Nikon D810 vs Pentax K-3

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Nikon D810
Pentax K-3

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Reasons For

6 Reasons For
12.95MP higher megapixel count Edit
The Nikon D810 has a megapixel count of 36.3MP, whereas the Pentax K-3 is only a 23.35MP digital camera (12.95MP 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.

12.38MP more total megapixel count Edit
The Nikon D810 has a total megapixel count of 37.09MP, but the Pentax K-3 is only a 24.71MP digital camera (12.38MP less).
Twenty-four more auto focus points Edit
The Nikon D810 is a 51.00 auto focus point digital camera, whereas the Pentax K-3 only has 27.00 auto focus points.
36 smaller minimum ISO speed Edit
The Nikon D810 has a minimum ISO speed of 64, but the Pentax K-3 is a 100 minimum ISO speed digital camera (36 bigger).
Shorter Edit
Nikon D810 is 81.5mm tall, but the Pentax K-3 is a 100mm tall digital camera (18.5mm taller).
Seventeen more awards
The Nikon D810 has 18 awards, whereas the Pentax K-3 has 1 award.
15 Reasons For
0.34x bigger optical zoom Edit
The Pentax K-3 is a 0.34x optical zoom digital camera. That's 0.34x bigger than the Nikon D810 (0.34x). Read more

The optical zoom of a camera is a measure of how much the camera can zoom in to the subject using the camera's lens system. An optical zoom is superior to a digital zoom because the zoom is achieved using the optics of lens which means that the full extent of the digital sensor is always used to capture the image.

A larger optical zoom allows you to zoom in on the subject without having to move closer. Compared to a digital zoom, using an optical zoom does not result in a loss of image quality.

38 smaller maximum aperture Edit
The Pentax K-3 is a 38 maximum aperture digital camera. That's 38 smaller than the Nikon D810 (38).
Longer maximum focal length Edit
The Pentax K-3 has a maximum focal length of 82.5mm, but the Nikon D810 is only a unknownmm maximum focal length digital camera (82.5mm shorter).
75% higher maximum ISO speed Edit
The Pentax K-3 is a 51,200 maximum ISO speed digital camera. That's 38,400 higher than the Nikon D810 (51,200).
Higher JPEG frame rate Edit
The Pentax K-3 is a 60fps JPEG frame rate digital camera. That's 60fps higher than the Nikon D810 (60fps).
Wider field of view Edit
The Pentax K-3 is a 100% field of view digital camera. That's 100% wider than the Nikon D810 (100%).
Higher display resolution Edit
The Pentax K-3 is a 1,037,000 pixels display resolution digital camera. That's 1,037,000 pixels higher than the Nikon D810 (1,037,000 pixels).
Higher lens magnification ratio Edit
The Pentax K-3 is a 0.95x lens magnification ratio digital camera. That's 0.25x higher than the Nikon D810 (0.95x). 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.

Vastly bigger eye relief Edit
The Pentax K-3 has an eye relief of 20.5mm, however the Nikon D810 is only a unknownmm Eye relief digital camera (20.5mm smaller). Read more

Eye relief (also known as eye point) refers to how far away from the eye piece your eye can be and you can still see the full frame of the image that will be taken.

A larger eye relief distance is useful for people who wear glasses, meaning that they can't put their eye directly on the eye piece.

Lighter Edit
The Pentax K-3 has a weight of 715g, but the Nikon D810 is an 880g digital camera (165g 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.

Thinner Edit
The Pentax K-3 is a 77.5mm deep digital camera. That's 45.5mm thinner than the Nikon D810 (77.5mm).
14.5mm narrower Edit
The Pentax K-3 is a 131.5mm wide digital camera. That's 14.5mm narrower than the Nikon D810 (131.5mm).
Two supported batteries Edit
The Pentax K-3 is a two supported battery digital camera, whereas the Nikon D810 only has one supported battery.
Longer maximum battery life Edit
Pentax K-3 is 6h battery life, but the Nikon D810 is only a unknownh battery life digital camera (6h shorter). Read more

The maximum battery life is the maximum length of time that the camera could run for if not excessively using the playback features.

A longer battery life allows you use the camera for more days before you need to change the battery or recharge it.

Cheaper by £780
The Pentax K-3 costs £780 less than the Nikon D810.

Reasons Against

8 Reasons Against
Vastly lower maximum ISO speed Edit
The Nikon D810 has a maximum ISO speed of 12,800, however the Pentax K-3 is a 51,200 maximum ISO speed digital camera (38,400 higher).
A lot lower lens magnification ratio Edit
The Nikon D810 has a lens magnification ratio of 0.7x, however the Pentax K-3 is a 0.95x lens magnification ratio digital camera (0.25x 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.

Heavier Edit
The Nikon D810 is an 880g digital camera. That's 165g heavier than the Pentax K-3 (715g). 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.

A lot thicker Edit
The Nikon D810 is a 123mm deep digital camera, whereas the Pentax K-3 is a 77.5mm deep digital camera (45.5mm thinner).
14.5mm wider Edit
The Nikon D810 is a 146mm wide digital camera, whereas the Pentax K-3 is a 131.5mm wide digital camera (14.5mm narrower).
One less supported battery Edit
The Nikon D810 is a one supported battery digital camera, whereas the Pentax K-3 only has two supported batteries.
£780 more expensive
The Nikon D810 is more expensive than the Pentax K-3 by £780.
Not currently available
This digital camera does not seem to be currently available. Read more
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7 Reasons Against
56% lower megapixel count Edit
The Pentax K-3 is a 23.35MP digital camera. That's 12.95MP lower than the Nikon D810 (23.35MP). 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.

51% less total megapixel count Edit
The Pentax K-3 is a 24.71MP digital camera. That's 12.38MP less than the Nikon D810 (24.71MP).
Only 27.00 auto focus points Edit
The Pentax K-3 is a 27.00 auto focus point digital camera, whereas the Nikon D810 only has 51.00 auto focus points.
36% bigger minimum ISO speed Edit
The Pentax K-3 is a 100 minimum ISO speed digital camera. That's 36 bigger than the Nikon D810 (100).
Taller Edit
Pentax K-3 is 100mm tall. That's 18.5mm taller than the Nikon D810 (100mm).
Older by seven months
The Pentax K-3 is seven months older than the Nikon D810.
Seventeen less awards
The Pentax K-3 has only received 1 award, whereas the Nikon D810 has received 18 awards.

Awards

18 Awards
01net.com: 4 Star
Digital Versus: 5 Star
Digitaltrends.com: Editor's Choice
Ephotozine: Editor's Choice
hi-tech.mail.ru/: Recommended
Les Numeriques.com: 5 Star
ljudochbild.se: Especially Recommended
Lydogbilde.no: Especially Recommended 6 star
lydogbillede.dk: Especially Recommended 6 Star
PC Mag: Editor's Choice
pcmagazine.ru: 5 Star
PhotographyBlog.com: Highly Recommended
photoreview.com.au: Editor's Choice
Pocket Lint: Editor's Choice
reviewed.com: Editor's Choice
tomsguide.com: Editor's Choice
Trusted Reviews: Recommended
What Digital Camera: Gold
1 Award
Imaging Resource.com: Dave's Pick

Average Expert Rating

Average User Rating

Date Released

30 months Ago 38 months Ago

Picture Quality

Camera Type
 SLR
 SLR
Megapixel Count
36.3MP
BEST
23.35MP
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
 6016 x 4000
 4608 x 3072
 3072 x 2048
 1920 x 1280
BEST
Maximum Image Resolution
 7360 x 4912
BEST
 7360 x 4912
Image Format
 RAW
 JPG
 RAW
 JPG
BEST
Full-Frame Sensor Size
35.9 x 24 23.5 x 15.6
Total Megapixel Count
37.09MP
BEST
24.71MP
Image Stabilizer
 Body
 Body
Sensor Format
 Full-frame
 Full-frame
Aspect Ratio
 3:2
 3:2
BEST

Design

Colour
 Black
 Black
Body Material
 Magnesium
 Stainless steel
 Steel
 Magnesium
 Stainless steel
 Steel

Lens System

Optical Zoom
Unknown - Click to provide data 0.34x
Maximum Aperture
Unknown - Click to provide data 38
Minimum Aperture
Unknown - Click to provide data 3.5
Maximum Focal Length
Unknown - Click to provide data 82.5mm
Minimum Focal Length
Unknown - Click to provide data 27mm
Focal Length Range
Unknown - Click to provide data 18 - 55
Lens
 Standard
 Standard
Lens Structure
Unknown - Click to provide data 11/8
Lens Mount Interface
 Pentax K
 Pentax KA
 Pentax KAF
 Pentax KAF2
 Pentax KAF3
 Pentax K
 Pentax KA
 Pentax KAF
 Pentax KAF2
 Pentax KAF3
Diaphragm Blades
Unknown - Click to provide data 7
Filter Size
Unknown - Click to provide data 52mm
Lens Mount
 Bayonet
 Bayonet

Focusing

Auto Focus
 single
 continuous
 servo
 tracking
 Single Auto Focus
 Continuous Auto Focus
 Servo Auto Focus
 Tracking Auto Focus
 spot
 selective
 Spot Auto Focus
 Selective Auto Focus
 single
 continuous
 servo
 tracking
 Single Auto Focus
 Continuous Auto Focus
 Servo Auto Focus
 Tracking Auto Focus
 spot
 selective
 Spot Auto Focus
 Selective Auto Focus
Auto Focus Lock
Unknown - Click to provide data
 Auto focus lock
Auto Focus Assist Beam
Unknown - Click to provide data
 Auto focus assist beam
Closest Focusing Distance
Unknown - Click to provide data 0.4m
Auto Focus Point
51
BEST
27
Focus Points Selection
 Auto
 Auto
Focus
 Auto
 Manual
 Auto/Manual
 Auto
 Manual
 Auto/Manual
Focus Mode
 TTL
 TTL

Light Exposure

Light Exposure Mode
 Auto
 shutter priority
 aperture priority
 Manual
 Shutter priority AE
 Aperture priority AE
 Auto
 shutter priority
 aperture priority
 Manual
 Shutter priority AE
 Aperture priority AE
BEST
ISO Speed
 64
 80
 800
 12800
 Auto
 100
 200
 51200
 64
 80
 800
 12800
 Auto
 100
 200
 51200
Maximum ISO Speed
12,800 51,200
BEST
Minimum ISO Speed
64
BEST
100
Auto Exposure Lock
Unknown - Click to provide data
 Auto exposure lock
Light Metering Mode
 Centre-weighted
 Spot
 Matrix
 Evaluative (Multi-pattern)
 Centre-weighted
 Spot
 Matrix
 Evaluative (Multi-pattern)
Light Exposure Correction
 ±5EV (1/2; 1/3 EV step)
 ±5EV (1/2; 1/3 EV step)
BEST

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
 Manual
 Red-eye reduction
 Slow synchronization
 Auto
 Flash on
 Flash off
 Manual
 Red-eye reduction
 Slow synchronization
 Auto
 Flash on
 Flash off
Flash Guide
Unknown - Click to provide data 13m
Flash Sync-Speed
Unknown - Click to provide data 1s
External Flash Connector
Unknown - Click to provide data
 External flash connector
Flash Exposure Compensation
 Flash exposure compensation
 Flash exposure compensation
Flash Exposure Correction
 ±3EV (1/2, 1/3, 1 EV step)
BEST
 ±3EV (1/2, 1/3, 1 EV step)
Shoe Mounting Point
 Shoe mounting point
 Shoe mounting point
Shoe Mounting Point
 Hot
 Hot

Video

Full HD Video
Unknown - Click to provide data
 Full HD video
Maximum Video Resolution
 1920 x 1080
 1920 x 1080
JPEG Frame Rate
Unknown - Click to provide data 60fps
Video Format
 MPEG
 MPEG4
 H.264
 AVI
 MOV
 AVC
 MPEG
 MPEG4
 H.264
 AVI
 MOV
 AVC
Analog Signal Format
 PAL
 NTSC
 PAL
 NTSC
BEST
Video Resolution
 1920 x 1080
 1280 x 720
 640 x 480
 1920 x 1080
 1280 x 720
 640 x 480
Resolution and Capture Speed
 1920x1080@60fps
 1280×720@60fps
 1280x720@50fps
 1920x1080@30fps
 1920x1080@25fps
 1920x1080@60fps
 1280×720@60fps
 1280x720@50fps
 1920x1080@30fps
 1920x1080@25fps
Video Recording
 Video recording
 Video recording
HD Type
 Full HD
 Full HD

Audio

Built-In Microphone
 Built-in microphone
 Built-in microphone
Audio Format
 PCM
BEST
 PCM
Audio System
 Stereo
 Stereo
Noise Reduction
Unknown - Click to provide data
 Noise reduction

Memory

Memory Card
 SDXC
 SDHC
 SD
 CF+
 Eye-Fi
 SDXC
 SDHC
 SD
 CF+
 Eye-Fi
Memory Slot
Unknown - Click to provide data 2

Display

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

Viewfinder

Lens Magnification Ratio
0.7x 0.95x
BEST
Viewfinder
 electrical
 electrical
BEST

Ports & Interfaces

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

Camera

White Balance Mode
 Auto
 Manual
 Fluorescent
 Cloudy
 Incandescent
 Shade
 Flash
 Fluorescent H
 Fine
 Fluorescent L
 Tungsten
 Daylight
 Custom modes
 Auto
 Manual
 Fluorescent
 Cloudy
 Incandescent
 Shade
 Flash
 Fluorescent H
 Fine
 Fluorescent L
 Tungsten
 Daylight
 Custom modes
Shooting Mode
 Shutter priority
 Aperture priority
 Manual
 Sensitivity priority
 Shutter priority
 Aperture priority
 Manual
 Sensitivity priority
Photo Effect
 Black&White
 Neutral
 Vivid
 Pastel
 Black&White
 Neutral
 Vivid
 Pastel
Self-Timer
2,5,10,20 2,12
Histogram
Unknown - Click to provide data
 Histogram
Dioptre Correction
Unknown - Click to provide data
 Dioptre correction
Anti-Dust Function
Unknown - Click to provide data
 Anti-dust function
Image Editing Mode
 Resizing
 Rotating
 Crop
 Resizing
 Rotating
 Crop
Camera File System
 DCF 2.0
 Exif 2.3
 DCF
 DPOF
 Exif
 RAW
 DCF 2.0
 Exif 2.3
 DCF
 DPOF
 Exif
 RAW
Tripod Mount
 Tripod mount
Unknown - Click to provide data
Playback Mode
 Movie
 Single image
 Slide show
 Movie
 Single image
 Slide show
Saturation Adjustment
Unknown - Click to provide data
 Saturation adjustment
Contrast Adjustment
Unknown - Click to provide data
 Contrast adjustment
Brightness Adjustment
Unknown - Click to provide data
 Brightness adjustment
Diopter Adjustment
-3 - 1 -2.5 - 1.5
Eye Relief
Unknown - Click to provide data 20.5mm
Scene Mode
 Landscape
 Portrait
 Landscape
 Portrait
Display Language
 DAN
 DUT
 GRE
 CZE
 RUS
 ENG
 FIN
 FRE
 DEU
 ITA
 POL
 POR
 ESP
 SWE
 TUR
 HUN
 DAN
 DUT
 GRE
 CZE
 RUS
 ENG
 FIN
 FRE
 DEU
 ITA
 POL
 POR
 ESP
 SWE
 TUR
 HUN

Weight & Dimensions

Weight
880g 715g
BEST
Height
81.5mm
BEST
100mm
Depth
123mm 77.5mm
BEST
Width
146mm 131.5mm
BEST
Weight Including Battery
980g 800g
BEST

Battery

Power Source
 Battery
 Battery
Battery
 Lithium-Ion (Li-Ion)
 Lithium-Ion (Li-Ion)
Supported Battery
1 2
BEST
Battery Size
EN-EL15 D-LI90
Maximum Battery Life
Unknown - Click to provide data 6h
Shot Per Battery Charge
Unknown - Click to provide data 720 shots

Operational Conditions

Relative Humidity Operating Range
Unknown - Click to provide data 5 - 92
Operating Temperature Range
0 - 40 -10 - 40

Packaging Content

Bundled Software
Unknown - Click to provide data S-SW140
AC Adapter Included
 AC adapter included
 AC adapter included
Battery Included
Unknown - Click to provide data
 Battery included
Included Battery Charger
Unknown - Click to provide data
 Included battery charger
Quick Start Guide
Unknown - Click to provide data
 Quick start guide
Carrying Case
Unknown - Click to provide data
 Carrying case

Networking

WiFi Connectivity
Unknown - Click to provide data
 WiFi connectivity
Bluetooth
Unknown - Click to provide data
 Bluetooth

Other Features

Built-In Flash
 Built-in flash
 Built-in flash
USB 3.0 Port
Unknown - Click to provide data
 USB 3.0 port

Technical Details

Self-Timer
Unknown - Click to provide data
 Self-timer
Flash Type
Unknown - Click to provide data P-TTL
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