Nikon D810A vs Pentax K-3 II
55 Imaging
75 Features
80 Overall
77
![Nikon D810A front Nikon D810A front](https://pxlmag.com/db/images/cameras/w300/fronton/Nikon-D810A.jpg)
![Pentax K-3 II front Pentax K-3 II front](https://pxlmag.com/db/images/cameras/gallery/medium/Pentax-K-3-II/Pentax-K-3-II-front.jpg)
59 Imaging
66 Features
84 Overall
73
Nikon D810A vs Pentax K-3 II Key Specs
(Full Review)
- 36MP - Full frame Sensor
- 3.2" Fixed Screen
- ISO 200 - 12800 (Raise to 51200)
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Nikon F Mount
- 880g - 146 x 123 x 82mm
- Revealed February 2015
(Full Review)
- 24MP - APS-C Sensor
- 3.2" Fixed Screen
- ISO 100 - 51200
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 800g - 131 x 100 x 77mm
- Released April 2015
- Older Model is Pentax K-3
![](https://pxlmag.com/wp-content/uploads/2024/04/samsung-evo-microsd-cards-featur-218x150.jpg)
Nikon D810A vs Pentax K-3 II Overview
Here is a extensive review of the Nikon D810A and Pentax K-3 II, both Advanced DSLR digital cameras by rivals Nikon and Pentax. There exists a substantial gap between the image resolutions of the D810A (36MP) and K-3 II (24MP) and the D810A (Full frame) and K-3 II (APS-C) use different sensor measurements.
![](https://pxlmag.com/wp-content/uploads/2024/04/iphone-optical-stabilization-218x150.jpg)
The D810A was introduced 2 months prior to the K-3 II which means that they are both of a similar age. Each of these cameras come with the identical body type (Mid-size SLR).
Before we go through a detailed comparison, below is a brief overview of how the D810A matches up against the K-3 II with regards to portability, imaging, features and an overall rating.
![](https://pxlmag.com/wp-content/uploads/2024/06/No-Surprise-Pentax-17-Pre-Orders-218x150.jpg)
Nikon D810A vs Pentax K-3 II Gallery
This is a preview of the gallery images for Nikon D810A & Pentax K-3 II. The whole galleries are viewable at Nikon D810A Gallery & Pentax K-3 II Gallery.
Reasons to pick Nikon D810A over the Pentax K-3 II
D810A | K-3 II | |||
---|---|---|---|---|
Screen resolution | 1229k | ![]() | 1037k | Clearer screen (+192k dot) |
Reasons to pick Pentax K-3 II over the Nikon D810A
K-3 II | D810A |
---|
Common features in the Nikon D810A and Pentax K-3 II
D810A | K-3 II | |||
---|---|---|---|---|
Released | February 2015 | ![]() | April 2015 | Similar age |
Focus manually | ![]() | Dial precise focus | ||
Screen type | Fixed | ![]() | Fixed | Fixed screen |
Screen dimension | 3.2" | ![]() | 3.2" | Identical screen measurements |
Selfie screen | ![]() | No selfie screen | ||
Touch screen | ![]() | No Touch screen |
Nikon D810A vs Pentax K-3 II Physical Comparison
When you are aiming to carry your camera, you'll need to consider its weight and dimensions. The Nikon D810A features outside dimensions of 146mm x 123mm x 82mm (5.7" x 4.8" x 3.2") with a weight of 880 grams (1.94 lbs) and the Pentax K-3 II has dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") with a weight of 800 grams (1.76 lbs).
Take a look at the Nikon D810A and Pentax K-3 II in our brand new Camera & Lens Size Comparison Tool.![Camera Size Comparison with Lenses Camera Size Comparison with Lenses](https://pxlmag.com/db/assets/camera-size-comparison-animation.gif)
Don't forget, the weight of an ILC will vary depending on the lens you select during that time. Following is the front view measurements comparison of the D810A vs the K-3 II.
![Nikon D810A vs Pentax K-3 II size comparison Nikon D810A vs Pentax K-3 II size comparison](https://pxlmag.com/db/images/camera-compare/Nikon-D810A-vs-Pentax-K-3-II-size-comparison.jpg)
Using dimensions and weight, the portability score of the D810A and K-3 II is 55 and 59 respectively.
![Nikon D810A vs Pentax K-3 II top view buttons comparison Nikon D810A vs Pentax K-3 II top view buttons comparison](https://pxlmag.com/db/images/camera-compare/Nikon-D810A-vs-Pentax-K-3-II-top-view-buttons-comparison.jpg)
Nikon D810A vs Pentax K-3 II Sensor Comparison
Sometimes, it is hard to visualize the difference between sensor sizing purely by reading technical specs. The visual underneath will help offer you a better sense of the sensor dimensions in the D810A and K-3 II.
As you can tell, the two cameras posses different resolutions and different sensor sizing. The D810A with its bigger sensor is going to make shooting shallow depth of field less difficult and the Nikon D810A will offer greater detail using its extra 12MP. Higher resolution will also let you crop pictures somewhat more aggressively.
![Nikon D810A vs Pentax K-3 II sensor size comparison Nikon D810A vs Pentax K-3 II sensor size comparison](https://pxlmag.com/db/images/sensor-compare/Nikon-D810A-vs-Pentax-K-3-II-sensor-size-comparison.png)
Nikon D810A vs Pentax K-3 II Screen and ViewFinder
![Nikon D810A vs Pentax K-3 II Screen and Viewfinder comparison Nikon D810A vs Pentax K-3 II Screen and Viewfinder comparison](https://pxlmag.com/db/images/camera-compare/Nikon-D810A-vs-Pentax-K-3-II-screen-back-comparison.jpg)
![](https://pxlmag.com/wp-content/uploads/2024/04/snapchat-218x150.jpg)
Photography Type Scores
Portrait Comparison
![](https://pxlmag.com/wp-content/uploads/2024/04/tiktok-218x150.jpg)
Street Comparison
![](https://pxlmag.com/wp-content/uploads/2024/04/Approach-to-AI-Generated-Content-218x150.jpg)
Sports Comparison
![](https://pxlmag.com/wp-content/uploads/2024/04/LP3_cut_13f_0212-218x150.jpg)
Travel Comparison
![](https://pxlmag.com/wp-content/uploads/2024/04/photography-glossary-218x150.jpg)
Landscape Comparison
![](https://pxlmag.com/wp-content/uploads/2024/04/ai-licence-218x150.jpg)
Vlogging Comparison
![](https://pxlmag.com/wp-content/uploads/2024/04/maxresdefault-218x150.jpg)
Nikon D810A vs Pentax K-3 II Specifications
Nikon D810A | Pentax K-3 II | |
---|---|---|
General Information | ||
Make | Nikon | Pentax |
Model | Nikon D810A | Pentax K-3 II |
Class | Advanced DSLR | Advanced DSLR |
Revealed | 2015-02-10 | 2015-04-23 |
Physical type | Mid-size SLR | Mid-size SLR |
Sensor Information | ||
Processor | EXPEED 4 | Prime III |
Sensor type | CMOS | CMOS |
Sensor size | Full frame | APS-C |
Sensor dimensions | 35.9 x 24mm | 23.5 x 15.6mm |
Sensor surface area | 861.6mm² | 366.6mm² |
Sensor resolution | 36MP | 24MP |
Anti aliasing filter | ||
Aspect ratio | 5:4 and 3:2 | 3:2 |
Peak resolution | 7360 x 4912 | 6016 x 4000 |
Highest native ISO | 12800 | 51200 |
Highest enhanced ISO | 51200 | - |
Minimum native ISO | 200 | 100 |
RAW pictures | ||
Minimum enhanced ISO | 100 | - |
Autofocusing | ||
Focus manually | ||
Autofocus touch | ||
Autofocus continuous | ||
Single autofocus | ||
Autofocus tracking | ||
Selective autofocus | ||
Center weighted autofocus | ||
Multi area autofocus | ||
Autofocus live view | ||
Face detection focus | ||
Contract detection focus | ||
Phase detection focus | ||
Number of focus points | 51 | 27 |
Cross focus points | 15 | 25 |
Lens | ||
Lens mount | Nikon F | Pentax KAF2 |
Available lenses | 309 | 151 |
Crop factor | 1 | 1.5 |
Screen | ||
Type of screen | Fixed Type | Fixed Type |
Screen diagonal | 3.2 inches | 3.2 inches |
Screen resolution | 1,229k dots | 1,037k dots |
Selfie friendly | ||
Liveview | ||
Touch friendly | ||
Viewfinder Information | ||
Viewfinder type | Optical (pentaprism) | Optical (pentaprism) |
Viewfinder coverage | 100 percent | 100 percent |
Viewfinder magnification | 0.7x | 0.64x |
Features | ||
Minimum shutter speed | 30 seconds | 30 seconds |
Fastest shutter speed | 1/8000 seconds | 1/8000 seconds |
Continuous shutter rate | 5.0 frames per second | 8.3 frames per second |
Shutter priority | ||
Aperture priority | ||
Expose Manually | ||
Exposure compensation | Yes | Yes |
Change white balance | ||
Image stabilization | ||
Built-in flash | ||
Flash range | 12.00 m (at ISO 100) | no built-in flash |
Flash settings | Front-curtain sync, slow sync, rear-curtain sync, redeye reduction, redeye reduction w/slow sync, slow rear-curtain sync | Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync (available with dedicated external flash) |
Hot shoe | ||
Auto exposure bracketing | ||
WB bracketing | ||
Fastest flash synchronize | - | 1/180 seconds |
Exposure | ||
Multisegment exposure | ||
Average exposure | ||
Spot exposure | ||
Partial exposure | ||
AF area exposure | ||
Center weighted exposure | ||
Video features | ||
Supported video resolutions | 1920 x 1080 (60p, 50p, 30p, 25p, 24p), 1280 x 720 (60p, 50p) | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) |
Highest video resolution | 1920x1080 | 1920x1080 |
Video format | MPEG-4, H.264 | MPEG-4, H.264 |
Mic port | ||
Headphone port | ||
Connectivity | ||
Wireless | Optional | Optional |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 3.0 (5 GBit/sec) | USB 3.0 (5 GBit/sec) |
GPS | Optional | BuiltIn |
Physical | ||
Environment sealing | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 880g (1.94 lbs) | 800g (1.76 lbs) |
Dimensions | 146 x 123 x 82mm (5.7" x 4.8" x 3.2") | 131 x 100 x 77mm (5.2" x 3.9" x 3.0") |
DXO scores | ||
DXO Overall score | not tested | 80 |
DXO Color Depth score | not tested | 23.6 |
DXO Dynamic range score | not tested | 13.6 |
DXO Low light score | not tested | 1106 |
Other | ||
Battery life | 1200 pictures | 720 pictures |
Form of battery | Battery Pack | Battery Pack |
Battery model | EN-EL15 | D-LI90 |
Self timer | Yes (2, 5, 10, 20 secs for up to 9 shots) | Yes ( 2 or 12 seconds) |
Time lapse feature | ||
Storage type | SD/SDHC/SDXC, CompactFlash (UDMA compliant) | Dual SD/SDHC/SDXC |
Card slots | Dual | Dual |
Price at release | $3,800 | $829 |