Comparison of the Canon EOS 77D and the Pentax K-3 III
Canon EOS 77D
61 points
Pentax K-3 III
85 points
Canon EOS 77D
100 mm
131 mm
BODY
Pentax K-3 III
104 mm
135 mm
2017
YEARYear of announcement
2021
Glass fiber reinforced plastic with aluminium alloy chassis
BODY MATERIAL
Magnesium alloy
Not
weather
sealed
weather
sealed
WEATHER SEALING
Weather
sealed
sealed
Canon EF / EF-S
LENS MOUNT
Pentax KAF2
n/a
SHUTTER LIFEThe shutter durability as rated by the manufacturer.
300 000 cycles
540 g
1.19 lb
1.19 lb
131 x 100 x 76 mm
5.2 x 3.9 x 3 in.
5.2 x 3.9 x 3 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
135 x 104 x 74 mm
5.3 x 4.1 x 2.9 in.
5.3 x 4.1 x 2.9 in.
820 g
1.81 lb
1.81 lb
Canon EOS 77D
Pentax K-3 III
24.2 MP
Canon 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.
25.7 MP
Sony IMX571 Exmor RS CMOS APS-C Sensor
24.2 MP
EFFECTIVE MEGAPIX The number of effective megapixels (MP).
25.7 MP
22.3 x 14.9 mm
SENSOR SIZE
23.3 x 15.5 mm
6000 x 4000 pixels
MAX. RESOLUTIONMaximum still image resolution
MAX. RESOLUT.Maximum still image resolution
6192 x 4128 pixels
1.6x
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
Bayer array
COLOR FILTER
Bayer array
3.7 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.
3.76 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.
None (with anti-aliasing 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
78
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
13.3
DYNAMIC RANGEThe maximum dynamic range performance (DXOMARK Landscape Score) in exposure value (EV)
Not tested
971
LOW-LIGHT ISOThe low-light sensitivity performance (DXOMARK Sports Score) in ISO sensitivity value
Not tested
Canon EOS 77D
Pentax K-3 III
COVERAGE:
95 %
95 %
REAL SIZE:
0.51
0.51
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:
0.70
0.70
Optical
(pentamirror)
(pentamirror)
VF TYPE
Optical
(pentaprism)
(pentaprism)
Articulated
1 036 800 dot LCD
1 036 800 dot LCD
REAR SCREEN
Fixed
1 620 000 dot LCD
1 620 000 dot LCD
3 inch
SCREEN SIZE
3.2 inch
LIVE VIEW & TOUCH SCREEN
TOP LCD PANELLCD panel on top of the camera which provides information about the current camera settings.
Canon EOS 77D
Pentax K-3 III
Phase detection, On-chip phase detection using the dual pixel imaging sensor in Live View mode
AUTOFOCUS SYSTEM
AF SYSTEM
Phase detection, Contrast detection in Live View mode
Dual Pixel CMOS AF
AUTOFOCUS MODULE
AF MODULE
SAFOX 13
45
45
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
101
101
45
CROSS-TYPE FOCUS POINTS
CROSS-TYPE FP
25
-3
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.-4
32 %
AF COVERAGEFrame coverage by AF sensors in percent.
32 %
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
Digital IS only in video mode
IN-BODY IMAGE STABILIZATION
IMAGE STABILIZ.
5-axis sensor shift
Canon EOS 77D
Pentax K-3 III
DIGIC 7
IMAGE
PROCESSOR
PROCESSOR
PRIME V
14 bit RAW, JPEG
OUTPUT FORMATS
14 bit RAW, DNG, JPEG
Auto, 100 - 25600
(can be extended to ISO 51200)
(can be extended to ISO 51200)
ISO SENSITIVITY
Auto, 100 - 1600000
6
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.
12
fps
fps
Unlimited JPEG shots
27 RAW shots
27 RAW shots
MAX. BURSTMaximum number of shots in high-speed continuous drive mode until the buffer is full.
37 JPEG shots
32 RAW shots
32 RAW shots
1080p @ 60 fps (Full HD)
MAX. VIDEO RESOLUTION
VIDEO
2160p @ 30 fps (4K)
-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 → 1/4000 sec
30 sec → 1/4000 sec
SHUTTER SPEED Maximum and minimum possible exposure time in seconds.
Bulb,
30 sec → 1/8000 sec
30 sec → 1/8000 sec
Canon EOS 77D
Pentax K-3 III
X-SYNC:
1/200
GUIDE
NUMBER:
NUMBER:
GN:
12
BUILT-IN FLASH
No
built-in
flash
built-in
flash
No
flash
X-SYNC:
1/200
Yes
HOT SHOE
Yes
USB 2.0 (480 Mbit/sec)
USB
USB 3.2 (20 Gbit/sec)
Microphone port, HDMI
CONNECTIONS
CONNECT.
Microphone port, Headphone port, HDMI
BUILT-IN
DEVICES
DEVICES
SD, SDHC, SDXC (UHS-I compatible)
STORAGE TYPES
SD, SDHC, SDXC (UHS-I/II compatible)
1
CARD SLOTS
2
600
shots
shots
BATTERY LIFEMaximum number of images that can be shot per single battery charge (according to CIPA).
800
shots
shots