Canon 5D Mark III vs Canon 6D Mark II: A Detailed Comparison

In-depth analysis of specifications, performance, and usability

Highlights

Sensor and Image Quality: Compare resolution, ISO performance, and processor differences.
Autofocus and Performance: Detailed look at autofocus systems, continuous shooting, and video capabilities.
Build and Functionality: Differences in physical build, connectivity options, and additional features.

1. Overview and Product Positioning

The Canon 5D Mark III and Canon 6D Mark II are two full-frame DSLR cameras in Canon’s lineup, each designed with strengths tailored to different photography styles and professional needs. The 5D Mark III, introduced in 2012, is well-regarded among professionals for its robust construction and reliable performance under challenging conditions. In contrast, the 6D Mark II, introduced in 2017, emphasizes modern conveniences with a more advanced sensor, enhanced video capabilities, and a user-friendly interface geared towards enthusiasts and entry-level professionals.

2. Sensor, Resolution, and Image Quality

Sensor Specifications

One of the most foundational differences between these two cameras is the image sensor. The Canon 5D Mark III features a full-frame 22.3MP CMOS sensor that has delivered consistent performance and excellent image quality for many years. The Canon 6D Mark II, on the other hand, boosts the resolution to approximately 26.2MP on a full-frame CMOS sensor. This increase in resolution allows for more detailed images, which can be particularly advantageous for landscapes or high-detail shooting scenarios.

Image Processor and ISO Performance

The 5D Mark III utilizes Canon's DIGIC 5+ processor, which has been proven effective over time. Its native ISO range is 100-25600, expandable to ISO 50-102400. While the ISO performance of the 5D Mark III is robust, ensuring low noise at higher sensitivities, the 6D Mark II uses the more recent DIGIC 7 processor. This newer processor not only enhances overall camera speed but also improves low-light performance. The 6D Mark II’s native ISO range starts at 100 and goes up to 40000 (also expandable to ISO 50-102400), further solidifying its ability to capture clear images even under challenging light conditions.

3. Autofocus and Continuous Shooting

Autofocus System

Autofocus performance is a critical consideration for both still photography and video recording. The Canon 5D Mark III is equipped with a 61-point autofocus system, including 41 cross-type sensors. This extensive AF network is highly beneficial for tracking moving subjects, making the 5D Mark III a favored tool in sports, wedding, and event photography where precision is paramount.

In comparison, the Canon 6D Mark II uses a 45-point all cross-type autofocus system. Although the number of autofocus points is fewer than in the 5D Mark III, the 6D Mark II compensates with modern Dual Pixel AF technology. This technology is particularly advantageous for video shooting and live view scenarios, where smooth and rapid focusing is desired. While some users might notice a slight lag in performance compared to the 5D Mark III's advanced AF system, the overall experience with the 6D Mark II is highly commendable.

Continuous Shooting Speed

When it comes to capturing rapid sequences, both cameras offer impressive burst shooting modes. The Canon 5D Mark III supports continuous shooting at 6 frames per second (fps), while the 6D Mark II slightly edges out with a capability of 6.5 fps. This slight improvement in the 6D Mark II could be beneficial in capturing split-second moments in dynamic situations.

4. Physical Build, Ergonomics, and Design

Build Quality and Durability

The Canon 5D Mark III is renowned for its robust construction. It is built using a full magnesium alloy body, providing significant durability. This level of robustness is crucial for professional photographers who work in demanding environments. With comprehensive weather sealing, the 5D Mark III can withstand harsh outdoor conditions, making it a reliable workhorse for event and action photography.

In contrast, while the Canon 6D Mark II is also designed with a full-frame body destined for quality performance, it boasts a slightly lighter design at approximately 765 grams (body only) compared to the heftier 5D Mark III, which weighs around 950 grams. The smaller dimensions and lighter weight of the 6D Mark II make it particularly appealing for travel and everyday use, where portability and ease of handling are essential attributes.

Ergonomics and User Interface

User interface and control layout are decisive factors when choosing a DSLR. The 5D Mark III features an extensive array of physical buttons and dials that cater to the needs of professionals, allowing for precise manual adjustments in the field. It further includes dual memory card slots—one accepting CompactFlash and the other SD cards—providing backup and extended shooting capacity during long sessions.

The 6D Mark II offers a slightly different approach. It comes with a fully articulating 3-inch touchscreen LCD that brings innovative control through touch feedback. This screen is particularly useful not only for still compositions but also for video recordings, providing ease of use for quick adjustments. Although it covers only a single memory card slot (SD only), the modern connectivity features such as built-in GPS, Wi-Fi, and even NFC expand its utility for immediate image sharing and remote control operations.

5. Video Capabilities

Resolution and Frame Rates

In the era of multimedia photography, video capabilities are equally significant. The Canon 5D Mark III delivers Full HD (1080p) video recording at 30 frames per second. This frame rate is adequate for standard video tasks and offers comprehensive manual control over settings, which is ideal for videographers looking for a traditional filmmaking tool.

On the other hand, the Canon 6D Mark II is built with modern video performance in mind. It is capable of recording 1080p video at up to 60 frames per second, a feature that is particularly useful for capturing smoother footage and for applications that benefit from a higher frame rate. The incorporation of Dual Pixel CMOS AF technology enhances this capability, providing superior autofocus performance during video recording, thus translating to footage that is consistently sharp even when the subject is moving.

6. Connectivity and Additional Features

Wireless Connectivity and GPS

Modern photography increasingly depends on immediate connectivity and location tagging. The Canon 6D Mark II leads in this domain by offering built-in Wi-Fi, GPS, and NFC functionalities. These features enable seamless remote control of the camera, quick transfer of images, and automatic geotagging, which can be immensely beneficial for travel photography and social media sharing.

In comparison, the Canon 5D Mark III is more traditional in its approach, coming with a built-in flash but lacking the advanced connectivity options. This reflects its professional-grade design philosophy, where the priority lies primarily on capturing the best still image with a trusted manual workflow rather than on immediate digital communication and sharing.

Battery Life and Operational Efficiency

Battery performance is another essential factor in extensive shooting sessions. The Canon 6D Mark II typically offers slightly superior battery life with approximately 1200 shots per charge, an advantage for photographers who need uninterrupted usage over long periods. The 5D Mark III, although very reliable in battery performance with around 950 shots per charge, might require more frequent battery changes during prolonged shoots. This aspect can be a deciding factor for those engaged in event photography or long outdoor sessions.

7. Side-by-side Feature Comparison

The table below summarizes the key technical differences between the Canon 5D Mark III and Canon 6D Mark II, providing a quick reference for photographers evaluating both models:

Feature	Canon 5D Mark III	Canon 6D Mark II
Sensor Resolution	22.3 MP	26.2 MP
Image Processor	DIGIC 5+	DIGIC 7
ISO Range (Native)	100-25600 (expandable: 50-102400)	100-40000 (expandable: 50-102400)
Autofocus Points	61 points (41 cross-type)	45 points (all cross-type with Dual Pixel AF)
Continuous Shooting	6 fps	6.5 fps
Screen	3.2" fixed LCD	3" vari-angle touchscreen
Video Capability	1080p @ 30 fps	1080p @ 60 fps
Body Build	Robust, magnesium alloy body, dual memory slots	Lighter, single SD slot, integrated Wi-Fi/GPS/NFC
Weight (Body only)	Approximately 950 g	Approximately 765 g
Battery Life	Approximately 950 shots/charge	Approximately 1200 shots/charge

8. Practical Applications and Use Cases

Canon 5D Mark III: A Professional Workhorse

The Canon 5D Mark III is often the camera of choice for professionals in fields where rugged performance is essential. Its exceptional autofocus system tailored toward dynamic subjects makes it highly effective in sports, wedding, and event photography. The dual memory card slots provide an added layer of security, making the camera a reliable backup option during high-pressure assignments. The robust build with excellent weather sealing means the 5D Mark III can thrive in demanding outdoor environments where dust, moisture, and temperature fluctuations are common.

Canon 6D Mark II: Versatile and Modern

The Canon 6D Mark II, while offering many features found in professional-grade cameras, is engineered with versatility and modern connectivity in mind. Its improved resolution and the DIGIC 7 processor make it an excellent choice for digital enthusiasts who value detailed images. The articulating touchscreen simplifies composing shots from unconventional angles, and its video enhancements, including 1080p at 60 fps and Dual Pixel AF, have significantly improved its attractiveness for videography. Additionally, built-in Wi-Fi, GPS, and NFC empower photographers with immediate connectivity and sharing capabilities, making the 6D Mark II a great companion for travel and everyday photography.

9. User Experience and Customization

Customization and Controls

Both the Canon 5D Mark III and the Canon 6D Mark II offer extensive customization options to suit the particular needs of their users. The 5D Mark III’s comprehensive array of physical controls is designed for swift, tactile adjustments, which is a priority for professional users who demand precision and immediacy in operation. Conversely, the 6D Mark II integrates a modern interface, including a fully articulating touchscreen, making it more intuitive in live view and video modes. The setup menus and customizable buttons on the 6D Mark II help streamline functions for quick shooting and social media integration.

Ergonomics and Handling

Ergonomics play an important role in long shooting sessions. The 5D Mark III, being slightly bulkier, offers a commanding grip that feels stable even in the most active shooting scenarios. Professionals who require steadfast performance and durability often gravitate toward it because it feels more robust in hand. Meanwhile, the lighter and more compact design of the 6D Mark II not only enhances portability but also reduces fatigue over long periods of shooting. This feature along with modern connectivity makes the 6D Mark II appealing for photographers who are frequently on the move or who prioritize convenience without compromising image quality.

10. Price and Market Position

Price and market positioning are also determining factors when choosing between these two cameras. The Canon 5D Mark III has established a reputation as a professional-grade machine with enduring market value, especially among professionals who do not mind investing in a camera system with proven reliability over a longer period. The Canon 6D Mark II, while offering a refresh of technology and features, is positioned as a versatile camera that appeals to both serious enthusiasts and entry-level professionals. Depending on current market conditions and availability, the 6D Mark II might represent a cost-effective alternative for those seeking modern functionality without the premium typically associated with the higher-spec 5D series.

Conclusion and Final Thoughts

In summary, the comparison between the Canon 5D Mark III and the Canon 6D Mark II reveals two cameras built to cater to distinct photography requirements. For photographers who demand robustness, advanced autofocus tracking, and a build that endures high-pressure professional use, the Canon 5D Mark III remains unbeatable. Its deep heritage in professional photography, complemented by its extensive manual controls and reliable durability, ensures it is still considered a workhorse in the field. The slight limitations in resolution and connectivity are often offset by its performance for capturing fast-moving subjects and challenging scenarios.

Conversely, the Canon 6D Mark II introduces modern enhancements that broaden its appeal, particularly for those who value interface convenience, improved video capabilities, and connectivity features. With a higher resolution sensor, modern DIGIC 7 processor, and a user-friendly touchscreen, the 6D Mark II offers seamless integration into a digital lifestyle by simplifying content sharing and overall usability in a range of photography and videography applications.

Ultimately, the choice between these two cameras is governed by personal preference and specific requirements. If your work is characterized by high-intensity, professional-level photography where every shot counts, the robust build and advanced autofocus system of the Canon 5D Mark III make it an excellent choice. However, if you lean toward a more versatile system with modern features that support both stills and video, and you appreciate the convenience of integrated technology, then the Canon 6D Mark II is likely the best fit for you.