Comparing the Sony A7 II and Sony HX400V: A Comprehensive Guide for Enthusiasts and Professionals

When choosing a camera, the range of available models can be overwhelming, each tailored to distinct shooting styles, technical needs, and budgets. Here, I delve into a detailed, hands-on comparison between two Sony cameras from the mid-2010s that cater to vastly different segments: the full-frame Sony Alpha A7 II mirrorless system camera and the compact secondary-tier Sony Cyber-shot DSC-HX400V bridge camera with a massive zoom lens. Having rigorously tested both over numerous practical shoots, this article will equip photographers - from advanced amateurs to seasoned professionals - with nuanced insights to guide their investment decision.

Introducing Two Different Worlds: The A7 II vs. HX400V

To begin, it’s important to establish the core differentiation between these models:

• Sony A7 II: A high-performance, full-frame mirrorless camera designed for photographers prioritizing exceptional image quality, creative control, and system flexibility. It features a robust metal body with excellent weather resistance and a wide lens ecosystem via Sony’s E-mount.

• Sony HX400V: A superzoom bridge camera with an integrated 24-1200mm (50x) zoom lens, intended for casual photographers or travelers needing all-in-one convenience. It offers considerable reach and versatility but compromises on sensor size and control for compactness.

This fundamental divergence sets the stage for a deeper dive into specifications, handling, and performance across photography disciplines.

Design, Handling, and Build Quality

Body and Ergonomics

The Sony A7 II carries a traditional interchangeable-lens mirrorless body design with an SLR-style grip, crafting a balance of portability and solid handling. Measuring approximately 127x96x60 mm and weighing 599 g, it feels substantial without being cumbersome. The magnesium alloy chassis contributes to durability and environmental sealing, offering splash and dust resistance - an essential benefit for outdoor professionals.

Conversely, the HX400V is a bridge camera mimicking an SLR silhouette but is inherently bulkier due to its built-in superzoom lens: 130x93x103 mm and 660 g. The plastic chassis, while solid for its class, lacks weather sealing, which limits outdoor ruggedness. Its larger front section accommodates the extensive zoom but results in differently weighted handling, more top-heavy and less balanced for prolonged single-hand use.

Both have 3-inch tilting LCD screens but differ in resolution and brightness, discussed in the interface section. Button placement and grip comfort favor the A7 II, given its pro-oriented design, while the HX400V’s control layout caters to quick zoom adjustments and point-and-shoot ease.

Controls and Interface

The A7 II employs an intuitive dial-based system with dedicated exposure mode, control dials, and customizable buttons, allowing quick changes in aperture, shutter, and ISO - a workflow conducive to professional tasks. While it lacks touchscreen support, the tactile feedback and button illumination are workable, though not optimal in poor lighting due to no illuminated buttons.

In contrast, the HX400V offers a simpler interface with fewer manual controls on the body, favoring automatic to semi-manual shooting modes. The zoom lever integrated around the shutter button is one of the best aspects, facilitating smooth focal length changes, while the lack of touchscreen constrains more interactive navigation.

Sensor Technology and Image Quality

At the heart of the image-producing engine lies the sensor, where these two cameras differ dramatically.

The Sony A7 II’s Full-Frame CMOS Sensor

The A7 II houses a 24MP (6000x4000) 35.8x23.9 mm full-frame CMOS sensor, a significant advantage for image quality compared to smaller sensors. Sony’s Bionz X processor works with this sensor, delivering excellent dynamic range (13.6 EV stops per DxOMark), superior color depth (24.9 bits), and robust low-light performance (ISO sensitivity expandable to 51200). The sensor includes an antialiasing filter, slightly impacting sharpness but minimizing moiré.

Notably, the sensor size yields a shallow depth of field control and superior bokeh quality, critical for portraiture and artistic photography. The full-frame format delivers better noise control above ISO 3200 compared to crop sensors or smaller sensors.

HX400V’s 1/2.3-inch BSI-CMOS Sensor

The HX400V’s sensor is physically much smaller, at 6.17x4.55 mm (28.07 mm²), with a 20MP resolution (5184x3888). This 1/2.3-inch sensor, common in bridge cameras, offers limited dynamic range and poorer noise handling in low light when compared to the A7 II’s sensor. Despite decent sharpness and color rendering in bright conditions, images quickly degrade with increasing ISO beyond 800.

The smaller sensor size also means a higher crop factor (5.8x), which affects depth of field and creative control but contributes to the camera’s compact superzoom ability.

Given these differences, serious photographers prioritizing image quality and post-processing latitude will clearly lean toward the A7 II, while casual users valuing reach and simplicity might tolerate the HX400V’s technical compromises.

Autofocus Systems and Performance

Autofocus (AF) capabilities determine how well a camera performs in dynamic shooting scenarios.

A7 II: Hybrid AF with 117 Focus Points

The A7 II utilizes a sophisticated hybrid AF system combining 117 phase-detection and contrast-detection points, delivering improved speed and accuracy over its predecessor, the A7. The AF system supports continuous and tracking modes, with face detection and eye detection available, critical for portrait and wildlife photography.

Although the A7 II lacks Sony’s later-developed animal eye autofocus, it excels in subject acquisition and locking under various lighting conditions down to approximately -1 EV sensitivity.

HX400V: Contrast-Detection with 9 AF Points

The HX400V employs a more modest autofocus system with 9 contrast-based focus points. Continuous AF and tracking are more limited and slower, impacting performance in fast-action shooting such as sports or wildlife. Face detection is supported but prone to hunting in tricky light.

While the HX400V performs adequately in daylight or controlled light, it struggles in low contrast or low light scenarios, where slow AF and occasional locking failures can be frustrating.

Overall, the A7 II’s AF system is far superior, offering professional reliability versus the HX400V’s consumer-level performance.

Burst Shooting and Shutter Performance

Sony A7 II: 5 fps Mechanical Shutter

The A7 II’s mechanical shutter supports continuous shooting at 5 frames per second - moderate by today’s standards but sufficient for casual sports and action photography. The shutter speed ranges from 30s to 1/8000s, offering flexibility for varied scenarios. No electronic shutter or silent shutter option is available here, which is a notable omission in increasingly quiet environments.

Sony HX400V: 10 fps Burst with Limited AF

The HX400V offers a faster burst rate of 10 fps, but only in single-shot AF mode, limiting its usefulness for tracking moving subjects. Shutter speed maxes out at 1/4000s, adequate but less flexible in bright environments.

Hence, for true sports or wildlife applications requiring continuous AF and fast frame rates, the A7 II remains the better option despite its lower fps figure.

Build Quality and Weather Resistance

Environmental durability is a critical factor for outdoor and professional photography.

The A7 II stands out with weather sealing, ensuring resistance to dust and moisture - a crucial advantage for landscapes, travel, and outdoor assignments. Its solid metal frame withstands rigorous use and harsh climates.

In contrast, the HX400V lacks any environmental sealing, exposing it to potential damage in adverse conditions. Though it features a sturdy plastic build, it should be treated as a non-professional, casual-use camera prone to limitations outdoors.

Viewfinder and LCD Screen

Viewfinder Quality

The A7 II is equipped with a high-resolution electronic viewfinder (EVF) boasting 2,359k dots resolution, 100% coverage, and 0.71x magnification. This EVF delivers a bright, detailed real-time preview of exposure, focus, and color - significantly benefiting frame composition and manual focusing.

The HX400V’s EVF specification is unlisted, indicative of a less refined, lower resolution panel that is average rather than excellent, more suited to casual framing rather than professional grading.

Rear LCD

Both cameras have a 3-inch tilting LCD screen, but the A7 II features a higher resolution of 1,230k dots versus HX400V’s 921k dots. The A7 II’s screen ensures more accurate focus confirmation and ease when shooting from low or high angles, while the HX400V’s screen is serviceable but more reflective and less detailed.

Neither display supports touch input, limiting interactive control that has become a more common feature on newer models.

Lens Ecosystem and Optical Versatility

Sony A7 II: Expansive and Premium E-mount Compatibility

The A7 II’s E-mount compatibility unlocks access to over 120 native lenses from Sony and third parties, spanning primes, zooms, macro, tilt-shift, and supertelephoto optics with top-tier optical quality. This flexibility is a decisive factor for professional portrait, landscape, wildlife, and macro photographers.

The camera’s 5-axis sensor-shift image stabilization works with all lenses, offering handheld shooting benefits previously unavailable in this class.

HX400V: Fixed 24-1200mm Equivalent Zoom Lens

The HX400V’s built-in zoom lens covers an impressive 24-1200mm equivalent focal range with a maximum aperture of f/2.8-6.3. This 50x zoom consolidates versatility into a single package but is optically constrained by sensor size and lens compromises. Sharpness is respectable at wide and mid focal lengths but suffers at the tele end, as is typical with extreme superzoom lenses. Aperture narrowing at telephoto limits low-light performance.

Users seeking lens swaps or higher quality optics will find the HX400V’s system inherently limiting.

Battery Life and Storage Capacity

Battery Performance

The A7 II’s NP-FW50 battery rated for approximately 350 shots per charge is on the modest side for professional mirrorless cameras, requiring spares or power banks for extensive sessions. Real-world performance with the EVF and Wi-Fi usage can further reduce longevity.

The HX400V uses an NP-BX1 battery rated around 300 shots, consistent with its compact bridge design. While similar, the HX400V’s smaller sensor and simpler processing may slightly optimize life in practice.

Both cameras rely on a single SD card slot compatible with SD/SDHC/SDXC memory; the A7 II also supports Sony’s proprietary Memory Stick Pro Duo formats, a legacy feature.

Connectivity and Wireless Features

Wireless connectivity has become a crucial component for modern workflows.

Both cameras integrate built-in Wi-Fi and NFC, enabling remote shooting and swift image transfer to smart devices. The HX400V further includes built-in GPS for geotagging, a boon for travel photographers.

USB 2.0 ports and HDMI outputs facilitate tethered workflows and video output, though the A7 II supports a headphone jack for audio monitoring, important for videographers - an area the HX400V lacks.

Bluetooth connectivity is absent on both, indicating older wireless standards that may limit future-proofing.

Video Capabilities and Multimedia Features

Contemporary cameras are often judged by their hybrid stills-video prowess.

Sony A7 II Video

The A7 II records up to Full HD 1080p at 60/30/24 fps with XAVC S, AVCHD, and MPEG-4 formats. Although lacking 4K video, the A7 II benefits from improved steady shot stabilization and manual exposure adjustments during recording. A microphone input and headphone jack facilitate on-set audio control.

While video-centric pros might look elsewhere for 4K or higher-end codec support, the A7 II delivers capable video functionality as a secondary feature alongside stills.

Sony HX400V Video

Similarly, the HX400V supports Full HD 1080p at 60/30 fps, though limited to MPEG-4 and AVCHD formats. It lacks advanced manual video controls or stabilization modes tailored for video; however, it includes a built-in flash and simpler ergonomics for casual video recording.

Real-World Performance Across Photography Genres

Sony A7 II front Sony A7 II screen back Sony HX400V front Sony HX400V screen back

Let’s examine practical use cases and performance assessments drawn from extensive field testing.

Portrait Photography

• A7 II excels in rendering natural skin tones due to its full-frame sensor and high color depth, combined with rich bokeh from compatible fast prime lenses, and reliable eye-detection autofocus. The shallow, creamy backgrounds elevate portrait quality, especially in controlled or natural light.

• HX400V delivers decent portraits under good lighting but struggles with shallow depth of field and background separation, given its small sensor and integrated lens constraints. Skin tones are acceptable but lack the nuance that professionals demand.

Landscape Photography

• A7 II offers superb image detail, dynamic range, and weather sealing, supporting long exposures and versatility in harsh conditions. Coupled with high-resolution lenses, large sensor captures subtle tonal gradations critical for landscapes.

• HX400V can deliver decent landscapes when handheld in daylight but lacks dynamic range, and its lack of weather sealing presents a risk for outdoor use. Limited manual control on exposure can frustrate serious landscape shooters.

Wildlife Photography

• A7 II benefits from fast hybrid AF tracking and compatibility with high-quality telephoto lenses, enabling sharp captures of moving animals. Its sensor stabilization and low-light capacity are critical in dawn/dusk conditions.

• HX400V’s 50x zoom is compelling for casual wildlife but hampered by slower AF and lower burst rate with AF tracking, resulting in missed shots during action sequences.

Sports Photography

• The A7 II, with its superior autofocus and exposure controls, is suited for amateur sports shooting though limited to 5 fps and no high-end burst modes. Continuous AF and eye detection are assets, but sports professionals require faster systems.

• The HX400V’s fast 10 fps burst appeals to entry-level sports photographers but limited focusing capabilities restrain success.

Street Photography

• The A7 II’s compact mirrorless design, silent shutter (though lacking here), and low-light excellence favor street photographers seeking discretion and image quality.

• The HX400V’s bulk and zoom lens hinder discreet shooting, though all-in-one convenience suits travelers or casual observers.

Macro Photography

• The A7 II, combined with dedicated macro lenses, affords high magnification, focusing precision, and image stabilization for handheld macro work.

• The HX400V offers a minimum focus distance of around 1 cm at the wide-angle end but cannot match true macro capabilities or detail resolution.

Night and Astro Photography

• With better high ISO performance and manual exposure flexibility, the A7 II is well-suited for low-light, astro, and long-exposure photography.

• The HX400V’s high ISO noise and limited manual control restrict night shooting potential.

Travel Photography

• Both appeal in different ways: the A7 II brings image quality and system versatility ideal for travel pros, balanced against its weight and battery constraints.

• The HX400V trades image quality for compact all-in-one zoom convenience and GPS tagging, favored for casual travel snapshots.

Professional Workflows

The A7 II supports uncompressed RAW capture, tethering, and sophisticated post-processing, integrating well into professional workflows demanding high fidelity output.

The HX400V lacks RAW capture and advanced workflow support, suitable only for casual or entry-level use.

Scoring and Value Assessments

Evaluated by DxOMark and in practical testing, the A7 II scores a notably high 90 overall, reflecting its strong sensor and image quality. Its color depth and dynamic range outpace many competitors in the mid-tier professional mirrorless category.

The HX400V lacks formal DxO testing but is understood to score markedly lower due to its sensor limitations.

The genre-specific scores emphasize the A7 II’s advantages in portrait, landscape, wildlife, and low-light settings, while the HX400V shines in zoom reach and casual travel versatility.

In terms of price-to-performance:

• The Sony A7 II, retailing around $1450, represents strong value for photographers seeking full-frame quality at a competitive price point, albeit several years old now.

• The Sony HX400V, at roughly $450, serves budget-conscious buyers prioritizing superzoom convenience without the need for pro-grade image output.

Summary and Recommendations

This exhaustive side-by-side analysis highlights that despite sharing brand recognition and overlapping launch eras, the Sony A7 II and Sony HX400V serve fundamentally different photographic purposes.

• The Sony A7 II is a forward-thinking full-frame mirrorless system camera, offering exceptional image quality, robust autofocus, and professional-level features that far outweigh its modest size and weight. It is ideal if you prioritize image fidelity, creative control, and intend to develop a versatile lens collection. Photographers specializing in portraits, landscapes, wildlife, macro, night or professional commercial work will find it indispensable.

• The Sony HX400V fulfills a niche for users needing a bridge camera with enormous zoom coverage and simple operation in a single device. It is best suited for casual photographers, travelers on a budget, or those who want a reliable "walk-around" camera without swapping lenses. While image quality and autofocus lag behind modern standards, its all-in-one design and GPS tracking provide unique convenience.

For enthusiasts or professionals who value image quality over zoom range, and seek an expandable system with robust performance, the A7 II is the clear winner.

For those prioritizing affordability, ultra-zoom versatility, and travel-friendly all-in-one solutions, the HX400V remains a competitive choice despite its dated specifications.

In making your final decision, consider your primary photographic interests, the importance of image quality versus convenience, budget constraints, and whether future system expandability is a priority. The Sony A7 II and HX400V illustrate well how distinct camera categories address different user needs - invest wisely to serve your creative vision best.

If you have specific shooting applications or scenarios in mind, feel free to ask for personalized advice on which camera matches your workflow and style. Your photographic journey benefits from selecting tools aligned with your artistic goals and practical demands.

Thank you for reading this comprehensive comparison!