Sony Alpha7R IV ILCE-7RM4 vs. Sony Alpha6600 ILCE-6600M + E 18-135mm OSS

Camera Comparison, Reviews and Tests

In depth comparison and review of Sony Alpha7R IV ILCE-7RM4 and Sony Alpha6600 ILCE-6600M + E 18-135mm OSS. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.

Camera Specifications Comparison

Sony Alpha7R IV ILCE-7RM4 vs. Sony Alpha6600 ILCE-6600M + E 18-135mm OSS Comparison Chart
DESIGN AND DIMENSIONS Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Product Type Digital camera - 4K - mirrorless system Digital camera - 4K - mirrorless system
Lens Included Body only E 18-135mm OSS lens
Height 9.64 cm 6.69 cm
Width 12.89 cm 12 cm
Depth 7.75 cm 6.93 cm
Weight 665 g 418 g
Weight Details Camera body only:
Camera with battery and memory card: 665 g
Camera body only: 418 g
Camera with battery and memory card: 503 g
Body Material - Magnesium alloy
Enclosure Colour Black Black
Protection - Dust-resistant, moisture-resistant
Digital Zoom - 4x
Optical Zoom - 7.5x
SENSOR Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Sensor Resolution 61 Megapixel 24.2 Megapixel
Optical Sensor Type Exmor R CMOS Exmor CMOS
Total Pixels 62,500,000 pixels 25,000,000 pixels
Effective Sensor Resolution 61,000,000 pixels 24,200,000 pixels
Optical Sensor Size Full Frame (35.7 x 23.8 mm) APS-C (23.5 x 15.6 mm)
Frame Rate (Max Resolution) 30 fps 30 fps
Sensor Dust Reduction Yes Yes
Sensor Features Dust Reduction (image sensor vibration), Anti-Dust coating Dust Reduction (image sensor vibration), Anti-Dust coating
Image Stabiliser Optical (5-axis Steady Shot) Optical (5-axis image sensor shift mechanism)
Built-in Optical Image Stabiliser Yes Yes
Sensors Digital level metre Digital level metre
PROCESSOR Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Image Processor BIONZ X BIONZ X
LENS Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Type - Zoom lens - 7.5x zoom - 18 - 135 mm - f/3.5-5.6 E OSS - zoom
Focal Length Equivalent to 35mm Camera - 27 - 202.5mm
Focus Adjustment - Automatic, manual
Min Focus Distance - 45 cm
Max View Angle - 76 degree(s)
Zoom Adjustment - Manual (by ring)
Lens Construction - 12 groups / 16 elements
Filter Size - 55 mm
Lens Mounting Type Sony E-mount Sony E-mount
Features - ED glass, aspherical lens, linear AF motor
FOCUSING Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Auto Focus TTL contrast and phase detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 567 425
Auto Focus Features Predictive Focus Control, Focus Priority in Aperture Drive Focus Peaking function, Predictive Focus Control
AE/AF Control Zone AF, Real-time Eye AF, Real-time Tracking AF -
Face Detection Eye Detect AF, face-priority AF function Eye Detect AF, Face Detection AF/AE, Self Portrait Auto Shutter
VIEWFINDER Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Viewfinder Type Electronic - OLED Electronic - OLED
Viewfinder Colour Support Colour Colour
Viewfinder Diagonal Size 0.5" 0.39"
Viewfinder Resolution 5,760,000 pixels 2,359,296 pixels
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 0.78x 1.07x
Optical Viewfinder Dioptric Correction Range -4 to +3 -4 to +3
Field of View Crop Factor - 1.5
Features Viewfinder brightness control, colour temperature control Viewfinder brightness control, colour temperature control
EXPOSURE & WHITE BALANCE Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
ISO (Max) 32000 102400
Native ISO 100-32000 100-32000
Extended ISO (Max) 102400 102400
Extended ISO (Min) 50 50
Light Sensitivity ISO 50, ISO 102400, ISO auto (100-12800), ISO 100-32000 ISO 50, ISO 102400, ISO 51200, ISO 100-32000
Exposure Metering Multi-segment, centre-weighted, spot, average Multi-segment, centre-weighted, spot, average, highlight-weighted
Exposure Metering Zones 1200 1200
Exposure Modes Bulb, automatic, manual, aperture-priority, shutter-priority Programme, bulb, automatic, manual, aperture-priority, shutter-priority
Bracketing Modes Dynamic Range Bracketing, white balance bracketing Dynamic Range Bracketing, Flash Exposure Bracketing, white balance bracketing
Shooting Programs - Landscape, portrait mode, macro, night portrait, night scene, sports mode, sunset, handheld twilight, anti-motion blur
Special Effects Black & White, Sepia, Neutral, Vivid, sunset, landscape, portrait, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Soft High-key, Night Scene, Standard, Style Box, Posterisation (B/W) Black & White, Sepia, Neutral, Vivid, sunset, landscape, portrait, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Rich-tone monochrome, Soft High-key, Night Scene, Standard, Style Box, Posterisation (B/W)
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white) Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white)
Shutter Type Electronic, mechanical electronically-controlled Mechanical electronically-controlled
Max Shutter Speed 1/8000 sec 1/4000 sec
Min Shutter Speed 30 sec 30 sec
Exposure Compensation ±5 EV range, in 1/2 or 1/3 EV steps ±5 EV range, in 1/2 or 1/3 EV steps
Auto Exposure Bracketing 3, 5, 9 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps 3, 5, 9 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps
White Balance Bracketing Yes Yes
X-sync Speed 1/250sec 1/160 sec
Exposure Range EV -3-20 (ISO 100) EV -2-20 (ISO 100)
DISPLAY Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Type 3" LCD display 2.95" LCD display
Touch Screen Yes Yes
Display Format 1,440,000 pixels 921,600 pixels
Display Form Factor Folding Tilting
Display Features Display brightness control, Peaking AF display, Touch AF Display brightness control
VIDEOGRAPHY / CAMCORDER Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Digital Video Format AVCHD, XAVC S AVCHD, H.264, XAVC S
Image Recording Format JPEG, RAW, RAW + JPEG JPEG, RAW, RAW + JPEG
Max Video Resolution 3840 x 2160 3840 x 2160
Audio Signal Format Dolby Digital AC-3 (2 channel), Linear PCM Dolby Digital AC-3 (2 channel), Linear PCM
Microphone Operation Mode Stereo Stereo
MEMORY Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Memory Card Slot Dual SD card Memory Stick PRO Duo card, SD card
Supported Memory Cards SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card SD Memory Card, Memory Stick PRO Duo, SDXC Memory Card, SDHC Memory Card, Memory Stick PRO-HG Duo, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card
Memory Card Included No No
Image Storage 9504 x 6336
8448 x 6336
9504 x 5344
6240 x 4160
5552 x 4160
6240 x 3512
4752 x 3168
4224 x 3168
4752 x 2672
3120 x 2080
2768 x 2080
3120 x 1752
6336 x 6336
4160 x 4160
3168 x 3168
2080 x 2080
6000 x 4000
4240 x 2832
3008 x 2000
6000 x 3376
4240 x 2400
3008 x 1688
4000 x 4000
2832 x 2832
2000 x 2000
Video Capture AVCHD - 1920 x 1080 i - 60 fps - 24Mbps
AVCHD - 1920 x 1080 i - 60 fps - 17Mbps
AVCHD - 1920 x 1080 i - 50 fps - 24Mbps
AVCHD - 1920 x 1080 i - 50 fps - 17Mbps
XAVC S - 3840 x 2160 p - 30 fps - 100Mbps
XAVC S - 3840 x 2160 p - 24 fps - 100Mbps
XAVC S - 3840 x 2160 p - 30 fps - 60Mbps
XAVC S - 3840 x 2160 p - 24 fps - 60Mbps
XAVC S - 1920 x 1080 p - 120 fps - 100Mbps
XAVC S - 1920 x 1080 p - 120 fps - 60Mbps
XAVC S - 1920 x 1080 p - 60 fps - 50Mbps
XAVC S - 1920 x 1080 p - 30 fps - 50Mbps
XAVC S - 1920 x 1080 p - 24 fps - 50Mbps
XAVC S - 1920 x 1080 p - 60 fps - 25Mbps
XAVC S - 1920 x 1080 p - 30 fps - 16Mbps
XAVC S - 3840 x 2160 p - 25 fps - 100Mbps
XAVC S - 3840 x 2160 p - 25 fps - 60Mbps
XAVC S - 1920 x 1080 p - 100 fps - 100Mbps
XAVC S - 1920 x 1080 p - 100 fps - 60Mbps
XAVC S - 1920 x 1080 p - 50 fps - 50Mbps
XAVC S - 1920 x 1080 p - 25 fps - 50Mbps
XAVC S - 1920 x 1080 p - 50 fps - 25Mbps
XAVC S - 1920 x 1080 p - 25 fps - 16Mbps
XAVC S - 3840 x 2160 p - 30 fps - 100Mbps
XAVC S - 3840 x 2160 p - 24 fps - 100Mbps
XAVC S - 3840 x 2160 p - 30 fps - 60Mbps
XAVC S - 3840 x 2160 p - 24 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 120 fps - 100Mbps
XAVC S HD - 1920 x 1080 p - 120 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 60 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 30 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 60 fps - 25Mbps
XAVC S HD - 1920 x 1080 p - 30 fps - 16Mbps
AVCHD - 1920 x 1080 i - 60 fps - 24Mbps
AVCHD - 1920 x 1080 i - 60 fps - 17Mbps
XAVC S - 3840 x 2160 p - 25 fps - 100Mbps
XAVC S - 3840 x 2160 p - 25 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 100 fps - 100Mbps
XAVC S HD - 1920 x 1080 p - 100 fps - 60Mbps
XAVC S HD - 1920 x 1080 p - 50 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 25 fps - 50Mbps
XAVC S HD - 1920 x 1080 p - 50 fps - 25Mbps
XAVC S HD - 1920 x 1080 p - 25 fps - 16Mbps
AVCHD - 1920 x 1080 i - 50 fps - 24Mbps
AVCHD - 1920 x 1080 i - 50 fps - 17Mbps
BATTERY AND CHARGING Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Battery Type Sony NP-FZ100 Lithium Ion Sony NP-FZ100 Lithium Ion
Details Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included)
Battery Life Photo shooting - 670 shots (LCD Monitor on)
Photo shooting - 530 shots (EVF on)
Video recording - 170 minutes (LCD Monitor on)
Video recording - 160 minutes (EVF on)
Photo shooting - 720 shots (EVF on)
Photo shooting - 810 shots (LCD Monitor on)
Video recording - 2.33 shots (EVF on)
Video recording - 2.5 shots (LCD Monitor on)
CONNECTIONS Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Interface HDMI, USB 2.0, USB-C, NFC (Near Field Communication), IEEE 802.11a/b/g/n/ac, Bluetooth 4.1 HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication), Bluetooth 4.1
Connectivity Features Remote control via mobile devices, remote live view, PC Remote functions via Wi-Fi Remote control via mobile devices, remote live view
Print Standard DPOF support, Exif Print support, PRINT Image Matching DPOF support, Exif Print support, PRINT Image Matching
Flash Terminal Hot shoe, PC terminal Hot shoe
Connector Type USB 2.0 (5 pin Micro-USB Type B)
USB 3.2 Gen 1 (USB Type-C)
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
USB 2.0 (5 pin Micro-USB Type B)
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
Remote control
Headphones
FEATURES Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Self-Timer Delay 10 sec, 2sec, 5 sec 10 sec, 2sec, 5 sec
Continuous Shooting Speed 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second 8 frames per second, 3 frames per second, 6 frames per second, 11 frames per second
HDR Mode HDR Movie mode Auto HDR mode
Additional Features Built-in speaker, sharpness control, camera orientation detection, histogram display, saturation control, contrast control, Dynamic Range Optimizer, USB charging, built-in help guide, x.v.Colour technology, Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, silent shooting, S-Log2 gamma setting, Pixel Shift Resolution technology, peripheral shading correction, chromatic aberration correction, anti-flicker, Hybrid Log-Gamma (HLG) recording, S-Log3 gamma setting, PC Remote functions via USB Built-in speaker, sharpness control, histogram display, saturation control, shadow point display, interval shooting mode, highlight point display, contrast control, Dynamic Range Optimizer, built-in help guide, Dolby Digital Stereo Creator, Chromatic Aberration Compensation (CAC), Multi-Frame Noise Reduction, Intelligent AUTO (iAUTO), Touch Shutter technology, fast motion recording, Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, silent shooting, High Dynamic Range (HDR), S-Log2 gamma setting, slow motion recording, peripheral shading correction, Object Tracking, S-Log3 gamma setting
OTHERS Sony Alpha7R IV ILCE-7RM4 Sony Alpha6600 ILCE-6600M + E 18-135mm OSS
Included Accessories Eyepiece cover, battery charger, body cap, shoulder strap, shoe cap, cable protector, USB-C cable Eyepiece cover, lens hood, dust cap, body cap, lens cap, shoulder strap, AC power adaptor, micro-USB cable, hot shoe cap
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature 0 °C 0 °C
Service & Support Limited warranty - parts and labour - 1 year -
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