Sony Alpha 7S III vs. Pentax K-1 II - Camera Comparison

Comparison of the Sony Alpha 7S III and the Pentax K-1 II

Sony Alpha 7S III
86 points
Pentax K-1 II
83 points
Sony Alpha 7S III
Sony Alpha 7S III ✭ Camspex.com
96 mm
129 mm
BODY
Pentax K-1 II
Pentax K-1 II ✭ Camspex.com
110 mm
137 mm
2020
YEARYear of announcement
2018
Aluminium alloy
BODY MATERIAL
Magnesium alloy
Weather
sealed
WEATHER SEALING
Weather
sealed
Sony E
LENS MOUNT
Pentax KAF
n/a
SHUTTER LIFEThe shutter durability as rated by the manufacturer.
300 000 cycles
699 g
1.54 lb
129 x 96 x 78 mm
5.1 x 3.8 x 3.1 in.
DIMENSIONS
& WEIGHTLength x Height x Width and the Weight incl. batteries and memory card
DIMENS.
& WEIGHTLength x Height x Width and the Weight incl. batteries and memory card
137 x 110 x 86 mm
5.4 x 4.3 x 3.4 in.
1010 g
2.23 lb
Sony Alpha 7S III
Pentax K-1 II
12.1 MP
Sony Exmor R CMOS Full Frame Sensor
SENSOR The number of effective megapixels (MP). Sensor manufacturer (if known) and sensor type.
SENSOR Sensor manufacturer (if known) and sensor type.
36.4 MP
CMOS Full Frame Sensor
12.1 MP
EFFECTIVE MEGAPIX The number of effective megapixels (MP).
36.4 MP
35.6 x 23.8 mm
SENSOR SIZE
35.9 x 24.0 mm
4240 x 2832 pixels
MAX. RESOLUTIONMaximum still image resolution
MAX. RESOLUT.Maximum still image resolution
7360 x 4912 pixels
1x
CROP FACTORA 50mm lens on a camera with a crop factor of 1.5x would behave like a 75mm lens on a full-frame camera with a crop factor of 1x (50mm x 1.5 = 75mm)
1x
Bayer array
COLOR FILTER
Bayer array
8.4 μm
PIXEL PITCHThe center-to-center distance between two pixels (photosites) on a sensor. The larger the photosites, the more light they can capture and the lower is the level of visible "noise" in captured images.
4.9 μm
Fixed
LOW-PASS FILTERA low-pass filter blurs fine details of an image to eliminate the moiré and the color artifacts of finely patterned structures. Without a low-pass filter images will appear sharper, but there is also a risk of moiré occurring in certain scenes.
Adjustable low-pass filter simulator
3:2
NATIVE
ASPECT RATIOThe width to height ratio of the "straight out of the camera" images. However, most modern digital cameras are capable of producing images in various aspect ratios.
ASPECT RATIOThe width to height ratio of the "straight out of the camera" images. However, most modern digital cameras are capable of producing images in various aspect ratios.
3:2
Sony Alpha 7S III
DXOMARK
SENSOR
SCOREAnalysis of the camera image quality by dxomark.com
Pentax K-1 II
 
Not tested
OVERALL SCOREDXOMARK Sensor Overall Score shows a camera's sensor quality in terms of noise, ability to render high contrast, formation of colored noise, ability to shoot in low light.
96
 
Not tested
COLOR DEPTHThe color depth performance (DXOMARK Portrait Score) in bits
25.4
 
Not tested
DYNAMIC RANGEThe maximum dynamic range performance (DXOMARK Landscape Score) in exposure value (EV)
14.6
 
Not tested
LOW-LIGHT ISOThe low-light sensitivity performance (DXOMARK Sports Score) in ISO sensitivity value
3280
Sony Alpha 7S III
Pentax K-1 II
COVERAGE:
100 %
REAL SIZE:
0.90
VIEW­FINDERThe viewfinder frame COVERAGE in percent and the real viewfinder SIZE (VF magnification corrected by the crop factor of a camera — this way cameras with different sensor sizes can be compared).
COVERAGE:
100 %
REAL SIZE:
0.70
Electronic (9 437 184 dot OLED)
VF TYPE
Optical (pentaprism)
Articulated
 1 440 000 dot LCD
REAR SCREEN
Articulated 
1 036 800 dot LCD
3 inch
SCREEN SIZE
3.2 inch
LIVE VIEW & TOUCH SCREEN
No top LCD panel
TOP LCD PANELLCD panel on top of the camera which provides information about the current camera settings.
camspex.com — Top plate LCD — Pentax K-1 II
Sony Alpha 7S III
Pentax K-1 II
Hybrid detection
AUTOFOCUS SYSTEM
AF SYSTEM
Phase detection, Contrast detection in Live View mode
AUTOFOCUS MODULE
AF MODULE
SAFOX 12
759 (phase)  
425 (contrast)
759
 (phase)  
425
 (contrast)
FOCUS POINTSAutofocus points
as shown in the figures below:

° linear sensors
° cross-type sensors
° dual cross-type sensors
contrast autofocus areas
33
33
0
CROSS-TYPE FOCUS POINTS
CROSS-TYPE FP
25
camspex.com — Autofocus system — Sony Alpha 7S III
-6
EV

100

The minimum exposure value of the AF working range (at 23°C and ISO 100). The smaller this value, the less light is needed for normal autofocus operation.
-3
camspex.com — Autofocus system — Pentax K-1 II
93 %
AF COVERAGEFrame coverage by AF sensors in percent.
11 %
None
IN-BODY
AF MOTORAn in-body AF motor gives the ability to auto-focus with older lenses which don't have their own motors.
Yes
5-axis sensor shift
IN-BODY IMAGE STABILIZATION
IMAGE STABILIZ.
5-axis sensor shift
Sony Alpha 7S III
Pentax K-1 II
Dual BIONZ XR
IMAGE
PROCESSOR
PRIME IV
14 bit RAW, 10 bit HEIF, JPEG
OUTPUT FORMATS
14 bit RAW, DNG, JPEG
Auto, 80 - 102400
(can be extended to 40 - 409600)
ISO SEN­SITIVITY
Auto, 100 - 819200
10
fps
CONTINUOUS DRIVEMaximum frames per second (fps) in continuous drive mode when using the mechanical shutter.
CONT. DRIVEMaximum frames per second (fps) in continuous drive mode when using the mechanical shutter.
4.4
fps
1000 JPEG shots
1000 RAW shots
MAX. BURSTMaximum number of shots in high-speed continuous drive mode until the buffer is full.
70 JPEG shots
17 RAW shots
2160p @ 120 fps (4K)
MAX. VIDEO RESOLUTION
VIDEO
1080p @ 30 fps (Full HD)
-5/+5 EV  (in 1/3 or 1/2 EV steps)
EXPOSURE COMPENSATION
EXPOSURE COMPENS.
-5/+5 EV  (in 1/3 or 1/2 EV steps)
Bulb,
 
30 sec → 1/8000 sec
SHUTTER SPEED Maximum and minimum possible exposure time in seconds.
Bulb, 
30 sec → 1/8000 sec
Sony Alpha 7S III
Pentax K-1 II

X-SYNC:
1/250
No
built-in
flash

No
flash
BUILT-IN FLASH
No
built-in
flash

No
flash

X-SYNC:
1/200
Yes
HOT SHOE
Yes
USB 3.0 (5 Gbit/sec)
USB
USB 2.0 (480 Mbit/sec)
Microphone port, Headphone port, HDMI
CONNECTIONS
CONNECT.
Microphone port, Headphone port, HDMI
BUILT-IN
DEVICES
CFexpress Type A, SD, SDHC, SDXC (UHS-I/II compatible)
STORAGE TYPES
SD, SDHC, SDXC (UHS-I compatible)
2
CARD SLOTS
2
510
shots
BATTERY LIFEMaximum number of images that can be shot per single battery charge (according to CIPA).
670
shots

Prices on Amazon:

  Compare other cameras:

vs.
Simply type "80d" for Canon EOS 80D or "610" for Nikon D610

  Camera Selection Tool:

Brand














Body


?SLR style body
?Rangefinder style body



Sensor







Viewfinder





Rear Screen



Built-in Devices





Quick Camera Finder

?A good landscape camera should offer high resolution and wide dynamic range; it should also be weather-sealed.
?Excellent autofocus and high-ISO performance, high continuous shooting speed and good buffer capacity are crucial for a good sports & action camera. Weather-sealing is an advantage.
?Cameras for available light photography should maintain a good image quality when shooting at high ISO settings and have an efficient autofocus in low-light conditions.
?Cameras for "connected life" should be lightweight, not too big and offer touch screen as well as built-in WiFi and Bluetooth.
?These cameras are good for beginners. They combine good image quality with affordability and a basic set of features.
 

Sort selected cameras by

?New cameras first
?High-megapixel cameras first
?High DxOMark score first
?More affordable first
?Lightweight bodies first