Compare Sony a7R II vs Pentax 645Z vs Pentax 645D
Connectivity
Ports
HDMI + Headphone + Microphone + Remote Control + USB 2.0
HDMI + Microphone + Remote Control + USB 3.0
Remote Control + USB 2.0
Wireless Connectivity
802.11b/g/n with NFC
Construction
Form Factor
Mirrorless camera
Image Size
Full frame (35.9 x 24 mm)
Medium format (645)
Medium format (645)
Lens Mount
Sony E-mount
PENTAX 645AF2
Microphone
Stereo
Mono
Stereo
Sensor | Resolution
42 MP (7952 x 5304)
51 MP (8256 x 6192)
40 MP (7264 x 5440)
Sensor | Type
BSI-CMOS
CMOS
CCD
Speakers
Mono
Stereo
None
Dimensions
Size | Depth
60 mm / 2.36 in
123 mm / 4.84 in
119 mm / 4.69 in
Size | Height
96 mm / 3.78 in
117 mm / 4.61 in
117 mm / 4.61 in
Size | Width
127 mm / 5.00 in
156 mm / 6.14 in
156 mm / 6.14 in
Weight
625 g / 22.08 oz
1550 g / 54.77 oz
1480 g / 52.30 oz
Display
Display Diagonal
3 inch
3.2 inch
3 inch
Display Type
Tilting TFT LCD
Tilting TFT LCD
Fixed TFT Color LCD with wide-viewing angle and with AR coating
Resolution
1,228,800 dots
1,037,000 dots
921,000 dots
Viewfinder | Coverage
100%
98%
98%
Viewfinder | Magnification
0.78x
0.62x
0.85x
Viewfinder | Resolution
2,359,296 dots
Viewfinder | Type
Electronic
Optical (pentaprism)
Optical (pentaprism)
Function
AE Bracketing
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV steps)
±5 (2, 3, 5 frames at 1/3 EV, 1/2 EV, 1 EV, 2 EV steps)
±2 (3, 5 frames at 1/7 EV, 1/5 EV, 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)
Autofocus
399 focus points
27 focus points
11 focus points
Crop Factor
1.0
0.6
0.6
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
GPS
No
Optional via O-GPS1
No
ISO Range
100 ~ 25600 (expands to 50 ~ 102400)
to, ISO 100 ~ 204800
200, 400, 800, 1600 (100 with boost)
Image Stabilization
5-axis (4.5 stops per CIPA standard)
No
No
Intervalometer
Yes
Yes
Yes
Processor
Bionz X
PRIME III
Prime II
Touch Screen
No
No
No
Video Codecs
MPEG-4, AVCHD, XAVC S
MPEG-4, H.264
Weather Resistance
Yes
Yes
Yes
Performance
Battery Life
290 shots
650 shots
Max Burst Rate
5.0 fps
3.0 fps
1.1 fps
Storage
SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Dual SD/SDHC/SDXC slots
SD/SDHC
Production
Battery
NP-FW50 lithium-ion battery and charger
D-LI90 lithium-ion battery and charger
Lithium-Ion D-LI90 rechargeable battery & charger
Debut
2015-06-10
2014-04-15
2010-03-10
Model Name
ILCE-7RM2
Reviews
Neofiliac score
63%
62%
57%
Pros
- Rather compact
- High 42 MP resolution
- Weather-sealed
- Long battery life
- Medium format look
- Exceptionally high 51 MP resolution
- Weather-sealed
- Affordable for a 645 DSLR
- Medium format look
- Weather-sealed
- Affordable for a 645 DSLR
Cons
- Menu not touch-enabled
- Poor battery life
- Very low 5.0 fps burst rate
- Viewfinder with low 0.78x magnification
- Low resolution EVF
- Menu not touch-enabled
- Very low 3.0 fps burst rate
- Very large in size
- Very heavy
- Viewfinder coverage is cropped at 98%
- Viewfinder with low 0.62x magnification
- Menu not touch-enabled
- Very low 1.1 fps burst rate
- Very large in size
- Very heavy
- Viewfinder coverage is cropped at 98%
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