Compare Pentax KP vs Pentax K-3 II vs Pentax 645D
Connectivity
Ports
Microphone + Remote Control + USB 2.0
HDMI + Headphone + Microphone + Remote Control + USB 3.0
Remote Control + USB 2.0
Wireless Connectivity
802.11 b/g/n
Special version of Flu Card available
Construction
Form Factor
DSLR camera
DSLR camera
Image Size
APS-C (23.5 x 15.6 mm)
APS-C (23.5 x 15.6 mm)
Medium format (645)
Lens Mount
Pentax K-mount
Pentax K-mount
Microphone
Stereo
Mono
Stereo
Sensor | Resolution
24 MP (6016 x 4000)
24 MP (6016 x 4000)
40 MP (7264 x 5440)
Sensor | Type
CMOS
CMOS
CCD
Speakers
Mono
Mono
None
Dimensions
Size | Depth
76 mm / 2.99 in
77 mm / 3.03 in
119 mm / 4.69 in
Size | Height
101 mm / 3.98 in
100 mm / 3.94 in
117 mm / 4.61 in
Size | Width
132 mm / 5.20 in
131 mm / 5.16 in
156 mm / 6.14 in
Weight
703 g / 24.84 oz
800 g / 28.27 oz
1480 g / 52.30 oz
Display
Display Diagonal
3 inch
3.2 inch
3 inch
Display Type
Tilting TFT LCD
Fixed TFT LCD monitor
Fixed TFT Color LCD with wide-viewing angle and with AR coating
Resolution
921,000 dots
1,037,000 dots
921,000 dots
Viewfinder | Coverage
100%
100%
98%
Viewfinder | Magnification
0.95x
0.95x
0.85x
Viewfinder | Type
Optical (pentaprism)
Optical (pentaprism)
Optical (pentaprism)
Function
AE Bracketing
±5 (2, 3, 5 frames )
±2 (2, 3, 5 frames at 1/3 EV, 1/2 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
27 focus points
27 focus points
11 focus points
Crop Factor
1.5
1.5
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
Flash
Built-in
GPS
Optional O-GPS1
Yes
No
ISO Range
100 ~ 819200
100 ~ 51200
200, 400, 800, 1600 (100 with boost)
Image Stabilization
5-axis, up to 5 stops
4.5 stops of shake reduction
No
Intervalometer
Yes
Yes
Yes
Processor
PRIME IV
Prime III
Prime II
Touch Screen
No
No
No
Video Codecs
MPEG-4, H.264
MPEG-4, H.264
Weather Resistance
Yes
Yes
Yes
Performance
Battery Life
390 shots
720 shots
Flash Range
6.00 m
Max Burst Rate
7.0 fps
8.3 fps
1.1 fps
Shutter Speed
1/24000 s (electronic) / 1/6000 s (mechanical) ~ 30 s
Storage
SD/SDHC/SDXC (UHS-I supported)
Dual SD/SDHC/SDXC
SD/SDHC
Production
Battery
D-LI109 lithium-ion battery & charger
Lithium-Ion D-LI90 rechargeable battery & charger
Lithium-Ion D-LI90 rechargeable battery & charger
Debut
2017-01-25
2015-04-22
2010-03-10
Reviews
Neofiliac score
59%
60%
57%
Pros
- Weather-sealed
- Exceptional battery life
- Built-in GPS functionality
- Weather-sealed
- Medium format look
- Weather-sealed
- Affordable for a 645 DSLR
Cons
- Menu not touch-enabled
- Low 7.0 fps burst rate
- Menu not touch-enabled
- 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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