Compare Pentax 645D vs Pentax Q-S1
Connectivity
Ports
Remote Control + USB 2.0
HDMI + Remote Control + USB 2.0
Construction
Form Factor
Mirrorless camera
Image Size
Medium format (645)
1/1.7" (7.44 x 5.58 mm)
Lens Mount
Pentax Q-mount
Microphone
Stereo
Mono
Sensor | Resolution
40 MP (7264 x 5440)
12 MP (4000 x 3000)
Sensor | Type
CCD
BSI-CMOS
Speakers
None
Mono
Dimensions
Size | Depth
119 mm / 4.69 in
34 mm / 1.34 in
Size | Height
117 mm / 4.61 in
58 mm / 2.28 in
Size | Width
156 mm / 6.14 in
105 mm / 4.13 in
Weight
1480 g / 52.30 oz
203 g / 7.17 oz
Display
Display Diagonal
3 inch
3 inch
Display Type
Fixed TFT Color LCD with wide-viewing angle and with AR coating
Fixed TFT-LCD
Resolution
921,000 dots
460,000 dots
Viewfinder | Coverage
98%
Viewfinder | Magnification
0.85x
Viewfinder | Type
Optical (pentaprism)
None
Function
AE Bracketing
±2 (3, 5 frames at 1/7 EV, 1/5 EV, 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)
±3 (3 frames )
Autofocus
11 focus points
Crop Factor
0.6
Exposure Compensation
±5 (at 1/3 EV, 1/2 EV steps)
±3 (at 1/3 EV steps)
Exposure Mode
Auto / Aperture Priority / Shutter Priority / Manual
Auto / Aperture Priority / Shutter Priority / Manual
Flash
Built-in
GPS
No
No
ISO Range
200, 400, 800, 1600 (100 with boost)
100 ~ 12800
Image Stabilization
No
Intervalometer
Yes
Yes
Processor
Prime II
Q Engine
Touch Screen
No
No
Video Codecs
MPEG-4, H.264
Weather Resistance
Yes
No
Performance
Battery Life
250 shots
Flash Range
4.90 m
Max Burst Rate
1.1 fps
5.0 fps
Storage
SD/SDHC
SD/SDHC/SDXC card
Production
Battery
Lithium-Ion D-LI90 rechargeable battery & charger
D-LI68 lithium-ion battery & charger
Debut
2010-03-10
2014-08-04
Reviews
Neofiliac score
57%
43%
Pros
- Medium format look
- Weather-sealed
- Affordable for a 645 DSLR
- Exceptionally compact
- Very light
Cons
- Menu not touch-enabled
- Very low 1.1 fps burst rate
- Very large in size
- Very heavy
- Viewfinder coverage is cropped at 98%
- Menu not touch-enabled
- Poor battery life
- Very low 5.0 fps burst rate
- Very low 12 MP resolution
- Lacks weather sealing
- Not a serious system
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