - f/40 (tele)
Integrated ND Filter: No No
Normal Focus Range: 25 cm to Infinity
9.8 in to Infinity
40 cm to Infinity
15.7 in to Infinity
Macro Focus Range:    
Filter Thread: 55.0mm 62.0mm
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 SAFOX X TTL phase-matching - 11 points (9 cross type focus points in the center); Hybrid PD/CD AF in Live View with Face detection, Tracking, Multiple AF points, Select, Spot AF area modes
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / 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 SLR type; eye-level pentaprism, ~100% coverage, 0.95x mag., 22.3mm eyepoint (from center of lens), -2.5 to +1.5 diopter, interchangeable Natural-Bright-Matte III focusing screen
Focus Peaking: Yes Yes
EVF Resolution:   n/a
Viewfinder Magnification (35mm equivalent): 0.73x 0.63x
Viewfinder Magnification (nominal/claimed): 1.10x 0.95x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.6 3.0
Rear Display Resolution: 230,400 dots (76,800 px) 921,600 dots (307,200 px)
Touchscreen: No No
Articulating Screen: Yes Yes
Tilt Swivel Screen: Yes
Selfie Screen: Yes
Max Playback Zoom: 11.8x 16.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 16000 102400
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, 100-102400 (1, 1/2 or 1/3 EV steps)
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, Multi Auto WB, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N:Daylight White, W:Cool White, L:Warm White), Tungsten Light, Flash, CTE, Manual (up to 3 settings), Color Temperature (up to 3 settings)
Shutter Speed Range: 1/4000 - 30 sec 1/6000 - 30 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 open-aperture: 77-segment Multi, Center-weighted, Spot
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)) Scene Mode (Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest, Night Scene, Night Scene HDR, Night Snap, Food, Pet, Kids, Surf & Snow, Backlight Silhouette, Candlelight, Stage Lighting, Museum), Digital Filter (Extract Color, Replace Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome ); Sensitivity Priority, Shutter & Aperture Priority; HDR (Auto, HDR1, HDR2, HDR3, Advanced HDR); D-RANGE Compensation (Highlight Correction, Shadow Correction); Pixel Shift Resolution (Motion Correction ON/OFF)
Self Timer: 2 or 10 seconds 2 or 12 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No 24.0 megapixels
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off P-TTL; Auto Flash Discharge, Auto Flash + Red-eye Reduction (Auto Picture, Scene) Flash On, Flash On+ Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, Manual Flash Discharge (Full-1/128)
Flash Guide Number (ISO 100): 10.0 m / 32.8 ft. 12.0 m / 39.4 ft.
Flash Range Description: Lens dependent GN=12m (ISO 100)
Max Flash Sync: 1/160 1/180
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps -2 to +1 EV in 0.5EV steps
External Flash Connection: Hot shoe Hot Shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: MS PRO Duo / SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (12-bit ARW 2.3), RAW+JPEG 14-bit RAW (.PEF, .DNG), RAW+JPEG
Movie File Format: AVCHD 1.0/MP4 (Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC) MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record
Included Memory:   No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wired (RM-S1AM/RM-L1AM) Optional Wired or IR
Connections (extended): Type-C Mini HDMI (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack, DC Input Micro (Type D) HMDI, USB 2.0 Micro B, 3.5mm external stereo mic / cable switch jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.47 <0.3
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):   <0.3
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 5.5 6.1
Buffer size for JPEG shooting in burst mode (frames, max resolution): 10 47
RAW shooting speed in burst mode (fps):   6.1
Buffer size for RAW shooting in burst mode (frames):   11
RAW+JPEG shooting speed in burst mode (fps):   6.1
Buffer Size for RAW+JPEG shooting in burst mode (frames):   9
Shutter lag (full AF, wide/mid): 0.11 seconds 0.13 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):   0.272 seconds
Shutter Lag (manual focus): 0.080 seconds 0.095 seconds
Shutter lag (full AF, with flash): 0.32 seconds 0.14 seconds
Shutter Lag (prefocused): 0.057 seconds 0.093 seconds
Shutter Lag (notes): Full AF lag, Wide-area mode = 0.124s  
Startup Time: 0.9 seconds 1.0 seconds
Play -> Record Time: 0.9 seconds 0.2 seconds
Flash cycle time, full power: 2.5 seconds 2.3 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 450 shots 410 shots
Battery Life, Video:    
Battery Form Factor: Proprietary Proprietary D-LI109
Usable Battery Types: NP-FW50 Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FW50 Lithium-ion rechargeable 1 x Proprietary D-LI109 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: Sony Software CD-ROM Software CD-ROM includes Digital Camera Utility 5
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.