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Compare Canon EOS Rebel T7 vs Pentax K-S1 vs Pentax 645D

Connectivity

Ports
HDMI + Remote Control + USB 2.0
HDMI + Remote Control + USB 2.0
Remote Control + USB 2.0
Wireless Connectivity
802.11b/g/n with NFC

Construction

Form Factor
DSLR camera
DSLR camera
Image Size
APS-C (22.3 x 14.9 mm)
APS-C (23.5 x 15.6 mm)
Medium format (645)
Lens Mount
Canon EF-mount
Pentax K-mount
Microphone
Mono
Stereo
Stereo
Sensor | Resolution
24 MP (6000 x 4000)
20 MP (5472 x 3648)
40 MP (7264 x 5440)
Sensor | Type
CMOS
CMOS
CCD
Speakers
Mono
Mono
None

Dimensions

Size | Depth
78 mm / 3.07 in
70 mm / 2.76 in
119 mm / 4.69 in
Size | Height
101 mm / 3.98 in
93 mm / 3.66 in
117 mm / 4.61 in
Size | Width
129 mm / 5.08 in
121 mm / 4.76 in
156 mm / 6.14 in
Weight
475 g / 16.78 oz
558 g / 19.72 oz
1480 g / 52.30 oz

Display

Display Diagonal
3 inch
3 inch
3 inch
Display Type
Fixed TFT LCD
Fixed TFT-LCD
Fixed TFT Color LCD with wide-viewing angle and with AR coating
Resolution
920,000 dots
921,000 dots
921,000 dots
Viewfinder | Coverage
95%
100%
98%
Viewfinder | Magnification
0.8x
0.95x
0.85x
Viewfinder | Type
Optical (pentamirror)
Optical (pentaprism)
Optical (pentaprism)

Function

AE Bracketing
±2 (3 frames at 1/3 EV, 1/2 EV steps)
±3 (3 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
9 focus points
11 focus points
11 focus points
Crop Factor
1.6
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
Built-in
GPS
No
Optional O-GPS-1
No
ISO Range
ISO 100 ~ 6400, expandable to 12800
100 ~ 51200
200, 400, 800, 1600 (100 with boost)
Image Stabilization
No
3-axis
No
Intervalometer
Yes
Processor
Digic 4+
Prime MII
Prime II
Touch Screen
No
No
No
Video Codecs
MPEG-4, H.264
H.264
Weather Resistance
No
No
Yes

Performance

Battery Life
500 shots
410 shots
Flash Range
9.20 m
10.00 m
Max Burst Rate
3.0 fps
5.4 fps
1.1 fps
Storage
SD/SDHC/SDXC card
SD/SDHC/SDXC
SD/SDHC

Production

Battery
Lithium-Ion LP-E10 rechargeable battery & charger
D-LI109 lithium-ion battery and charger
Lithium-Ion D-LI90 rechargeable battery & charger
Debut
2018-02-26
2014-08-27
2010-03-10

Reviews

Neofiliac score
48%
50%
57%
Pros
  • Rather compact
  • Quite light
  • Rather compact
  • Medium format look
  • Weather-sealed
  • Affordable for a 645 DSLR
Cons
  • Menu not touch-enabled
  • Very low 3.0 fps burst rate
  • Lacks weather sealing
  • Viewfinder coverage is cropped at 95%
  • Viewfinder with low 0.8x magnification
  • 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 1.1 fps burst rate
  • Very large in size
  • Very heavy
  • Viewfinder coverage is cropped at 98%

Price

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