Pentax K-500 vs Sony Alpha A5100

(210)
Pentax K-500
Sony Alpha A5100

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Reasons For

7 Reasons For
6% smaller maximum aperture Edit
The Pentax K-500 is a 38 maximum aperture digital camera. That's 2 smaller than the Sony Alpha A5100 (36).
Marginally longer maximum focal length Edit
The Pentax K-500 has a maximum focal length of 83mm, however the Sony Alpha A5100 is only a 75mm maximum focal length digital camera (8mm shorter).
50% higher maximum ISO speed Edit
The Pentax K-500 is a 51,200 maximum ISO speed digital camera. That's 25,600 higher than the Sony Alpha A5100 (25,600).
99x shorter flash sync-speed Edit
The Pentax K-500 has a flash sync-speed of 0.01s, however the Sony Alpha A5100 is a 1s flash sync-speed digital camera (0.99s longer).
50% higher JPEG frame rate Edit
The Pentax K-500 is a 60fps JPEG frame rate digital camera. That's 30fps higher than the Sony Alpha A5100 (30fps).
Higher lens magnification ratio Edit
The Pentax K-500 is a 0.92x lens magnification ratio digital camera. That's 0.7x higher than the Sony Alpha A5100 (0.22x). Read more

The lens magnification ratio is the ratio between the true size of the object being photographed and the size of the object when projected on to the camera's sensor.

A higher lens magnification ratio is important for macro photography as it allows you to focus on very small object very close to the lens.

480.00 shots per battery charge Edit
The Pentax K-500 takes 480.00 shots per battery charge, however the Sony Alpha A5100 only takes 400.00 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.

19 Reasons For
A lot higher megapixel count Edit
The Sony Alpha A5100 has a megapixel count of 24.3MP, whereas the Pentax K-500 is only a 16.28MP digital camera (8.02MP lower). 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.

A lot more total megapixel count Edit
The Sony Alpha A5100 has a total megapixel count of 24.7MP, but the Pentax K-500 is only a 16.49MP digital camera (8.21MP less).
13% shorter minimum focal length Edit
The Sony Alpha A5100 has a minimum focal length of 24mm, however the Pentax K-500 is a 27mm minimum focal length digital camera (3mm longer).
Seven diaphragm blades Edit
The number of diaphragm blades on the Sony Alpha A5100 is seven, but the Pentax K-500 only has six diaphragm blades.
One hundred and sixty-eight more auto focus points Edit
The Sony Alpha A5100 is a 179.00 auto focus point digital camera, whereas the Pentax K-500 only has 11.00 auto focus points.
Touch sensitive screen Edit
The Sony Alpha A5100 has a touch sensitive screen, however the Pentax K-500 does not have a touch sensitive screen.
A little higher display resolution Edit
The Sony Alpha A5100 has a display resolution of 921,600 pixels, but the Pentax K-500 is only a 921,000 pixels display resolution digital camera (600 pixels lower).
HDMI port Edit
The Sony Alpha A5100 has an HDMI port, but the Pentax K-500 does not. Read more

A HDMI (High-Definition Multimedia Interface) port is an interface to transfer audio and video data between devices such as digital cameras, computer monitors, TVs and projectors.

A HDMI port on the camera allows you to connect the camera directly to a compatible TV for easy playback of your photos.

366g lighter Edit
The Sony Alpha A5100 is a 224g digital camera. That's 366g lighter than the Pentax K-500 (224g). 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.

33.7mm shorter Edit
Sony Alpha A5100 is 62.8mm tall, but the Pentax K-500 is a 96.5mm tall digital camera (33.7mm taller).
34.3mm thinner Edit
The Sony Alpha A5100 is a 35.7mm deep digital camera, whereas the Pentax K-500 is a 70mm deep digital camera (34.3mm thicker).
19.4mm narrower Edit
The Sony Alpha A5100 is a 109.6mm wide digital camera, whereas the Pentax K-500 is a 129mm wide digital camera (19.4mm wider).
Lighter lens weight Edit
The Sony Alpha A5100 is a 116g lens weight digital camera. That's 109g lighter than the Pentax K-500 (116g).
2x shorter lens length Edit
The Sony Alpha A5100 has a lens length of 29.9mm, whereas the Pentax K-500 is a 67.5mm lens length digital camera (37.6mm longer).
6% smaller lens diameter Edit
The Sony Alpha A5100 is a 64.7mm lens diameter digital camera. That's 3.3mm smaller than the Pentax K-500 (64.7mm).
WiFi connectivity Edit
The Sony Alpha A5100 supports WiFi connectivity, however the Pentax K-500 does not support WiFi connectivity. Read more

WiFi connectivity allows you upload photos to your computer and the internet without connecting the camera to the computer with a cable.

WiFi connectivity makes it easier to upload your photos as you will not need a cable. Most cameras will also allow you to print photos via Wifi.

Near field communication Edit
The Sony Alpha A5100 supports near field communication, however the Pentax K-500 does not.
£170 cheaper
The Sony Alpha A5100 costs £169.99 less than the Pentax K-500.
Available from 3 shops
A greater number of stores increases the chances of this digital camera remaining in stock and also increases the price competition amongst retailers for the product.

Reasons Against

20 Reasons Against
50% lower megapixel count Edit
The Pentax K-500 is a 16.28MP digital camera. That's 8.02MP lower than the Sony Alpha A5100 (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.

50% less total megapixel count Edit
The Pentax K-500 is a 16.49MP digital camera. That's 8.21MP less than the Sony Alpha A5100 (24.7MP).
3mm longer minimum focal length Edit
The Pentax K-500 is a 27mm minimum focal length digital camera. That's 3mm longer than the Sony Alpha A5100 (24mm).
One less diaphragm blades Edit
The Pentax K-500 has six diaphragm blades, however the Sony Alpha A5100 only has seven diaphragm blades.
Only 11.00 auto focus points Edit
The number of auto focus points on the Pentax K-500 is 11.00, but the Sony Alpha A5100 only has 179.00 auto focus points.
Does not have a touch sensitive screen Edit
The Pentax K-500 does not have a touch sensitive screen, however the Sony Alpha A5100 has a touch sensitive screen.
1% lower display resolution Edit
The Pentax K-500 is a 921,000 pixels display resolution digital camera. That's 600 pixels lower than the Sony Alpha A5100 (921,600 pixels).
Does not have an HDMI port Edit
The Pentax K-500 does not have an HDMI port, but the Sony Alpha A5100 does. Read more

A HDMI (High-Definition Multimedia Interface) port is an interface to transfer audio and video data between devices such as digital cameras, computer monitors, TVs and projectors.

A HDMI port on the camera allows you to connect the camera directly to a compatible TV for easy playback of your photos.

Vastly heavier Edit
The Pentax K-500 has a weight of 590g, however the Sony Alpha A5100 is a 224g digital camera (366g 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.

Taller Edit
The Pentax K-500 has a height of 96.5mm. That's 33.7mm taller than the Sony Alpha A5100 (62.8mm).
Thicker Edit
Pentax K-500 is 70mm deep. That's 34.3mm thicker than the Sony Alpha A5100 (35.7mm).
Wider Edit
Pentax K-500 is 129mm wide. That's 19.4mm wider than the Sony Alpha A5100 (109.6mm).
A lot heavier lens weight Edit
The Pentax K-500 has a lens weight of 225g, however the Sony Alpha A5100 is a 116g lens weight digital camera (109g lighter).
Longer lens length Edit
The Pentax K-500 is a 67.5mm lens length digital camera. That's 37.6mm longer than the Sony Alpha A5100 (29.9mm).
3.3mm bigger lens diameter Edit
The Pentax K-500 has a lens diameter of 68mm, whereas the Sony Alpha A5100 is a 64.7mm lens diameter digital camera (3.3mm smaller).
Does not support WiFi connectivity Edit
The Pentax K-500 does not support WiFi connectivity, however the Sony Alpha A5100 supports WiFi connectivity. Read more

WiFi connectivity allows you upload photos to your computer and the internet without connecting the camera to the computer with a cable.

WiFi connectivity makes it easier to upload your photos as you will not need a cable. Most cameras will also allow you to print photos via Wifi.

Does not support near field communication Edit
The Pentax K-500 does not support near field communication, however the Sony Alpha A5100 does.
More expensive by £170
The Pentax K-500 is £169.99 more expensive than the Sony Alpha A5100.
Fewer sellers
The Pentax K-500 is only stocked by 2 shops, but the Sony Alpha A5100 is stocked by 5 sellers. Read more
The fewer the number of sellers that stock the product, the lower the competition amongst sellers to keep prices low.
Older by over one year
The Pentax K-500 is 14 months older than the Sony Alpha A5100.
7 Reasons Against
A little bigger maximum aperture Edit
The Sony Alpha A5100 has a maximum aperture of 36, whereas the Pentax K-500 is a 38 maximum aperture digital camera (2 smaller).
Shorter maximum focal length Edit
The Sony Alpha A5100 is a 75mm maximum focal length digital camera. That's 8mm shorter than the Pentax K-500 (75mm).
Vastly lower maximum ISO speed Edit
The Sony Alpha A5100 has a maximum ISO speed of 25,600, however the Pentax K-500 is a 51,200 maximum ISO speed digital camera (25,600 higher).
Longer flash sync-speed Edit
The Sony Alpha A5100 is a 1s flash sync-speed digital camera. That's 0.99s longer than the Pentax K-500 (1s).
Lower JPEG frame rate Edit
The Sony Alpha A5100 has a JPEG frame rate of 30fps, but the Pentax K-500 is a 60fps JPEG frame rate digital camera (30fps higher).
Vastly lower lens magnification ratio Edit
The Sony Alpha A5100 has a lens magnification ratio of 0.22x, however the Pentax K-500 is a 0.92x lens magnification ratio digital camera (0.7x higher). Read more

The lens magnification ratio is the ratio between the true size of the object being photographed and the size of the object when projected on to the camera's sensor.

A higher lens magnification ratio is important for macro photography as it allows you to focus on very small object very close to the lens.

Eighty less shots per battery charge Edit
The number of shots per battery charge on the Sony Alpha A5100 is 400.00, but the Pentax K-500 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.

Awards

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chip.com.my: Outstanding
Ephotozine: Highly Recommended
gagadget.com: Recommended
PhotographyBlog.com: Essential
photoreview.com.au: Editor's Choice
reviewed.com: Editor's Choice
tomsguide.com: Editor's Choice
ua.gecid.com: Easy to Use

Average Expert Rating

Average User Rating

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Date Released

42 months Ago 29 months Ago

Picture Quality

Camera Type
 SLR
BEST
 SLR
Megapixel Count
16.28MP 24.3MP
BEST
Image Stabiliser
 Image stabiliser
 Image stabiliser
Sensor Type
 CMOS
 CMOS
Still Image Resolution
 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
 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
Maximum Image Resolution
 6000 x 4000
 6000 x 4000
BEST
Image Format
 RAW
 JPG
 RAW
 JPG
Full-Frame Sensor Size
23.7 x 15.7 23.5 x 15.6
Total Megapixel Count
16.49MP 24.7MP
BEST
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

Lens System

Optical Zoom
Unknown - Click to provide data 3.1x
Digital Zoom
Unknown - Click to provide data 8x
Maximum Aperture
38
BEST
36
Minimum Aperture
3.5 3.5
Maximum Focal Length
83mm
BEST
75mm
Minimum Focal Length
27mm 24mm
BEST
Focal Length Range
18 - 55 16 - 50
Lens Structure
12/9 9/8
Lens Mount Interface
 Pentax K
 Pentax KA
 Pentax KAF
 Pentax KAF2
 Sony E
 Pentax K
 Pentax KA
 Pentax KAF
 Pentax KAF2
 Sony E
Aspheric Element
1 Unknown - Click to provide data
Diaphragm Blades
6 7
BEST
Filter Size
52mm 40.5mm
Lens Mount
 Bayonet
 Bayonet

Focusing

Auto Focus
 single
 continuous
 spot
 selective
 tracking
 Single Auto Focus
 Continuous Auto Focus
 Spot Auto Focus
 Selective Auto Focus
 Face detection
 Tracking Auto Focus
BEST
 single
 continuous
 spot
 selective
 tracking
 Single Auto Focus
 Continuous Auto Focus
 Spot Auto Focus
 Selective Auto Focus
 Face detection
 Tracking Auto Focus
Auto Focus Lock
Unknown - Click to provide data
 Auto focus lock
Auto Focus Assist Beam
 Auto focus assist beam
Unknown - Click to provide data
Auto Focus Point
11 179
BEST
Focus Points Selection
 Auto
 Manual
 Auto
 Manual
Focus
 Auto
 Manual
 Auto/Manual
 Auto
 Manual
 Auto/Manual
Smile Detection
Unknown - Click to provide data
 Smile detection
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
ISO Speed
 Auto
 50
 64
 80
 100
 125
 160
 200
 250
 320
 400
 500
 640
 800
 1000
 1250
 1600
 2000
 2250
 2500
 3200
 4000
 5000
 6400
 12800
 51200
 25600
 16000
 25
 8000
 10000
 Auto
 50
 64
 80
 100
 125
 160
 200
 250
 320
 400
 500
 640
 800
 1000
 1250
 1600
 2000
 2250
 2500
 3200
 4000
 5000
 6400
 12800
 51200
 25600
 16000
 25
 8000
 10000
Maximum ISO Speed
51,200
BEST
25,600
Minimum ISO Speed
100 100
Auto Exposure Lock
 Auto exposure lock
 Auto exposure lock
Light Metering Mode
 Evaluative (Multi-pattern)
 Centre-weighted
 Spot
 Evaluative (Multi-pattern)
 Centre-weighted
 Spot
Light Exposure Correction
 ± 5EV (1/3EV step)
BEST
 ± 5EV (1/3EV step)
Light Exposure Control
 Program AE
 Program AE

Shutter

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

Flash

Flash Mode
 Red-eye reduction
 Slow synchronization
 Fill-in
 Flash off
 Auto
 Red-eye reduction
 Slow synchronization
 Fill-in
 Flash off
 Auto
Flash Guide
12m Unknown - Click to provide data
Flash Sync-Speed
0.01s
BEST
1s
External Flash Connector
 External flash connector
Unknown - Click to provide data
Flash Exposure Compensation
 Flash exposure compensation
 Flash exposure compensation
Flash Exposure Correction
 ±3EV (1/2, 1/3, 1 EV step)
 ±3EV (1/2, 1/3, 1 EV step)
BEST

Video

Maximum Video Resolution
 1920 x 1080
 1920 x 1080
JPEG Frame Rate
60fps
BEST
30fps
Video Format
 MPEG
 MPEG4
 H.264
 MP4
 AVCHD
 AVC
 MPEG
 MPEG4
 H.264
 MP4
 AVCHD
 AVC
Analog Signal Format
 PAL
 NTSC
BEST
 PAL
 NTSC
Video Resolution
 1920 x 1080
 1280 x 720
 640 x 480
 1920 x 1080
 1280 x 720
 640 x 480
Video Recording
 Video recording
 Video recording
HD Type
 Full HD
 Full HD

Audio

Built-In Microphone
 Built-in microphone
 Built-in microphone
Voice Recording
 Voice recording
 Voice recording
Audio System
 Stereo
 Stereo
Noise Reduction
 Noise reduction
 Noise reduction

Memory

Memory Card
 SDXC
 SDHC
 SD
 Eye-Fi
 MS PRO
 MS PRO Duo
 MS Pro-HG
 MS Pro-HG Duo
 MSXC
 MS XC-HG Duo
 SDXC
 SDHC
 SD
 Eye-Fi
 MS PRO
 MS PRO Duo
 MS Pro-HG
 MS Pro-HG Duo
 MSXC
 MS XC-HG Duo
Memory Slot
1 1

Display

Screen Size
3" 3"
Display
 TFT
BEST
 TFT
Vari-Angle LCD Display
 Vari-angle LCD display
Unknown - Click to provide data
Field of View
100% Unknown - Click to provide data
Touch Sensitive Screen
 Touch sensitive screen
 Touch sensitive screen
BEST
Display Resolution
921,000 pixels 921,600 pixels
BEST
Second Display
 Second display
Unknown - Click to provide data

Viewfinder

Lens Magnification Ratio
0.92x
BEST
0.22x
Viewfinder
 Optical
 Optical

Ports & Interfaces

PictBridge
 PictBridge
Unknown - Click to provide data
HDMI Port
 HDMI port
 HDMI port
BEST
HDMI Connector
 Micro
 Micro
USB Version
 2.0
 2.0
USB Connector
 Micro-USB
 Micro-USB

Camera

White Balance Mode
 Auto
 Manual
 Tungsten
 Fluorescent
 Cloudy
 Daylight
 Shade
 Flash
 Custom modes
 Fine
 Fluorescent L
 Incandescent
 Underwater
 Auto
 Manual
 Tungsten
 Fluorescent
 Cloudy
 Daylight
 Shade
 Flash
 Custom modes
 Fine
 Fluorescent L
 Incandescent
 Underwater
Shooting Mode
 Auto
 Program
 Scene
 Shutter priority
 Aperture priority
 Movie
 Manual
 Auto
 Program
 Scene
 Shutter priority
 Aperture priority
 Movie
 Manual
Photo Effect
 Muted
 Neutral
 Black&White
 Vivid
 Muted
 Neutral
 Black&White
 Vivid
Self-Timer
2,12 2,10
Histogram
 Histogram
 Histogram
Maximum Playback Zoom
16x Unknown - Click to provide data
Image Editing Mode
 Resizing
 Rotating
 Crop
 Resizing
 Rotating
 Crop
Camera File System
 DCF 2.0
 Exif 2.3
 RAW
 DCF
 Exif
 MPF
 DCF 2.0
 Exif 2.3
 RAW
 DCF
 Exif
 MPF
Live View
 Live view
Unknown - Click to provide data
Playback Mode
 Single image
 Slide show
 Movie
 Single image
 Slide show
 Movie
Built-In Processor
Unknown - Click to provide data BIONZ X
Diopter Adjustment
-2.5 - 1.5 Unknown - Click to provide data
Playback Mode
 Slideshow
 Slideshow
Scene Mode
 Backlight
 Snow
 Candlelight
 Children
 Close-up (macro)
 Landscape
 Museum
 Night
 Night portrait
 Portrait
 Sports
 Sunset
 Surf
 Pet
 Self-portrait
 Backlight
 Snow
 Candlelight
 Children
 Close-up (macro)
 Landscape
 Museum
 Night
 Night portrait
 Portrait
 Sports
 Sunset
 Surf
 Pet
 Self-portrait
Display Language
 DAN
 DUT
 GRE
 CZE
 RUS
 ENG
 FIN
 FRE
 DEU
 ITA
 JPN
 POL
 POR
 ESP
 SWE
 TUR
 HUN
 KOR
 CHI (TR)
 CHI (SIMPL)
 DAN
 DUT
 GRE
 CZE
 RUS
 ENG
 FIN
 FRE
 DEU
 ITA
 JPN
 POL
 POR
 ESP
 SWE
 TUR
 HUN
 KOR
 CHI (TR)
 CHI (SIMPL)

Weight & Dimensions

Weight
590g 224g
BEST
Height
96.5mm 62.8mm
BEST
Depth
70mm 35.7mm
BEST
Width
129mm 109.6mm
BEST
Lens Weight
225g 116g
BEST
Lens Length
67.5mm 29.9mm
BEST
Lens Diameter
68mm 64.7mm
BEST
Weight Including Battery
650g 283g
BEST

Battery

Power Source
 Battery
 USB
 Battery
 USB
Battery
 Lithium-Ion (Li-Ion)
 Lithium-Ion (Li-Ion)
Supported Battery
1 1
Battery Size
D-LI109 NP-FW50
Battery Capacity
Unknown - Click to provide data 1,080mAh
Shot Per Battery Charge
480 shots
BEST
400 shots
Battery Voltage
Unknown - Click to provide data 7.4V

Packaging Content

Bundled Software
SILKYPIX Developer Studio 3.0 LE Unknown - Click to provide data
AC Adapter Included
Unknown - Click to provide data
 AC adapter included
Included Cable
 USB
 USB
Battery Included
 Battery included
 Battery included
Included Battery Charger
 Included battery charger
Unknown - Click to provide data
Hand Strap
 Hand strap
Unknown - Click to provide data

Networking

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

Other Features

Built-In Flash
 Built-in flash
 Built-in flash
Aspect Ratio
 3:2
 3:2

Technical Details

Built-In Speaker
Unknown - Click to provide data
 Built-in speaker
Self-Timer
Unknown - Click to provide data
 Self-timer
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