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Canon EOS 7D vs Pentax K-3 Comparison

Storage & Battery

Canon EOS 7D

Canon EOS 7D camera

Pentax K-3

Pentax K-3 camera
Canon EOS 7D
Pentax K-3
Refers to the year this camera was officially made available for sale.
Announcement Date
Refers to the date the manufacturer publicly announced the upcoming release and general specs of this camera.
September 01, 2009
October 08, 2013
Camera Type
Camera Size
Camera Weight

The Pentax K-3 outperforms the Canon EOS 7D with a score of 69/100 versus 45/100. Both cameras are DSLRs, announced in 2009 and 2013 respectively. They share similarities in size and weight, with the K-3 being slightly smaller at 131 x 100 x 77mm and lighter at 800g, compared to the 7D’s 148 x 111 x 74mm and 860g.

The Pentax K-3 excels with its lower launch price of $1300, while the Canon EOS 7D debuted at a higher $1974. Despite the lower price, the K-3’s higher score demonstrates its superior performance. The Canon EOS 7D, however, has no significant advantages over the Pentax K-3.

Considering the price and performance, the Pentax K-3 is the better choice for consumers seeking a high-quality DSLR camera.

Canon EOS 7D vs Pentax K-3 Overview and Optics

The Pentax K-3 outperforms the Canon EOS 7D in terms of optics, with a score of 74/100 as opposed to the Canon’s 43/100. Both cameras share common specifications such as an APS-C sensor size, CMOS sensor type, and a similar shooting speed (8.3 fps for Pentax K-3 and 8 fps for Canon EOS 7D). However, the Pentax K-3 has certain advantages that contribute to its superior score.

The Pentax K-3 has a higher megapixel count at 24 compared to the Canon EOS 7D’s 18 megapixels. This means that the Pentax K-3 can capture more detailed images. Additionally, the Pentax K-3 has a higher DXOMARK score for its sensor, standing at 80 compared to the Canon EOS 7D’s 66. This signifies better image quality and low-light performance. Moreover, the Pentax K-3 has image stabilization, which the Canon EOS 7D lacks. This feature helps in reducing camera shake and results in sharper images.

On the other hand, the Canon EOS 7D has a dual Digic 4 processor, while the Pentax K-3 has a single Prime III processor. However, this difference does not seem to give the Canon EOS 7D a significant advantage in terms of image processing.

In terms of optics, the Pentax K-3 is the clear winner due to its higher megapixel count, better sensor performance, and image stabilization feature. The Canon EOS 7D falls short in these aspects, making it a less favorable option for those prioritizing image quality and stability.

The higher the number of megapixels, the more detail the cameras sensor can capture.
18 MP
24 MP
Image Resolution
Image resolution is measured in pixels and megapixels, width by height. The higher the number, the higher its resolution.
5184 x 3456 px
6016 x 4000 px
Sensor Type
The camera sensor captures light and records the image. Sensors vary in physical size, the number of pixels, and quality.
Sensor Size
The sensor size contributes to the overall quality as well as the dynamic and tonal range a camera can capture. As a rule of thumb, the more surface there is to read the light, the more information it will capture.
14.9 x 22.3 mm
15.6 x 23.5 mm
Sensor Format
Refers to the most commonly used sensor sizes.
Frame Rate
The number of sequential frames per second the camera can write to the memory card when shooting in burst or continuous mode.
8 fps
8.3 fps
Lens Mount
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Canon EF-S
Pentax KAF
Image Processor
The image processor in the camera converts the information collected on the sensor for digital storage on the memory card.
Dual Digic 4
Prime III
Aspect Ratio
The aspect ratio refers to the proportional difference between width and height. The most popular aspect ratios are 3:2 and 4:3.
Minimum ISO (Native)
Refers to the lowest native (or 'base') ISO setting. Lower ISO are less sensitive to light but make a cleaner image.
Maximum ISO (Native)
Refers to the highest native (or 'base') ISO setting. Higher ISO is necessary for low-light situations or night photography, but higher ISOs often introduce grain or noise.
Minimum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Maximum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Minimum Shutter Speed
The minimum shutter speed will tell you the longest exposure your camera can take without using an external accessory.
30 s
30 s
Maximum Shutter Speed
The maximum shutter speed tells you the length inside 1 second the camera will capture. These can sometimes be extended with accessories such as extra external batteries.
1/ 8000 s
1/ 8000 s
Autofocus Points
Autofocus points show where the camera is focusing graphically as squares or brackets in Live View or on an electronic viewfinder. These points are also used for light meter readings.
In-body Stabilization
In-body Stabilization means the camera has a certain technology embedded that counteracts camera shake.
Viewfinder Type
The viewfinder type is either electronic or optical. Electronic viewfinders will have a small screen in the viewfinder. Optical viewfinders will use prisms and mirrors to look through the lens.
Optical (pentaprism)
Optical (pentaprism)

Canon EOS 7D vs Pentax K-3 Video Performance

The Pentax K-3 outperforms the Canon EOS 7D in video capabilities, scoring 70 out of 100 points, while the Canon EOS 7D scores 43 points. Both cameras share some common specifications, such as Full HD video resolution and maximum video dimensions of 1920 x 1080. However, there are notable differences that make the Pentax K-3 a superior choice in terms of video performance.

The Pentax K-3 has a higher maximum video frame rate of 60fps, compared to the Canon EOS 7D’s 30fps. This allows for smoother video playback and is particularly beneficial for recording fast-paced scenes or capturing slow-motion footage. Additionally, the Pentax K-3 features built-in time-lapse functionality, enabling users to create stunning time-lapse videos without the need for additional equipment or software.

While the Canon EOS 7D falls short in comparison to the Pentax K-3, it still offers decent video performance for casual users. Its Full HD video resolution and 1920 x 1080 video dimensions ensure that users can capture high-quality footage, albeit at a lower frame rate than the Pentax K-3.

Taking these factors into consideration, the Pentax K-3 is the clear winner in terms of video capabilities. Its higher frame rate and built-in time-lapse functionality provide users with greater creative flexibility and enhanced video performance. Meanwhile, the Canon EOS 7D remains a suitable option for those who prioritize other aspects of camera performance and do not require advanced video features.

Indicates if this camera is capable of recording video.
Max Video Resolution
The best resolution this camera can capture video in. Modern cameras can capture up to 8K video.
Full HD
Full HD
Max Video Dimensions
Video resolution measured by the greatest number of pixels possible in each frame, width by height. A higher resolution means more detail or clarity in your video.
1921 x 1080 px
1920 x 1080 px
Max Video Frame Rate
How many frames per second your video will capture. Most cameras have options for multiple frame rates, depending on the resolution you shoot in. For a general video, 24p or 30p is the standard, but more serious filmmakers may need a higher frame rate for creative effect.
30 p
60 p
Time-Lapse Built In
A built in time-lapse mode will allow continuous shooting throughout a prolonged period of time to be compressed into a sped up video.
Video File Format
Different cameras can record in various video file formats. The File format you record in can impact how you edit and use the files.

Canon EOS 7D vs Pentax K-3 Features and Benefits

The Pentax K-3 comes out on top with a feature score of 59/100, while the Canon EOS 7D trails slightly behind at 54/100. Despite the difference in scores, these cameras have several similarities in their features. Both cameras have 3-inch screens, lack touchscreens, flip screens, GPS, WIFI, and Bluetooth capabilities.

The Pentax K-3 holds an advantage in screen resolution, boasting a 1,037,000-dot resolution compared to the Canon EOS 7D’s 920,000 dots. This higher resolution results in a sharper and clearer image display on the K-3’s screen, allowing for better image review and composition. Additionally, the K-3’s screen is slightly larger at 3.2 inches, providing a more comfortable and immersive viewing experience.

On the other hand, the Canon EOS 7D does not have any distinct advantages over the Pentax K-3 in terms of features. Both cameras share the same limitations, such as the absence of touchscreen, flip screen, GPS, WIFI, and Bluetooth capabilities. However, the EOS 7D is still a solid camera with a respectable feature score of 54/100, making it a viable option for photographers who may prefer the Canon brand or have existing Canon lenses.

Taking these points into consideration, the Pentax K-3 surpasses the Canon EOS 7D in terms of features, mainly due to its higher screen resolution and slightly larger screen size. While the Canon EOS 7D does not offer any unique advantages in this comparison, it remains a reliable choice for photographers who prioritize brand loyalty or compatibility with existing gear. Ultimately, the decision between these two cameras will depend on individual preferences and requirements.

Built-in Flash
A built-in flash will often be positioned right above the lens. This will automatically pop up when you activate it.
External Flash
External flashes are often connected through a hot shoe at the top of a camera, or a cable at the side of the camera.
GPS features in a camera will include location metadata to each of your photographs.
Weather Sealing
Weather sealing capabilities will give you more confidence when shooting in unfavourable conditions.
Screen Type
Touch Screen
Touchscreen allows you to change camera settings and access menus with a swipe of your finger, instead of using buttons.
Screen Size
Screen Resolution
Screen dots indicate the resolution of the LCD screen by including each sub pixel.
920,000 dots
1,037,000 dots
Flip Screen
A flip screen (or articulating screen) is a second screen which can flip out from the side or top of the camera. This rotating screen allows you more freedom to take photos at different angles.
Live View
Live View feature allows you to see a continuous live video of what is being seen through your lens.
Bluetooth capabilities allow you wireless control of your camera with other external devices.

Canon EOS 7D vs Pentax K-3 Storage and Battery

The Pentax K-3 surpasses the Canon EOS 7D in storage and battery, scoring 63/100 compared to the 7D’s 35/100. Both cameras have common specifications, such as not having USB charging. However, the K-3 excels with two memory card slots and compatibility with SD, SDHC, and SDXC cards. The 7D only has one memory card slot, accepting Compact Flash (Type I or II), UDMA, and Microdrive cards.

Although the Canon EOS 7D falls short in storage, it outperforms the Pentax K-3 in battery life with 800 shots per charge, while the K-3 only offers 560 shots. The 7D uses an LP-E6 battery type, whereas the K-3 uses a D-LI90 battery type.

Considering these aspects, the Pentax K-3 is superior in terms of storage options, while the Canon EOS 7D offers better battery life. Users must decide which factor holds more importance for their specific needs.

Storage and Battery
Storage and Battery
Memory Card
Compact Flash (Type I or II), UDMA, Microdrive
Dual Memory Card Slots
Battery Type
Battery Life
Approximately how long this cameras battery will last measured by how many photographs you will be able to take.
800 shots
560 shots
USB Charging
Sensor scores tested by DXOMARK
Overall Score
DXOMARK overall sensor score.
Portrait (Color Depth)
As described by DXOMARK 'The Portrait score in our camera sensor reviews defines color depth performance and its unit is a number of bits. A color depth of 22 bits is excellent; differences below 1 bit are barely noticeable.'
22 bits
23.7 bits
Landscape (Dynamic Range)
As described by DXOMARK 'The Landscape score in our camera sensor tests defines the maximum dynamic range of the camera sensor and its unit is an exposure value (EV). A value of 12 EV is excellent with differences below 0.5 EV usually not noticeable.'
11.7 EVs
13.4 EVs
Sports (Low-Light ISO)
Described by DXOMARK as 'The maximal value of ISO sensitivity needed to reach a given value of Signal-to-Noise Ratio (SNR). The greater the value, the better'

Canon EOS 7D vs Pentax K-3 – Our Verdict

Canon EOS 7D vs Pentax K-3 Comparison image.

Are you still undecided about which camera is right for you? Have a look at these popular comparisons that feature the Canon EOS 7D or the Pentax K-3:

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