Compare Pentax 645D vs Leica S3
Connectivity
Ports
Remote Control + USB 2.0
USB, HDMI, Audio, Hotshoe, cable release
Wireless Connectivity
GPS, WiFi
Construction
Battery | Capacity
2300 mAh
Image Size
Medium format (645)
Medium-format 45 x 30 mm (Leica ProFormat)
Lens Mount
S-mount
Material
Magnesium alloy
Microphone
Stereo
Sensor | Resolution
40 MP (7264 x 5440)
64 MP
Sensor | Type
CCD
Speakers
None
Dimensions
Size | Depth
119 mm / 4.69 in
80 mm
Size | Height
117 mm / 4.61 in
120 mm
Size | Width
156 mm / 6.14 in
160 mm
Weight
1480 g / 52.30 oz
1260 g
Display
Display Diagonal
3 inch
3"
Display Type
Fixed TFT Color LCD with wide-viewing angle and with AR coating
Resolution
921,000 dots
0.92 M dots
Viewfinder | Coverage
98%
OVF Pentaprism, 0.87x, 98%
Viewfinder | Magnification
0.85x
Viewfinder | Type
Optical (pentaprism)
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)
Autofocus
11 focus points
Phase detection
Crop Factor
0.6
Exposure Compensation
±5 (at 1/3 EV, 1/2 EV steps)
Exposure Mode
Auto / Aperture Priority / Shutter Priority / Manual
Flash Sync Speed
1/125 s
GPS
No
ISO Range
200, 400, 800, 1600 (100 with boost)
Image Stabilization
No
Intervalometer
Yes
Processor
Prime II
Maestro II
Touch Screen
No
Video Recording
4K 24p, FHD 30p (full-width)
Weather Resistance
Yes
Performance
Buffer Size
2 GB
Dynamic Range
15 stops
Max Burst Rate
1.1 fps
3 fps
Shutter Speed
1/4000 s - 8 min
Storage
SD/SDHC
CF, SD
Production
Battery
Lithium-Ion D-LI90 rechargeable battery & charger
S BP-PRO1
Debut
2010-03-10
2020-03-06
Made In
Germany
Reviews
Neofiliac score
57%
Pros
- Medium format look
- Weather-sealed
- Affordable for a 645 DSLR
Cons
- Menu not touch-enabled
- Very low 1.1 fps burst rate
- Very large in size
- Very heavy
- Viewfinder coverage is cropped at 98%
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