Compare Pentax 645Z vs Pentax Q-S1
Connectivity
Ports
HDMI + Microphone + Remote Control + USB 3.0
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 645AF2
Pentax Q-mount
Microphone
Mono
Mono
Sensor | Resolution
51 MP (8256 x 6192)
12 MP (4000 x 3000)
Sensor | Type
CMOS
BSI-CMOS
Speakers
Stereo
Mono
Dimensions
Size | Depth
123 mm / 4.84 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
1550 g / 54.77 oz
203 g / 7.17 oz
Display
Display Diagonal
3.2 inch
3 inch
Display Type
Tilting TFT LCD
Fixed TFT-LCD
Resolution
1,037,000 dots
460,000 dots
Viewfinder | Coverage
98%
Viewfinder | Magnification
0.62x
Viewfinder | Type
Optical (pentaprism)
None
Function
AE Bracketing
±5 (2, 3, 5 frames at 1/3 EV, 1/2 EV, 1 EV, 2 EV steps)
±3 (3 frames )
Autofocus
27 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
Optional via O-GPS1
No
ISO Range
to, ISO 100 ~ 204800
100 ~ 12800
Image Stabilization
No
Intervalometer
Yes
Yes
Processor
PRIME III
Q Engine
Touch Screen
No
No
Video Codecs
MPEG-4, H.264
MPEG-4, H.264
Weather Resistance
Yes
No
Performance
Battery Life
650 shots
250 shots
Flash Range
4.90 m
Max Burst Rate
3.0 fps
5.0 fps
Storage
Dual SD/SDHC/SDXC slots
SD/SDHC/SDXC card
Production
Battery
D-LI90 lithium-ion battery and charger
D-LI68 lithium-ion battery & charger
Debut
2014-04-15
2014-08-04
Reviews
Neofiliac score
62%
43%
Pros
- Long battery life
- Medium format look
- Exceptionally high 51 MP resolution
- Weather-sealed
- Affordable for a 645 DSLR
- Exceptionally compact
- Very light
Cons
- Menu not touch-enabled
- Very low 3.0 fps burst rate
- Very large in size
- Very heavy
- Viewfinder coverage is cropped at 98%
- Viewfinder with low 0.62x magnification
- 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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