Comparison of the Sigma sd Quattro and the Pentax K-70
Sigma sd Quattro
47 points
Pentax K-70
64 points
Sigma sd Quattro
95 mm
147 mm
BODY
Pentax K-70
93 mm
126 mm
2016
YEARYear of announcement
2016
Magnesium alloy
BODY MATERIAL
Magnesium alloy
Weather
sealed
sealed
WEATHER SEALING
Weathersealed
Sigma SA
LENS MOUNT
Pentax KAF
n/a
SHUTTER LIFEThe shutter durability as rated by the manufacturer.
n/a
662 g
1.46 lb
1.46 lb
147 x 95 x 91 mm
5.8 x 3.7 x 3.6 in.
5.8 x 3.7 x 3.6 in.
DIMENSIONS
& WEIGHTLength x Height x Width and the Weight incl. batteries and memory card
& 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
& WEIGHTLength x Height x Width and the Weight incl. batteries and memory card
126 x 93 x 74 mm
5 x 3.7 x 2.9 in.
5 x 3.7 x 2.9 in.
688 g
1.52 lb
1.52 lb
Sigma sd Quattro
Pentax K-70
19.6 MP
Foveon X3 Quattro CMOS APS-C Sensor
SENSOR The number of effective megapixels (MP). Sensor manufacturer (if known) and sensor type.
SENSOR Sensor manufacturer (if known) and sensor type.
24.2 MP
CMOS APS-C Sensor
19.6 MP
EFFECTIVE MEGAPIX The number of effective megapixels (MP).
24.2 MP
23.5 x 15.5 mm
SENSOR SIZE
23.7 x 15.7 mm
5440 x 3616 pixels
MAX. RESOLUTIONMaximum still image resolution
MAX. RESOLUT.Maximum still image resolution
6000 x 4000 pixels
1.5x
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)
1.5x
Full Color
COLOR FILTER
Bayer array
4.3 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.
3.9 μm
None
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.
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
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.
Not tested
Not tested
DYNAMIC RANGEThe maximum dynamic range performance (DXOMARK Landscape Score) in exposure value (EV)
Not tested
Not tested
LOW-LIGHT ISOThe low-light sensitivity performance (DXOMARK Sports Score) in ISO sensitivity value
Not tested
Sigma sd Quattro
Pentax K-70
COVERAGE:
100 %
100 %
REAL SIZE:
0.73
0.73
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 %
100 %
REAL SIZE:
0.63
0.63
Electronic (2 359 296 dot LCD)
VF TYPE
Optical (pentaprism)
Fixed
1 620 000 dot LCD
1 620 000 dot LCD
REAR SCREEN
Articulated
921 600 dot LCD
921 600 dot LCD
3 inch
SCREEN SIZE
3 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.
No top LCD panel
Sigma sd Quattro
Pentax K-70
Hybrid detection
AUTOFOCUS SYSTEM
AF SYSTEM
Phase detection, Contrast detection in Live View mode
AUTOFOCUS MODULE
AF MODULE
SAFOX X
9 (phase)
9 (contrast)
9
(phase) 9
(contrast)
FOCUS POINTSAutofocus points
as shown in the figures below:
° linear sensors
° cross-type sensors
° dual cross-type sensors
contrast autofocus areas
as shown in the figures below:
° linear sensors
° cross-type sensors
° dual cross-type sensors
contrast autofocus areas
11
11
0
CROSS-TYPE FOCUS POINTS
CROSS-TYPE FP
9
-1
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
26 %
AF COVERAGEFrame coverage by AF sensors in percent.
12 %
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.
AF MOTORAn in-body AF motor gives the ability to auto-focus with older lenses which don't have their own motors.
Yes
No
IN-BODY IMAGE STABILIZATION
IMAGE STABILIZ.
Sensor shift
Sigma sd Quattro
Pentax K-70
Dual TRUE III
IMAGE
PROCESSOR
PROCESSOR
PRIME M II
14 bit RAW, JPEG
OUTPUT FORMATS
14 bit RAW, DNG, JPEG
100 - 6400
ISO SENSITIVITY
Auto, 100 - 102400
3.7
fps
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.
6
fps
fps
12 JPEG shots
12 RAW shots
12 RAW shots
MAX. BURSTMaximum number of shots in high-speed continuous drive mode until the buffer is full.
40 JPEG shots
10 RAW shots
10 RAW shots
No Video Mode
MAX. VIDEO RESOLUTION
VIDEO
1080p @ 30 fps (Full HD)
-5/+5 EV (in 1/3 EV steps)
EXPOSURE COMPENSATION
EXPOSURE COMPENS.
-5/+5 EV (in 1/3 or 1/2 EV steps)
Bulb,
30 sec → 1/4000 sec
30 sec → 1/4000 sec
SHUTTER SPEED Maximum and minimum possible exposure time in seconds.
Bulb,
30 sec → 1/6000 sec
30 sec → 1/6000 sec
Sigma sd Quattro
Pentax K-70
X-SYNC:
1/180
No
built-in
flash
built-in
flash
No
flash
BUILT-IN FLASH
GUIDE
NUMBER:
NUMBER:
GN:
12
X-SYNC:
1/180
Yes
HOT SHOE
Yes
USB 3.0 (5 Gbit/sec)
USB
USB 2.0 (480 Mbit/sec)
HDMI
CONNECTIONS
CONNECT.
Microphone port, HDMI
BUILT-IN
DEVICES
DEVICES
SD, SDHC, SDXC
STORAGE TYPES
SD, SDHC, SDXC (UHS-I compatible)
1
CARD SLOTS
1
235
shots
shots
BATTERY LIFEMaximum number of images that can be shot per single battery charge (according to CIPA).
410
shots
shots
