The Sony NEX-6 vs Sony A37: An Expert’s In-Depth Comparison for Photographers

Choosing the right camera, especially when narrowing down to models from the same manufacturer spanning slightly different categories and generations, requires a careful understanding of their design philosophies, technical capabilities, and practical usage implications. Today, I’ll walk you through an extensive, hands-on comparison between two Sony classics from the early 2010s: the mirrorless Sony NEX-6 and the entry-level DSLR Sony A37 (SLT-A37). Both cameras occupy intriguing positions in Sony’s lineup, with overlapping sensor sizes but divergent approaches to autofocus, handling, and form factor.

This comparison goes beyond spec sheets - drawing from rigorous, practical evaluations, and addresses all major photographic disciplines, technical details, and real-world utility. By the end, you’ll have a clear sense which camera fits your photography style, budget, and workflow best.

First Impressions: Design, Size, and Handling

When unboxing and holding each camera, the immediate difference is in body style and size - information fundamental to physical comfort and usage suitability.

The NEX-6 embodies Sony’s early mirrorless vision: compact, rangefinder-style body with a strong emphasis on portability without sacrificing control. Measuring approximately 120 x 67 x 43 mm and weighing 345 g with battery and card, it’s delightfully pocketable for an APS-C sensor camera.
In contrast, the A37 sports a more substantial compact DSLR build - 124 x 92 x 85 mm with a heftier 506 g weight. The bulk derives largely from its SLT (Single-Lens Translucent) mirror design, which integrates a semi-transparent mirror enabling continuous autofocus during video and live view.

Ergonomically, the A37 offers a more pronounced handgrip and traditional DSLR control layout, appealing to users familiar with such designs who prioritize a firm grip and extensive button access on the fly. Meanwhile, the NEX-6, although smaller, impresses with a thoughtfully placed control dial and customizable buttons - enabling a surprisingly responsive shooting experience once you acclimate to the more minimalistic, rangefinder-inspired layout.

For photographers valuing travel-friendly size without sacrificing APS-C image quality, the NEX-6’s compactness is a big plus. Conversely, those who prefer a DSLR feel with larger grip and physical buttons will appreciate the A37’s more substantial body.

Top Plate and Control Interface: Ergonomics in Action

Both cameras feature tilting LCDs and electronic viewfinders (EVF), though their implementation differs in usability and resolution.

Take a look at each camera’s top panel arrangement:

The NEX-6’s top plate puts its dedicated exposure compensation dial front and center - a boon for quick EV adjustments - along with a solid mode dial and a rear command dial, mirroring Sony’s advanced mirrorless heritage.

The A37, on the other hand, integrates the mode dial on the left top corner, paired with an exposure compensation button and less emphasis on dedicated dials. This might feel less immediate for quick mode switching or exposure tweaking, but its overall control scheme is simpler for beginners transitioning from point-and-shoots.

While the NEX-6 offers a more "pro-ish" control feel in a compact shell, the A37’s layout is predictable and generous to beginners, with large buttons that you won't struggle to find.

Sensor and Image Quality: Two APS-C CMOS Contenders

Both cameras feature 16-megapixel APS-C sensors measuring 23.5 x 15.6 mm, but their sensor technology and image processing pipelines differ slightly, impacting image quality.

The NEX-6 utilizes Sony’s Bionz processor optimized for mirrorless’s live view-centric workflows, delivering excellent noise control and dynamic range for its era. According to DXOMark test results, it achieves an overall score of 78, with color depth at 23.7 bits and dynamic range at an impressive 13.1 EV stops. Its low-light ISO performance extends effectively to ISO 1018 (DXO low-light ISO metric), which signifies better noise handling at higher sensitivities.

The A37’s sensor, albeit similar in resolution and area, scored slightly lower with an overall 75, color depth of 23.3 bits, and dynamic range capped near 12.9 EV; low-light ISO rating is 799. The marginal difference primarily owes to incremental sensor design and processing improvements in the NEX-6, combined with better noise reduction algorithms.

For users who need web-sized images or moderate printing, both cameras yield similar results - pleasing colors, solid detail, and excellent edge performance. However, photographers prone to pushing ISO for low light shooting or demanding landscape dynamic range gains may prefer the NEX-6’s edge here.

Viewing the Scene: Electronic Viewfinder and Rear Screen

Understanding composition hinges on viewfinder clarity and screen usability, especially in awkward light or angles.

Both models feature electronic viewfinders, but the NEX-6’s EVF blows the A37’s out of the water, with 2,359k-dot resolution versus the A37’s meager 1,440 dots. This jump equates to a much crisper, cleaner image preview when framing, focusing, and reviewing photos - an advantage particularly visible in bright light or complex scenes.

On the rear, the NEX-6 sports a 3-inch tilting “Xtra Fine” LCD with 921k-dot resolution, whereas the A37 has a smaller 2.6-inch screen with only 230k dots resolution, which feels archaic by modern standards and limits manual focusing precision without the EVF.

The NEX-6’s tilting mechanism (up 90°, down 45°) is very flexible for high- or low-angle shots, street photography candid captures, or when shooting video. The A37 also tilts, but limited resolution and smaller size hamper detailed playback or menu navigation.

From a usage standpoint, the NEX-6’s superior electronic viewing and high-resolution LCD increase confidence during exposure adjustments and manual focus tasks - even though neither camera supports touchscreens or selfie-friendly articulation.

Autofocus System: Speed, Accuracy, and Tracking

Autofocus architecture can make or break usability in dynamic photography. Both cameras feature hybrid AF systems, but their capabilities differ substantially.

The Sony NEX-6 has a 99-point hybrid AF system comprising phase-detection and contrast-detection points, enabling rapid, precise focusing with live view. The system includes face detection, continuous AF, selective area modes, and performs well with moving subjects in both photo and video modes.

The A37’s autofocus, while employing phase detection, offers only 15 AF points with 3 cross-type sensors - more modest and conventional for an entry-level DSLR of its time. It also features sensor-based image stabilization (Sony’s SteadyShot INSIDE), enhancing handheld shooting ability.

While the A37’s autofocus is competent for static scenes and slow action, I found the NEX-6 significantly faster and more reliable in tracking moving subjects such as in sports or wildlife scenarios. The mirrorless system’s live view AF advantage - plus 10 fps burst speed - far outpaces the A37’s 6 fps continuous shooting rate and relatively sparse AF points, making the NEX-6 an obvious choice for action shooters or run-and-gun photographers.

Burst Shooting and Shutter Performance

Speaking of burst rates, these cameras differ markedly:

• NEX-6: 10 frames per second maximum continuous shooting
• A37: 6 frames per second continuous shooting

This speed difference is meaningful. During testing with fast-moving subjects (e.g., cyclists or pets), the NEX-6's 10 fps allowed me to capture more decisive moments and better subject isolation than the A37. The electronic shutter in the NEX-6 can further benefit silent shooting situations, although its max speed tops out at 1/4000s, matching the A37’s mechanical shutter limit.

Build Quality and Weather Sealing

Both lack professional-grade weather sealing and ruggedized exteriors, which limits use in harsh conditions - rain or sand need more careful handling in both cases. Being older models, neither sports freezeproof or crushproof certification.

The A37’s DSLR body feels solid and robust, lending confidence in studio or casual outdoor shoots. The NEX-6’s rangefinder-style body is lighter but feels less rugged in hand, partly offset by modern surface materials but clearly designed with portability over durability as a priority.

Lens Lineup and Mount Compatibility: Expanding Creative Horizons

Both cameras use APS-C sensors but sport different lens mounts:

• NEX-6 uses Sony’s E-mount, designed primarily for mirrorless bodies. This system boasts a rapidly growing lens ecosystem, with over 120 native lenses available - including fast primes, zooms, and specialty optics. Third-party manufacturers like Sigma, Tamron, and Zeiss also support E-mount extensively.

• A37 fits Sony/Minolta Alpha A-mount lenses, compatible with upwards of 140 lenses. Many are legacy but still highly regarded optics from Minolta’s decades of development, especially in autofocus and build quality.

Sony NEX 6 front Sony NEX 6 screen back Sony A37 front Sony A37 screen back

Interestingly, with an adapter, E-mount lenses can also fit A-mount bodies, though performance and AF speed may be compromised.

If lens availability and future-proofing appeal to you, the E-mount for the NEX-6 is the more versatile, modern choice. For those invested heavily in A-mount glass or portability is less critical, the A37’s mount will provide access to a broad legacy selection, including professional-grade lenses.

Battery Life and Storage

Battery endurance is another practical consideration.

• Sony NEX-6 offers roughly 360 shots per battery charge (CIPA standard).
• Sony A37 manages about 500 shots per charge, a noticeably longer lifespan typical of DSLRs with more power-efficient optical systems.

Both cameras utilize the same NP-FW50 battery model, simplifying spare battery options - a smart design decision. However, the A37’s superior battery life better suits longer field sessions or travel without frequent recharging.

In terms of storage, each supports single slots for SD or Memory Stick media, with no dual card slot option - which aligns with their user-level positioning.

Video Features: Capability and Usability

Both cameras record Full HD video with slightly different codecs and frame rate options:

• NEX-6: records 1080p at 60 and 24 fps using MPEG-4 and AVCHD formats.
• A37: records 1080p at 60 and 30 fps; supports H.264 codec along with MPEG-4 and AVCHD.

Neither offers 4K or higher resolution.
The NEX-6 lacks microphone or headphone ports, limiting advanced audio monitoring, while the A37 incorporates a microphone input, which is a boon for improving sound recording quality.

Electronic image stabilization is present in the A37's sensor-based system, reducing handheld video shake, an advantage over the NEX-6 which does not feature in-body stabilization.

For casual video users or vloggers, the A37 edges ahead in audio flexibility and stabilization; the NEX-6 excels in clean output and frame rate options but requires external audio solutions.

Application Across Photography Genres: Performance Breakdown

To give you a holistic view, here’s an expert-rated photography-type performance comparison chart based on extensive testing and analysis:

• Portraits: The NEX-6’s higher-resolution EVF and face detection deliver superior ease in framing and maintaining precise focus on eyes - producing smooth skin tones and attractive bokeh with fast primes. The A37’s autofocus lags slightly but produces reliable results on budget lenses.

• Landscape: Both cameras’ 16MP sensors offer sharp detail and good dynamic range (favoring NEX-6). The lack of weather sealing on both is a limitation; however, the NEX-6’s lighter weight makes carrying hefty tripod setups easier.

• Wildlife and Sports: The NEX-6’s 10 fps burst, richer AF coverage, and better tracking make it a clear winner. The A37’s 6 fps and less dense AF points are decent but less suited for prolonged fast action.

• Street Photography: NEX-6’s compact form factor, quiet operation (silent shutter mode), and high EVF resolution give it the edge in discretion and speed. The bulkier A37 is more conspicuous but offers longer battery life.

• Macro: Both cameras lack dedicated macro focus stacking or post-focus features - but standard lenses paired with manual focus work adequately; the NEX-6’s higher-resolution screen and EVF assist better precision.

• Night / Astro: The NEX-6’s slightly better low-light ISO rating and higher dynamic range make it preferable for night sky work, though neither camera rivals modern specialized astro gear.

• Video: The A37’s mic port and image stabilization make it more video-friendly overall, particularly in handheld scenarios.

• Travel: NEX-6’s smaller size and lighter weight are perfect for travel photographers prioritizing mobility and versatility.

• Professional Work: Neither camera is targeted at professional-grade workflows; however, Sony’s RAW support in both is robust. The NEX-6’s faster AF and smaller size might appeal to semi-pros or enthusiasts who travel light.

Overall Performance Ratings and Value Assessment

Taking all factors into account, here's a summary rating matrix reflecting real-world lab and field testing:

• Sony NEX-6 overall score: 78 (technology-forward mirrorless, better image quality, AF, portability)
• Sony A37 overall score: 75 (solid entry DSLR, slightly inferior sensor IQ, better battery life, and stabilization)

In terms of price, the NEX-6 commands a lower street price (~$365) compared to the A37 (~$522), making it a better value considering feature set and performance.

Final Thoughts and Recommendations: Who Should Get Which?

My experience confirms that both the Sony NEX-6 and A37 are capable APS-C cameras, but they cater to somewhat different users.

• Choose the Sony NEX-6 if:

  • You prioritize portability and a compact form factor.
  • You require fast, accurate hybrid autofocus for action, wildlife, or street photography.
  • You want superior EVF and LCD quality for critical framing.
  • You value a modern E-mount lens ecosystem with future growth potential.
  • You’re budget-conscious but want versatile performance.

• Choose the Sony A37 if:

  • You prefer DSLR handling with a substantial grip.
  • You need longer battery life for extended shoots.
  • Video mic input and in-body stabilization are important for your projects.
  • You are invested in or prefer using A-mount lenses.
  • You are an entry-level user transitioning from basic digital cameras and want an easy control layout.

Both cameras have limitations in weather sealing and advanced video features, so if those are critical for you, exploring newer Sony models would be advisable.

How We Tested and What It Means for You

Our assessments rest on hundreds of hours shooting in varied lighting and subject conditions - ranging from studio portraits and landscapes to wildlife in natural settings and fast-paced street shooting. Objective metrics from DXOMark and other labs guided analysis while extensive side-by-side practical tests underscored real daily usability.

Reliability and durability were evaluated via prolonged use, handling rough outdoor situations whenever possible. Battery life tests followed industry-standard CIPA protocols, reflecting typical field use.

This approach ensures that what you read here translates smoothly into your own photographic challenges and artistic ambitions.

Closing Summary

In the evolving camera landscape, the Sony NEX-6 and A37 each stand as strong representatives of their time - offering excellent image quality, capable features, and solid value. However, the NEX-6’s forward-looking mirrorless design and superior autofocus technology make it the more compelling choice for most enthusiasts and semi-professionals, especially those on the move or handling dynamic subjects.

Meanwhile, the A37 remains a solid DSLR option for beginners or traditionalists appreciating optical viewfinder ergonomics and straightforward usability, with beneficial video inputs and stabilization support for multimedia work.

Armed with this comprehensive guide and clear understanding of practical pros and cons, I’m confident you can identify the best fit between these two worthy contenders.

Happy shooting!

If you’d like to see side-by-side image samples from both cameras, check this gallery:

Sony NEX 6 front Sony NEX 6 screen back Sony A37 front Sony A37 screen back