Pentax K-3 II vs Sony Alpha A77

Pentax K-3 II
Sony Alpha A77

Top Prices

Wex Photographic
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In stock (14 available)
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Amazon UK
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Camera Centre Cardiff LTD
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Amazon UK
Standard delivery: £10.61
In stock
Harrison Cameras Direct
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Value n' Price
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Reasons For

11 Reasons For
Higher megapixel count Edit
The Pentax K-3 II is a 24.35MP digital camera. That's 0.050000000000001MP higher than the Sony Alpha A77 (24.3MP). Read more

The resolution of the images a digital camera produces is measured in megapixels (MP). One megapixel is equal to 1 million pixels and is a result of the pixel width multiplied by the pixel height of the image. While a higher image resolution generally results in sharper images, only a relatively low megapixel count is required when printing the image at a small size or to display it on a computer screen.

A sensor with more megapixels will be able to capture more detailed photos and the image will appear sharper. Images with more megapixels can also be printed at a larger size.

More total megapixel count Edit
The Pentax K-3 II is a 24.71MP digital camera. That's 0.010000000000002MP more than the Sony Alpha A77 (24.7MP).
Smaller maximum aperture Edit
The Pentax K-3 II is a 38 maximum aperture digital camera. That's 2 smaller than the Sony Alpha A77 (36).
47.5mm longer maximum focal length Edit
The Pentax K-3 II has a maximum focal length of 130mm, but the Sony Alpha A77 is only an 82.5mm maximum focal length digital camera (47.5mm shorter).
11% shorter minimum focal length Edit
The Pentax K-3 II is a 24.5mm minimum focal length digital camera. That's 2.5mm shorter than the Sony Alpha A77 (27mm).
7% larger screen size Edit
The Pentax K-3 II is a 3.2" screen digital camera. That's 0.2" larger than the Sony Alpha A77 (3"). Read more

The display diagonal is the size the size of the screen integrated in to the back of the camera. A larger display diagonal makes it easier to see if a shot has turned out as intended. Pocket cameras have smaller display diagonals as full size digital SLRs.

A larger display diagonal makes it easier to take photos and to see if a shot has turned out as intended.

2% shorter Edit
Pentax K-3 II is 102.5mm tall. That's 1.7mm shorter than the Sony Alpha A77 (104.2mm).
5% thinner Edit
The Pentax K-3 II is a 77.5mm deep digital camera. That's 3.4mm thinner than the Sony Alpha A77 (80.9mm).
Narrower Edit
The Pentax K-3 II is a 131.5mm wide digital camera. That's 11.1mm narrower than the Sony Alpha A77 (142.6mm).
720.00 shots per battery charge Edit
The number of shots per battery charge on the Pentax K-3 II is 720.00, but the Sony Alpha A77 only takes 480.00 shots per battery charge. Read more

The number of shots per battery charge is the number of photos that the camera will typically take on a single charge of the battery.

More shots per battery charge means you will have to recharge the battery less frequently and reduces the need to carry a second back up battery.

10 shops are selling it
A greater number of shops increases the chances of the product remaining in stock and also increases the price competition amongst retailers for this digital camera.
9 Reasons For
50 smaller minimum ISO speed Edit
The Sony Alpha A77 is a 50 minimum ISO speed digital camera. That's 50 smaller than the Pentax K-3 II (50).
Vari-angle LCD display Edit
The Sony Alpha A77 has a vari-angle LCD display, however the Pentax K-3 II does not have a vari-angle LCD display.
191,800 pixels higher display resolution Edit
The Sony Alpha A77 is a 1,228,800 pixels display resolution digital camera. That's 191,800 pixels higher than the Pentax K-3 II (1,228,800 pixels).
A little lighter Edit
The Sony Alpha A77 has a weight of 647g, whereas the Pentax K-3 II is a 700g digital camera (53g heavier). Read more

The camera's weight will depend on the type and size of camera. Compact cameras are usually the lightest while digital SLRs will be heavier. Also consider the number and weight of lenses to take when using a SLR.

The lower the camera weight, the easier it will be to carry around and it will also reduce your hand luggage weight when flying.

278g lighter lens weight Edit
The Sony Alpha A77 has a lens weight of 210g, whereas the Pentax K-3 II is a 488g lens weight digital camera (278g heavier).
Shorter lens length Edit
The Sony Alpha A77 is a 69mm lens length digital camera. That's 25mm shorter than the Pentax K-3 II (69mm).
Smaller lens diameter Edit
The Sony Alpha A77 has a lens diameter of 69.5mm, but the Pentax K-3 II is a 78mm lens diameter digital camera (8.5mm bigger).
Cheaper by £50
The Sony Alpha A77 costs £629.00, whereas the Pentax K-3 II is £679.00.
Better selling
The Sony Alpha A77 ranks No. 77827 by number of sales, but the Pentax K-3 II ranks No. 109989.

Reasons Against

9 Reasons Against
Bigger minimum ISO speed Edit
The Pentax K-3 II is a 100 minimum ISO speed digital camera. That's 50 bigger than the Sony Alpha A77 (50).
Does not have a vari-angle LCD display Edit
The Pentax K-3 II does not have a vari-angle LCD display, however the Sony Alpha A77 does.
Lower display resolution Edit
The Pentax K-3 II is a 1,037,000 pixels display resolution digital camera. That's 191,800 pixels lower than the Sony Alpha A77 (1,228,800 pixels).
53g heavier Edit
The Pentax K-3 II has a weight of 700g, but the Sony Alpha A77 is a 647g digital camera (53g lighter). Read more

The camera's weight will depend on the type and size of camera. Compact cameras are usually the lightest while digital SLRs will be heavier. Also consider the number and weight of lenses to take when using a SLR.

The lower the camera weight, the easier it will be to carry around and it will also reduce your hand luggage weight when flying.

278g heavier lens weight Edit
The Pentax K-3 II has a lens weight of 488g, but the Sony Alpha A77 is a 210g lens weight digital camera (278g lighter).
27% longer lens length Edit
The Pentax K-3 II is a 94mm lens length digital camera. That's 25mm longer than the Sony Alpha A77 (69mm).
11% bigger lens diameter Edit
The Pentax K-3 II has a lens diameter of 78mm, however the Sony Alpha A77 is a 69.5mm lens diameter digital camera (8.5mm smaller).
More expensive by £50
The Pentax K-3 II is £50 more expensive than the Sony Alpha A77.
Less popular
The Pentax K-3 II is a less popular choice amongst buyers. It ranks No. 109989 by number of sales in our digital cameras, however the Sony Alpha A77 ranks No. 77827.
12 Reasons Against
1% lower megapixel count Edit
The Sony Alpha A77 is a 24.3MP digital camera. That's 0.050000000000001MP lower than the Pentax K-3 II (24.3MP). Read more

The resolution of the images a digital camera produces is measured in megapixels (MP). One megapixel is equal to 1 million pixels and is a result of the pixel width multiplied by the pixel height of the image. While a higher image resolution generally results in sharper images, only a relatively low megapixel count is required when printing the image at a small size or to display it on a computer screen.

A sensor with more megapixels will be able to capture more detailed photos and the image will appear sharper. Images with more megapixels can also be printed at a larger size.

1% less total megapixel count Edit
The Sony Alpha A77 is a 24.7MP digital camera. That's 0.010000000000002MP less than the Pentax K-3 II (24.7MP).
6% bigger maximum aperture Edit
The Sony Alpha A77 is a 36 maximum aperture digital camera. That's 2 bigger than the Pentax K-3 II (36).
Significantly shorter maximum focal length Edit
The Sony Alpha A77 has a maximum focal length of 82.5mm, whereas the Pentax K-3 II is a 130mm maximum focal length digital camera (47.5mm longer).
10% longer minimum focal length Edit
The Sony Alpha A77 is a 27mm minimum focal length digital camera. That's 2.5mm longer than the Pentax K-3 II (27mm).
Smaller screen size Edit
The Sony Alpha A77 has a screen size of 3". That's 0.2" smaller than the Pentax K-3 II (3"). Read more

The display diagonal is the size the size of the screen integrated in to the back of the camera. A larger display diagonal makes it easier to see if a shot has turned out as intended. Pocket cameras have smaller display diagonals as full size digital SLRs.

A larger display diagonal makes it easier to take photos and to see if a shot has turned out as intended.

Taller Edit
The Sony Alpha A77 is a 104.2mm tall digital camera. That's 1.7mm taller than the Pentax K-3 II (104.2mm).
Thicker Edit
The Sony Alpha A77 has a depth of 80.9mm. That's 3.4mm thicker than the Pentax K-3 II (80.9mm).
8% wider Edit
The Sony Alpha A77 has a width of 142.6mm. That's 11.1mm wider than the Pentax K-3 II (142.6mm).
Only 480.00 shots per battery charge Edit
The Sony Alpha A77 is a digital camera that takes 480.00 shots per battery charge, whereas the Pentax K-3 II only takes 720.00 shots per battery charge. Read more

The number of shots per battery charge is the number of photos that the camera will typically take on a single charge of the battery.

More shots per battery charge means you will have to recharge the battery less frequently and reduces the need to carry a second back up battery.

Not as many stockists
The Sony Alpha A77 is only stocked by 4 stores, however the Pentax K-3 II is stocked by 14 sellers. Read more
Fewer numbers of sellers reduces the chances of the product remaining in stock and also reduces the price competition amongst retailers for this digital camera.
Older by one year
The Sony Alpha A77 is one year older than the Pentax K-3 II.

Average User Rating

No reviews found

Date Released

11 months Ago 23 months Ago

Picture Quality

Camera Type
 SLR
 SLR
Megapixel Count
24.35MP
BEST
24.3MP
Image Stabiliser
 Image stabiliser
 Image stabiliser
Sensor Type
 CMOS
 CMOS
Still Image Resolution
 6016 x 4000
 4608 x 3072
 3072 x 2048
 1920 x 1280
 6000 x 4000
 12416 x 1856
 6000 x 3376
 8192 x 1856
 4240 x 2832
 5536 x 2160
 4240 x 2400
 3872 x 2160
 3008 x 2000
 3008 x 1688
BEST
 6016 x 4000
 4608 x 3072
 3072 x 2048
 1920 x 1280
 6000 x 4000
 12416 x 1856
 6000 x 3376
 8192 x 1856
 4240 x 2832
 5536 x 2160
 4240 x 2400
 3872 x 2160
 3008 x 2000
 3008 x 1688
Maximum Image Resolution
 6016 x 4000
BEST
 6016 x 4000
Image Format
 RAW
 JPG
 EXIF
 RAW
 JPG
 EXIF
Full-Frame Sensor Size
23.5 x 15.6 23.5 x 15.6
Total Megapixel Count
24.71MP
BEST
24.7MP
Image Stabilizer
 Body
 Body
Sensor Format
 Advanced Photo System type-C (APS-C)
 Advanced Photo System type-C (APS-C)
Aspect Ratio
 16:9
 3:2
 16:9
 3:2
BEST

Design

Colour
 Black
 Black
Body Material
 Magnesium
 Metal
 Magnesium
 Metal

Lens System

Optical Zoom
3x Unknown - Click to provide data
Digital Zoom
Unknown - Click to provide data 4x
Maximum Aperture
38
BEST
36
Minimum Aperture
3.5 3.5
Maximum Focal Length
130mm
BEST
82.5mm
Minimum Focal Length
24.5mm
BEST
27mm
Focal Length Range
16 - 85 18 - 55
Lens
 Wide-angle
 Wide-angle
Lens Structure
16/12 8/7
Lens Mount Interface
 Pentax K
 Pentax KA
 Pentax KAF
 Pentax KAF2
 Sony A
 Pentax K
 Pentax KA
 Pentax KAF
 Pentax KAF2
 Sony A
Diaphragm Blades
7 7
Filter Size
72mm 55mm
Lens Mount
 Bayonet
 Bayonet

Focusing

Auto Focus
 single
 continuous
 Single Auto Focus
 Continuous Auto Focus
 single
 continuous
 Single Auto Focus
 Continuous Auto Focus
Auto Focus Lock
Unknown - Click to provide data
 Auto focus lock
Closest Focusing Distance
0.35m Unknown - Click to provide data
Auto Focus Point
27 Unknown - Click to provide data
Focus
 Auto
 Manual
 Auto/Manual
 Auto
 Manual
 Auto/Manual
Focus Mode
 TTL
 TTL

Light Exposure

Light Exposure Mode
 shutter priority
 aperture priority
 Auto
 Manual
 Shutter priority AE
 Aperture priority AE
 shutter priority
 aperture priority
 Auto
 Manual
 Shutter priority AE
 Aperture priority AE
BEST
ISO Speed
 Auto
 100
 200
 51200
 50
 80
 800
 12800
 25600
 25
 Auto
 100
 200
 51200
 50
 80
 800
 12800
 25600
 25
Maximum ISO Speed
51,200 51,200
Minimum ISO Speed
100 50
BEST
Auto Exposure Lock
 Auto exposure lock
Unknown - Click to provide data
Light Metering Mode
 Evaluative (Multi-pattern)
 Centre-weighted
 Spot
 Evaluative (Multi-pattern)
 Centre-weighted
 Spot
Light Exposure Correction
 ±5EV (1/2; 1/3 EV step)
 ±5EV (1/2; 1/3 EV step)
Light Exposure Control
 Program AE
 Program AE

Shutter

Maximum Camera Shutter Speed
30s 30s
Minimum Camera Shutter Speed
1s 1s
Camera Shutter
 Electronic
 Electronic

Flash

Flash Mode
 Fill-in
 Flash off
 Red-eye reduction
 Slow synchronization
 Auto
 Fill-in
 Flash off
 Red-eye reduction
 Slow synchronization
 Auto
Flash Sync-Speed
1s Unknown - Click to provide data
External Flash Connector
 External flash connector
Unknown - Click to provide data
Flash Exposure Correction
 ±3EV (1/2; 1/3 EV step)
 ±3EV (1/2; 1/3 EV step)
BEST
Shoe Mounting Point
 Shoe mounting point
Unknown - Click to provide data
Shoe Mounting Point
 Hot
 Hot

Video

Full HD Video
 Full HD video
 Full HD video
Maximum Video Resolution
 1920 x 1080
 1920 x 1080
Video Format
 AVI
 MOV
 MPEG
 MPEG4
 H.264
 AVC
BEST
 AVI
 MOV
 MPEG
 MPEG4
 H.264
 AVC
Analog Signal Format
 PAL
 NTSC
BEST
 PAL
 NTSC
Resolution and Capture Speed
 1920x1080@60fps
 1920x1080@50fps
 1920x1080@30fps
 1280x720@60fps
 1920x1080@25fps
 1280x720@50fps
 1280x720@30fps
 1280x720@24fps
BEST
 1920x1080@60fps
 1920x1080@50fps
 1920x1080@30fps
 1280x720@60fps
 1920x1080@25fps
 1280x720@50fps
 1280x720@30fps
 1280x720@24fps
Video Recording
 Video recording
 Video recording
HD Type
 Full HD
 Full HD

Audio

Built-In Microphone
 Built-in microphone
 Built-in microphone
Audio Format
 MP4
 AC3
 LC-AAC
 AAC++
 MP4
 AC3
 LC-AAC
 AAC++
BEST
Voice Recording
Unknown - Click to provide data
 Voice recording

Memory

Memory Card
 SDXC
 SDHC
 SD
 Eye-Fi
 FLU
 MS PRO
 MS PRO Duo
 MSXC
 MS XC-HG Duo
 SDXC
 SDHC
 SD
 Eye-Fi
 FLU
 MS PRO
 MS PRO Duo
 MSXC
 MS XC-HG Duo

Display

Screen Size
3.2"
BEST
3"
Display
 LCD
 LCD
Vari-Angle LCD Display
 Vari-angle LCD display
 Vari-angle LCD display
BEST
Field of View
Unknown - Click to provide data 100%
Touch Sensitive Screen
 Touch sensitive screen
Unknown - Click to provide data
Display Resolution
1,037,000 pixels 1,228,800 pixels
BEST
Second Display
 Second display
Unknown - Click to provide data

Viewfinder

Viewfinder Screen Size
Unknown - Click to provide data 0.5"
Lens Magnification Ratio
0.95x Unknown - Click to provide data
Viewfinder
 Optical
 Electronic
 Optical
 Electronic

Ports & Interfaces

PictBridge
 PictBridge
Unknown - Click to provide data
AV Output
 AV output
Unknown - Click to provide data
DC-In Jack
 DC-in jack
Unknown - Click to provide data
USB Connector Type
 Micro-USB B
 Micro-USB B
HDMI Port
 HDMI port
 HDMI port
Microphone in Socket
 Microphone in socket
Unknown - Click to provide data
HDMI Connector
 Micro
 Micro
USB Version
 3.0
BEST
 3.0
USB Connector
 Micro-USB B
 Micro-USB
 Micro-USB B
 Micro-USB

Camera

GPS
 GPS
Unknown - Click to provide data
White Balance Mode
 Auto
 Tungsten
 Fluorescent
 Cloudy
 Daylight
 Flash
 Incandescent
 Shade
 Auto
 Tungsten
 Fluorescent
 Cloudy
 Daylight
 Flash
 Incandescent
 Shade
Shooting Mode
 Shutter priority
 Aperture priority
 Manual
 Sensitivity priority
 Shutter priority
 Aperture priority
 Manual
 Sensitivity priority
Photo Effect
 Black&White
 Sepia
 Neutral
 Vivid
 Black&White
 Sepia
 Neutral
 Vivid
Self-Timer
2,12 2,10
Histogram
 Histogram
 Histogram
Dioptre Correction
 Dioptre correction
 Dioptre correction
Anti-Dust Function
 Anti-dust function
 Anti-dust function
Image Editing Mode
 Resizing
 Rotating
 Crop
 Resizing
 Rotating
 Crop
Camera File System
 DCF 2.0
 Exif 2.3
 DCF
 Exif
 DCF 2.0
 Exif 2.3
 DCF
 Exif
Live View
Unknown - Click to provide data
 Live view
Playback Mode
 Movie
 Single image
 Slide show
 Movie
 Single image
 Slide show
Saturation Adjustment
 Saturation adjustment
 Saturation adjustment
Contrast Adjustment
 Contrast adjustment
 Contrast adjustment
Brightness Adjustment
 Brightness adjustment
 Brightness adjustment
Diopter Adjustment
-2.5 - 1.5 -4 - 3
Scene Mode
 Landscape
 Portrait
 Night
 Night portrait
 Sports
 Sunset
 Twilight
 Landscape
 Portrait
 Night
 Night portrait
 Sports
 Sunset
 Twilight
Display Language
 DAN
 DUT
 GRE
 CZE
 RUS
 ENG
 FIN
 FRE
 DEU
 ITA
 POL
 POR
 ESP
 SWE
 TUR
 INC
 DAN
 DUT
 GRE
 CZE
 RUS
 ENG
 FIN
 FRE
 DEU
 ITA
 POL
 POR
 ESP
 SWE
 TUR
 INC

Weight & Dimensions

Weight
700g 647g
BEST
Height
102.5mm
BEST
104.2mm
Depth
77.5mm
BEST
80.9mm
Width
131.5mm
BEST
142.6mm
Lens Weight
488g 210g
BEST
Lens Length
94mm 69mm
BEST
Lens Diameter
78mm 69.5mm
BEST
Weight Including Battery
785g 726g
BEST

Battery

Power Source
 Battery
 Battery
Battery
 Lithium-Ion (Li-Ion)
BEST
 Lithium-Ion (Li-Ion)
Supported Battery
1 1
Battery Size
D-LI90 NP-FM500H
Battery Capacity
Unknown - Click to provide data 1,650mAh
Shot Per Battery Charge
720 shots
BEST
480 shots
Battery Voltage
Unknown - Click to provide data 7.2V

Operational Conditions

Operating Temperature Range
-10 - 40 Unknown - Click to provide data

System Requirements

Windows Operating System
 Windows operating system
Unknown - Click to provide data

Packaging Content

Included Cable
 USB
 Micro-USB
 USB
 Micro-USB
BEST
Battery Included
Unknown - Click to provide data
 Battery included
Included Battery Charger
Unknown - Click to provide data
 Included battery charger
Carrying Case
 Carrying case
 Carrying case

Networking

WiFi Connectivity
Unknown - Click to provide data
 WiFi connectivity
Near Field Communication
Unknown - Click to provide data
 Near field communication

Other Features

Video Recording
 Video recording
Unknown - Click to provide data
Built-In Flash
Unknown - Click to provide data
 Built-in flash
USB Connectivity
 USB connectivity
Unknown - Click to provide data

Technical Details

Image Processor
 BIONZ
 BIONZ
Self-Timer
 Self-timer
 Self-timer
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