Compare Pentax K-3 Mark III vs Sony a6500 vs Sony a7R III
Connectivity
Ports
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 1
HDMI + Microphone + Remote Control + USB 2.0
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 1
Wireless Connectivity
802.11b/g/n + Bluetooth
802.11b/g/n + NFC
802.11b/g/n + NFC + Bluetooth
Construction
Form Factor
DSLR camera
Mirrorless camera
Mirrorless camera
Image Size
APS-C (23 x 15.5 mm)
APS-C (23.5 x 15.6 mm)
Full frame (35.9 x 24 mm)
Lens Mount
Pentax K-mount
Sony E-mount
Sony E-mount
Microphone
Stereo
Stereo
Stereo
Sensor | Resolution
26 MP (6192 x 4128)
24 MP (6000 x 4000)
42 MP (7952 x 5304)
Sensor | Type
CMOS
CMOS
BSI-CMOS
Speakers
Mono
Mono
Mono
Dimensions
Size | Depth
74 mm / 2.91 in
53 mm / 2.09 in
74 mm / 2.91 in
Size | Height
104 mm / 4.09 in
67 mm / 2.64 in
96 mm / 3.78 in
Size | Width
135 mm / 5.31 in
120 mm / 4.72 in
127 mm / 5.00 in
Weight
820 g / 28.98 oz
453 g / 16.01 oz
657 g / 23.22 oz
Display
Display Diagonal
3.2 inch
3 inch
3 inch
Display Type
Fixed TFT LCD
Tilting TFT LCD
Tilting TFT LCD
Resolution
1,620,000 dots
921,600 dots
1,440,000 dots
Viewfinder | Coverage
100%
100%
100%
Viewfinder | Magnification
1.05x
1.07x
0.78x
Viewfinder | Resolution
2,359,296 dots
3,686,400 dots
Viewfinder | Type
Optical (pentaprism)
Electronic
Electronic
Function
AE Bracketing
±5 (2, 3, 5 frames at 1/3 EV, 1/2 EV steps)
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV steps)
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV steps)
Autofocus
101 focus points (25 cross type)
425 focus points
399 focus points
Crop Factor
1.5
1.5
1.0
Exposure Compensation
±5 (at 1/3 EV, 1/2 EV steps)
±5 (at 1/3 EV, 1/2 EV steps)
±5 (at 1/3 EV, 1/2 EV steps)
Exposure Mode
Auto / Aperture Priority / Shutter Priority / Manual
Auto / Aperture Priority / Shutter Priority / Manual
Auto / Aperture Priority / Shutter Priority / Manual
Flash
Built-in
GPS
No
No
No
ISO Range
(100 ~ 1600000)
100 ~ 25600 (expandable to 51200)
100 ~ 32000 (expands to 50 ~ 102400)
Image Stabilization
5.5 stops
5-axis
5-axis (5.5 stops)
Intervalometer
Yes
No
Processor
PRIME V
Bionz X
Bionz X
Touch Screen
Yes
Yes
Yes
Video Codecs
MPEG-4, H.264
MPEG-4, AVCHD, XAVC S
MPEG-4, AVCHD, XAVC S
Weather Resistance
Yes
Yes
Yes
Performance
Battery Life
800 shots
350 shots
650 shots
Flash Range
6.00 m
Max Burst Rate
12.0 fps
11.0 fps
10.0 fps
Storage
Dual SD/SDHC/SDXC slots (UHS-II supported in slot 1)
SD/SDHC/SDXC + Memory Stick Pro Duo
Two SD/SDHC/SDXC slots (UHS-II support on one)
Production
Battery
D-LI90
NP-FW50
NP-FZ100 lithium-ion battery and charger
Debut
2021-03-30
2016-10-06
2017-10-25
Model Name
ILCE-6500
ILCE-7RM3
Reviews
Neofiliac score
69%
60%
74%
Pros
- Exceptional battery life
- 5.5 stops of IBIS
- Good 12.0 fps burst rate
- Weather-sealed
- Viewfinder with great 1.05x magnification
- Supports both WiFi and Bluetooth
- Good 11.0 fps burst rate
- Rather compact
- Quite light
- Weather-sealed
- Viewfinder with great 1.07x magnification
- Long battery life
- 5.5 stops of IBIS
- Good 10.0 fps burst rate
- Rather compact
- High 42 MP resolution
- Weather-sealed
- Supports both WiFi and Bluetooth
Cons
- Quite heavy
- Low resolution EVF
- Viewfinder with low 0.78x magnification
- Lacks intervalometer for timelapse
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