Pentax 645D vs Canon PowerShot SD770 IS (Digital IXUS 85 IS)

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Main
Model
Price

launch
Announced
Body type
Camera subcategory
Sensor
Effective pixels
Max resolution
Sensor size
Sensor type
Processor
Image ratio w:h
Sensor photo detectors
Other resolutions
Image
ISO
Boosted ISO (minimum)
White balance presets
Custom white balance
Image stabilization
Uncompressed format
JPEG quality levels
Photography features
Minimum shutter speed
Maximum shutter speed
Aperture priority
Shutter priority
Manual exposure mode
Subject / scene modes
Built-in flash
External flash
Flash modes
Continuous drive
Self-timer
Metering modes
Exposure compensation
AE Bracketing
Flash range
Screen / viewfinder
Articulated LCD
Screen size
Screen dots
Touch screen
Screen type
Viewfinder type
Viewfinder coverage
Viewfinder magnification
Live view
Videography features
Microphone
Speaker
Resolutions
Optics & Focus
Autofocus
Digital zoom
Manual focus
Number of focus points
Lens mount
Focal length multiplier
Focal length (equiv.)
Optical zoom
Maximum aperture
Normal focus range
Macro focus range
Physical
Weight (inc. batteries)
Dimensions
Environmentally sealed
Battery
Battery details
Storage
Storage types
Storage included
Connectivity
USB
Remote control
HDMI
Other features
Orientation sensor
Timelapse recording
GPS
Samples
Videos

Main
Model
Pentax 645D
Price

Canon PowerShot SD770 IS (Digital IXUS 85 IS)

Main
Model
Canon PowerShot SD770 IS (Digital IXUS 85 IS)
Price

launch
Announced
Mar 10, 2010
Body type
Camera subcategory
Large SLR
Sensor
Effective pixels
40 megapixels
Max resolution
7264 x 5440
Sensor size
Medium format (44 x 33 mm)
Sensor type
CCD
Processor
Prime II
Image ratio w:h
4:3
Sensor photo detectors
40 megapixels
Other resolutions
—
Image
ISO
Auto, 200, 400, 800, 1600 (100 with boost)
Boosted ISO (minimum)
100
White balance presets
8
Custom white balance
Yes (3)
Image stabilization
No
Uncompressed format
RAW
JPEG quality levels
Good, Better, Best
Photography features
Minimum shutter speed
30 sec
Maximum shutter speed
1/4000 sec
Aperture priority
Yes
Shutter priority
Yes
Manual exposure mode
Yes
Subject / scene modes
No
Built-in flash
No
External flash
Yes (Hot-shoe, Wireless plus sync connector)
Flash modes
Auto, On, Off, Red-eye, Slow Sync, Rear Curtain
Continuous drive
1.1 fps
Self-timer
Yes (2 or 10 sec)
Metering modes
- Multi
- Center-weighted
- Spot
Exposure compensation
±5 (at 1/3 EV, 1/2 EV steps)
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)
Flash range
—
Screen / viewfinder
Articulated LCD
Fixed
Screen size
3″
Screen dots
921,000
Touch screen
No
Screen type
TFT Color LCD with wide-viewing angle and with AR coating
Viewfinder type
Optical (pentaprism)
Viewfinder coverage
98%
Viewfinder magnification
0.85×
Live view
—
Videography features
Microphone
Stereo
Speaker
None
Resolutions
—
Optics & Focus
Autofocus
- Phase Detect
- Multi-area
- Selective single-point
- Single
- Continuous
- Live View
Digital zoom
No
Manual focus
Yes
Number of focus points
11
Lens mount
Pentax 645AF2
Focal length multiplier
1×
Focal length (equiv.)
—
Optical zoom
—
Maximum aperture
—
Normal focus range
—
Macro focus range
—
Physical
Weight (inc. batteries)
1480 g (3.26 lb / 52.21 oz)
Dimensions
156 x 117 x 119 mm (6.14 x 4.61 x 4.69″)
Environmentally sealed
Yes (Water and dust resistant)
Battery
Battery Pack
Battery details
Lithium-Ion D-LI90 rechargeable battery & charger
Storage
Storage types
SD/SDHC
Storage included
None
Connectivity
USB
USB 2.0 (480 Mbit/sec)
Remote control
Yes (Optional, wired or wireless)
HDMI
—
Other features
Orientation sensor
Yes
Timelapse recording
Yes
GPS
None
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launch
Announced
Mar 13, 2008
Body type
Camera subcategory
Ultracompact
Sensor
Effective pixels
10 megapixels
Max resolution
3648 x 2736
Sensor size
1/2.3" (6.17 x 4.55 mm)
Sensor type
CCD
Processor
—
Image ratio w:h
4:3, 16:9
Sensor photo detectors
10 megapixels
Other resolutions
2648 x 2048, 2816 x 2112, 2272 x 1704, 1600 x 1200, 640 x 480
Image
ISO
Auto, High Auto, 80 ,100, 200, 400, 800, 1600
Boosted ISO (minimum)
—
White balance presets
5
Custom white balance
Yes
Image stabilization
Optical
Uncompressed format
No
JPEG quality levels
Super-Fine, Fine, Normal
Photography features
Minimum shutter speed
15 sec
Maximum shutter speed
1/1500 sec
Aperture priority
No
Shutter priority
No
Manual exposure mode
—
Subject / scene modes
—
Built-in flash
Yes
External flash
No
Flash modes
Auto, On, Off, FE Lock, Slow, Red Eye Reduction, Auto Red Eye Correction
Continuous drive
1.4 fps
Self-timer
Yes (2 or 10 sec)
Metering modes
—
Exposure compensation
±2 (at 1/3 EV steps)
AE Bracketing
—
Flash range
3.50 m
Screen / viewfinder
Articulated LCD
No
Screen size
2.5″
Screen dots
230,000
Touch screen
No
Screen type
—
Viewfinder type
Optical (tunnel)
Viewfinder coverage
—
Viewfinder magnification
—
Live view
Yes
Videography features
Microphone
None
Speaker
None
Resolutions
640 x 480 @ 30/1/0.5 fps, 320 x 240 @ 30 fps, 160 x 120 @ 15 fps
Optics & Focus
Autofocus
- Contrast Detect (sensor)
- Multi-area
- Single
- Face Detection
- Live View
Digital zoom
Yes (4 x)
Manual focus
No
Number of focus points
9
Lens mount
—
Focal length multiplier
—
Focal length (equiv.)
35–105 mm
Optical zoom
3×
Maximum aperture
F2.8–4.9
Normal focus range
30 cm (11.81″)
Macro focus range
3 cm (1.18″)
Physical
Weight (inc. batteries)
170 g (0.37 lb / 6.00 oz)
Dimensions
86 x 54 x 20 mm (3.39 x 2.13 x 0.79″)
Environmentally sealed
No
Battery
Battery Pack
Battery details
Lithium-Ion NB-6L battery & charger
Storage
Storage types
SD/SDHC/MMC card
Storage included
32 MB SD card
Connectivity
USB
USB 2.0 (480 Mbit/sec)
Remote control
No
HDMI
No
Other features
Orientation sensor
Yes
Timelapse recording
Yes
GPS
None
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