Compare Pentax K-S1 vs Pentax K-1 Mark II vs Sigma fp
Connectivity
Ports
HDMI + Remote Control + USB 2.0
HDMI + Headphone + Microphone + Remote Control + USB 2.0
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 1
Wireless Connectivity
802.11b/g/n
Construction
Form Factor
DSLR camera
DSLR camera
Mirrorless camera
Image Size
APS-C (23.5 x 15.6 mm)
Full frame (35.9 x 24 mm)
Full frame (35.9 x 23.9 mm)
Lens Mount
Pentax K-mount
Pentax K-mount
Leica L-mount
Microphone
Stereo
Stereo
Stereo
Sensor | Resolution
20 MP (5472 x 3648)
36 MP (7360 x 4912)
25 MP (6000 x 4000)
Sensor | Type
CMOS
CMOS
BSI-CMOS
Speakers
Mono
Mono
Mono
Dimensions
Size | Depth
70 mm / 2.76 in
86 mm / 3.39 in
45 mm / 1.77 in
Size | Height
93 mm / 3.66 in
110 mm / 4.33 in
70 mm / 2.76 in
Size | Width
121 mm / 4.76 in
137 mm / 5.39 in
113 mm / 4.45 in
Weight
558 g / 19.72 oz
1010 g / 35.69 oz
422 g / 14.91 oz
Display
Display Diagonal
3 inch
3.2 inch
3.2 inch
Display Type
Fixed TFT-LCD
Tilting TFT LCD
Fixed TFT LCD
Resolution
921,000 dots
1,037,000 dots
2,100,000 dots
Viewfinder | Coverage
100%
100%
Viewfinder | Magnification
0.95x
0.7x
Viewfinder | Type
Optical (pentaprism)
Optical (pentaprism)
None
Function
AE Bracketing
±3 (3 frames at 1/3 EV, 1/2 EV steps)
±5 (2, 3, 5 frames at 1/3 EV, 1/2 EV steps)
±3 (3, 5 frames at 1/3 EV steps)
Autofocus
11 focus points
33 focus points (25 cross type)
49 focus points
Crop Factor
1.5
1.0
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 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-GPS-1
Yes
No
ISO Range
100 ~ 51200
100 ~ 819200
100 ~ 25600 (expands to 6 ~ 102400)
Image Stabilization
3-axis
5 stops
No
Intervalometer
Yes
Yes
Processor
Prime MII
PRIME IV
Touch Screen
No
No
Yes
Video Codecs
H.264
MPEG-4, H.264
MPEG-4, H.264
Weather Resistance
No
Yes
Yes
Performance
Battery Life
410 shots
670 shots
280 shots
Flash Range
10.00 m
Max Burst Rate
5.4 fps
4.4 fps
18.0 fps
Storage
SD/SDHC/SDXC
Dual SD/SDHC/SDXC (UHS-I)
SD/SDHC/SDXC (UHS-II supported)
Production
Battery
D-LI109 lithium-ion battery and charger
D-LI90 lithium-ion battery & charger
BP-51 lithium-ion battery and charger
Debut
2014-08-27
2018-02-21
2019-07-11
Reviews
Neofiliac score
50%
64%
75%
Pros
- Rather compact
- Long battery life
- Built-in GPS functionality
- 5 stops of IBIS
- Weather-sealed
- High 18.0 fps burst rate
- Exceptionally compact
- Quite light
- Weather-sealed
Cons
- Menu not touch-enabled
- Low 5.4 fps burst rate
- Low 20 MP resolution
- Lacks weather sealing
- Tacky design
- Menu not touch-enabled
- Very low 4.4 fps burst rate
- Very heavy
- Viewfinder with low 0.7x magnification
- Poor battery life
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