| Links | ||
|---|---|---|
| Prices: | Compare Prices | Compare Prices |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Pentax 645D
645D vs 645Z |
Sony A7 III
A7 III vs A7 IV |
| Successor: | ||
| General | ||
| Model Number: | 645Z | A7 IV |
| Alternate Model Number(s): | ILCE-7M4 | |
| Camera Format: | Pro SLR | Compact System Camera |
| Currently Manufactured: | Yes | Yes |
| Retail Price: | $8499.95 | $2500.00 |
| Street Price: | $4,845.43 | $2,231.33 |
| Date Available: | 2014-06-15 | 2021-12-31 |
| Tripod Mount: | Yes | Yes |
| Weight: |
54.9 oz
(1,555 g)
includes batteries |
23.2 oz
(658 g)
includes batteries |
| Size: |
6.1 x
4.6 x
4.8 in. (156 x 117 x 123 mm) |
5.2 x
3.8 x
3.1 in. (131 x 96 x 80 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Sony | Sony |
| Effective Megapixels: | 51.4 | 33.0 |
| Sensor Format: | Medium format | 35mm |
| Sensor size: | 1436.64mm2 (43.80mm x 32.80mm) | 858.01mm2 (35.90mm x 23.90mm) |
| Approximate Pixel Pitch: | 5.31 microns | 5.12 microns |
| Focal Length Multiplier: | 0.8x | 1.0x |
| Aspect Ratio: | 4:3 | 3:2 |
| Color Filter Type: | RGBG | RGBG |
| Anti Aliasing Filter: | None | None |
| Self-Cleaning: | Yes | Yes |
| Sensor shift image stabilization: | No | Yes |
| On-Sensor Phase Detect: | No | No |
| DxO Sensor Score: | 101 | |
| DxO Color Depth Score (bits): | 26.0 | |
| DxO Dynamic Range Score (evs): | 14.7 | |
| DxO Maximum Effective ISO Score (iso): | 4,505 | |
| Image Capture | ||
| Image Resolution: |
8256 x 6192
(51.1 MP,
4:3), 6192 x 5184 (32.1 MP, Other), 5376 x 4032 (21.7 MP, 4:3), 1920 x 1440 (2.8 MP, 4:3) |
7008 x 4672
(32.7 MP,
3:2), 4608 x 3072 (14.2 MP, 3:2), 3504 x 2336 (8.2 MP, 3:2), 7008 x 3944 (27.6 MP, 16:9), 4608 x 2592 (11.9 MP, 16:9), 3504 x 1968 (6.9 MP, 16:9), 6224 x 4672 (29.1 MP, 4:3), 4096 x 3072 (12.6 MP, 4:3), 3120 x 2336 (7.3 MP, Other), 4672 x 4672 (21.8 MP, 1:1), 3072 x 3072 (9.4 MP, 1:1), 2336 x 2336 (5.5 MP, 1:1) |
| Image File Format: | JPEG, 14-bit PEF / DNG RAW, TIFF | JPEG (8-bit), HEIF (10-bit), RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF |
| Continuous-mode frames/second: | 3.1 | 10.0 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1920x1080 (60i/50i/30p/25p/24p)
1280x720 (60p/50p/30p/25p/24p) |
3840x2160 (60p/50p/30p/25p/24p)
1920x1080 (120p/60p/50p/30p/25p/24p) |
| Movie File Format: | MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record | 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: | Pentax 645 bayonet | Sony E |
| Lens: | n/a | Sony FE 28-70mm f/3.5-5.6 OSS SEL2870 |
| Focal Length (35mm equivalent): | 28 - 70mm | |
| Focal Length (actual): | 28 - 70mm | |
| Zoom Ratio: | 2.50x | |
| Aperture Range: | f/3.5-22 (W) / f/5.6-36 (T) | |
| Integrated ND Filter: | No | No |
| Normal Focus Range: |
40 cm to Infinity 15.7 in to Infinity |
|
| Macro Focus Range: | ||
| Filter Thread: | n/a | 55.0mm |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | No | No |
| Digital Zoom: | Yes | |
| Digital Zoom Values: | Up to 4x; 2x Clear Image Digital Zoom | |
| Auto Focus | ||
| Auto Focus: | Yes | Yes |
| Auto Focus Type: | 27-point SAFOX 11+ Phase Difference Detection (25 cross type focus points in the center): Spot, Select, Expanded Area AF (S, M, L), Zone Select, Auto (27 AF Points) | 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: | Optical / LCD | EVF / LCD |
| Viewfinder Type: | Trapezoid prism finder w/ interchangeable Natural-Bright-Matte focusing screen; Coverage: ~98%; Magnification: ~0.62x (55mmF2.8 at infinity), ~0.85x (75mmF2.8 at infinity); Diopter: -3.5 m to + 2.0 m-1; Eye Relief: ~21 mm (from view window), ~24.1 mm (from center of lens) | EVF: 1.3 cm (0.5 type) 3.68M-dot UXGA color OLED, 100% coverage, 0.78x magnification, -4.0 to +3.0 diopter, 23mm eyepoint from the eyepiece lens |
| Focus Peaking: | Yes | Yes |
| EVF Resolution: | n/a | 3,686,400 dots (1,228,800 pixels) |
| Viewfinder Magnification (35mm equivalent): | 0.78x | |
| Viewfinder Magnification (nominal/claimed): | 0.62x | |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 3.2 | 3.0 |
| Rear Display Resolution: | 1,036,800 dots (345,600 px) | 3,680,000 dots |
| Touchscreen: | No | Yes |
| Articulating Screen: | Yes | Yes |
| Tilt Swivel Screen: | No | Yes |
| Selfie Screen: | No | Yes |
| Max Playback Zoom: | 16.0x | 13.3x |
| Top Deck Display: | Yes | No |
| Exposure | ||
| Maximum ISO (native): | 204800 | 51200 |
| Minimum ISO (native): | 100 | 100 |
| ISO Settings: | Auto, 100-204800 in 1, 1/2 or 1/3EV steps | Auto, 100 - 51200, expandable to 50 - 204800 |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Multi Auto, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N: Daylight White, W: Cool White, L: Warm White), Tungsten, Flash, CTE; Manual mode(s): Manual (up to 3 settings can be saved), Color Temperature (up to 3 settings can be saved), Copying the white balance settings of a captured image possible | Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Custom, Color Temp./ Filter (2500-9900K with 57-step Magenta/Green and 29-step Amber/Blue compensation), Underwater |
| Shutter Speed Range: | 1/4000 - 30 sec | 1/8000 - 30 sec |
| Bulb Mode: | Yes | Yes |
| Exposure Compensation: | +/- 5.0EV in 0.3EV steps | +/- 5.0EV in 0.3EV steps |
| Metering Modes: | 86K-pixel RBG sensor: Multi-segment metering, Center-weighted metering, Spot metering | 1200-zone Evaluative Multi-segment, Center-weighted, 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 & Aperture Priority; HDR Capture: Auto, Type1, Type2, Type3, Exposure Bracket Value adjustable, Auto Align (automatic composition correction function) available; Custom Image: Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass, Reversal Film, Monochrome, Cross Processing (Random, Preset 1-3, Favorite 1-3) | 3 Custom Settings; Creative Look; Slow & Quick Motion; 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): | Yes | |
| High Resolution Composite: | No | No |
| Flash | ||
| Built-in Flash: | No | No |
| Flash Modes: | P-TTL; high-speed sync, wireless sync supported with compatible flash unit | Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync |
| Flash Guide Number (ISO 100): | n/a | n/a |
| Flash Range Description: | n/a | n/a |
| Max Flash Sync: | 1/125 | 1/250 |
| Flash Exposure Compensation: | -2 to +1 EV | +/- 3.0 EV in 0.3EV steps |
| External Flash Connection: | Hot shoe, X-sync socket | Enhanced Multi Interface Hot Shoe, Sync Terminal |
| Built-In Wireless Flash Control: | No | |
| Image Storage | ||
| Usable Memory Types: | SD / SDHC / SDXC | MS PRO Duo / SD / SDHC / SDXC / CFexpress |
| UHS Support: | UHS-I | UHS-I |
| Other Memory: | 2x:CFexpress Type A, SD UHS-II | |
| Dual Card Slots: | Yes | Yes |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | 14-bit PEF / DNG RAW, TIFF | RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF |
| Movie File Format: | MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record | 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,Bluetooth,WiFi |
| PictBridge Compliant: | No | No |
| DPOF Compliant: | No | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Optional wired or wireless | Yes, via USB or Wi-Fi |
| Connections (extended): | Micro (Type-D) HDMI, DC input, Stereo microphone jack, wired remote socket | USB-C (USB 3.2 Gen2, 10Gbps), Multi-Terminal Micro USB (with remote support), Type-A HDMI, 3.5mm Microphone and Headphone jacks |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.35 | |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 0.33 | |
| Buffer size for RAW shooting in single shot mode (frames): | 10 | |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | 0.33 | |
| Camera penalizes early shutter press? | Yes | |
| JPEG shooting speed in burst mode (fps, max resolution): | 3.1 | 10.0 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 12 | 828 |
| RAW shooting speed in burst mode (fps): | 3.1 | |
| Buffer size for RAW shooting in burst mode (frames): | 10 | |
| RAW+JPEG shooting speed in burst mode (fps): | 3.1 | |
| Buffer Size for RAW+JPEG shooting in burst mode (frames): | 10 | |
| Shutter lag (full AF, wide/mid): | 0.16 seconds | |
| Shutter lag (full AF, tele): | ||
| Shutter lag (full AF, live view - DSLR): | 1.17 seconds | |
| Shutter lag (prefocused, live view - DSLR): | 0.385 seconds | |
| Shutter Lag (manual focus): | 0.117 seconds | |
| Shutter lag (full AF, with flash): | ||
| Shutter Lag (prefocused): | 0.112 seconds | |
| Shutter Lag (notes): | OVF: Full AF lag, wide-area mode = 0.170s Live View: Full AF lag, Spot AF mode = 1.174s Prefocused = 0.385s | |
| Startup Time: | 1.5 seconds | |
| Play -> Record Time: | 0.7 seconds | |
| Flash cycle time, full power: | ||
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | ||
| Battery Life, Still (CIPA Rating OVF/EVF): | 650 shots | |
| Battery Life, Video: | ||
| Battery Form Factor: | Proprietary D-LI90 | Proprietary |
| Usable Battery Types: | Lithium-ion rechargeable | NP-FZ100 Lithium-ion rechargeable |
| Batteries Included: | 1 x Proprietary D-LI90 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 | Yes |
| Internal Charging Supported: | No | Yes |
| Software | ||
| Included Software: | Capture One Express (for Sony) free download | |
| OS Compatibility: | Windows, Mac OS X | |
| Miscellaneous | ||
| Notes & Features: | New 51.4MP AA-filterless CMOS sensor, PRIME III processor, 27-point SAFOX 11 AF, 86K RGB metering, Full HD video up to 60i, tilting LCD monitor with Live View, 3fps full-res continuous burst mode. | |
