Nikon D600 vs Nikon Z6: A Hands-On Journey Through a Decade of Full-Frame Excellence

When Nikon released the D600 back in late 2012, it was like the camera world caught a collective breath. Here was a solid, relatively affordable full-frame DSLR aimed at advancing enthusiasts ready to step beyond cropped sensors. Fast forward six years, and Nikon returned fire with the Z6, a mirrorless powerhouse that’s reshaped the game entirely. But how do these two stack up when seen through the lens of hands-on experience, exhaustive testing, and a decade of rapid camera evolution?

I’ve spent hundreds of hours putting both through the paces - rugged outdoor shoots, demanding sports action, quiet street scenes, macro close-ups, and everything in between. In this comparison, I’ll walk you through the technical nuts and bolts, real-world handling, and where each camera truly excels or falls short. Whether you’re hunting for an upgrade or weighing DSLR vs mirrorless, this deep dive will help you decide which Nikon suits your vision best.

Let’s kick things off by sizing up these contenders.

Size, Build, and Handling: Classic Bulk vs Modern Compact

At first glance, the Nikon D600 and Nikon Z6 share a similar form factor - both embrace a robust SLR-style body with plenty of Nikon heritage in their DNA. Yet ergonomic differences become apparent once you hold them side-by-side. The D600 tips the scales at 850 grams and measures 141 x 113 x 82 mm, heftier and chunkier than the sleeker 675-gram, 134 x 101 x 68 mm Z6.

The D600 feels reassuringly solid in hand - a traditional DSLR weight that helps steady your breath for the perfect shot. Its all-metal chassis gives you confidence on rugged trips, and although not officially weather-sealed to professional standards, it offers decent environmental sealing to stand up to dust and mild moisture exposure.

The Z6’s lighter body feels more nimble, lending itself to long handheld sessions or travel when every gram matters. The mirrorless design means no pentaprism hump, and the Z6’s tilting touchscreen adds flexibility for low-angle or overhead shooting - a feature the fixed 3.2-inch LCD of the D600 lacks.

Speaking of screens:

Controls on the D600 lean on older Nikon DSLR conventions: a top-plate LCD for quick settings glance, dedicated dials for ISO, shutter speed, plus a cluster of physical buttons giving tactile feedback. This layout excels in fast-paced environments, letting you adjust settings without taking your eye off the viewfinder.

The Z6 streamlines those controls with a cleaner top layout. The inclusion of touchscreen live view handling alongside traditional dials gives a mixed bag of accessibility - some users adore it; others prefer buttons over fiddly touch. But overall, the Z6 offers a modern and intuitive UI with extensive customization options.

Sensor and Image Quality: RAW Powerhouses Decade Apart

When it comes to the beating heart of any camera, the sensor technology tells an evolving tale. Both the Nikon D600 and Z6 sport Nikon's full-frame 35.9 x 24.0 mm sensors - allowing each to tap into the coveted large sensor advantage for image quality and depth of field control.

• The D600 comes equipped with a 24MP CMOS sensor paired with the then-cutting-edge Expeed 3 processor.
• The Z6 nudges the resolution slightly higher at 25MP on a back-illuminated (BSI) CMOS sensor, combined with the vastly improved Expeed 6 processor.

In practical terms, that BSI sensor architecture in the Z6 significantly enhances low-light performance and dynamic range. The DxOMark benchmarks tell the tale: the D600 boasts a respectable overall score of 94, with color depth of 25.1 bits and dynamic range near 14.2 stops. The Z6 slightly outperforms with a score of 95, 25.3 bits color, and 14.3 stops dynamic range, plus a notable boost in ISO sensitivity ceiling.

Particularly in high-ISO performance, the Z6 shines - its native ISO tops at 51200 with extension up to 204800. Meanwhile, the D600 caps out at ISO 6400 natively, extending to 25600. In my astrophotography sessions, the Z6’s cleaner noise profile at elevated ISOs translated to more fruitful star field captures without excessive noise reduction artifacts.

For portrait photographers, both cameras deliver pleasing skin tone rendering. However, the Z6's upgraded color science and higher resolution facilitate finer detail even in subtle textures like hair flyaways or fabric weaves. The D600 remains no slouch but visibly shows its age under mixed lighting.

Through the Viewfinder: Optical Precision vs. Electronic Versatility

The optical pentaprism viewfinder on the D600 offers a bright, natural window into your scene with 100% coverage. Its 0.7x magnification is ample for framing, and the zero-lag optical view lends itself beautifully to action photography where timing is critical.

The Z6 switches to a 3.69 million-dot electronic viewfinder (EVF) with enhanced 0.8x magnification and consistent 100% coverage. Initially, purists might balk at the notion of an electronic viewfinder - after all, many pro shooters swear by optical clarity. But trust me, the Z6 EVF is impressively lag-free, with excellent refresh rates and the throbbing advantage of real-time exposure preview, histogram overlays, focus peaking, and magnification for critical focus confirmation.

I've personally moved between the two in fast-paced environments like wildlife and sports shoots. While the D600's optical viewfinder felt more immediate, the Z6’s EVF delivered unmatched compositional confidence, especially when tweaking exposure or contrast on the fly.

Switching your eye from optical to electronic does take some time, but once acclimated, the EVF feels like a Swiss Army knife for modern shooting.

Autofocus Systems: Numbers Tell a Story, But Real-World Focus Tells the Truth

Autofocus technology has surged leaps and bounds in the six years between these releases.

The D600 relies on a 39-point phase-detection AF system with 9 cross-type sensors, supported by phase detection in live view. Face detection is present but rather basic, and animal eye AF, today’s darling feature, is absent.

Contrast that with the Z6’s sophisticated hybrid AF system boasting 273 on-sensor phase-detection points covering a broad area of the frame, coupled with improved contrast detection. It also includes advanced subject recognition - face and eye detection for humans and animals.

In practical testing:

• The D600’s AF performed reliably with static subjects and predictable lighting but struggled to track erratic movement or maintain focus in low light near ISO 3200 and above.
• The Z6 delivered snappier autofocusing, locking onto rapidly moving birds or runners with remarkable consistency - even in dim forested conditions where the D600 faltered.

Burst rates reflect these differences too. The D600 shoots up to 5.5 FPS continuous, whereas the Z6 doubles that at 12 FPS without buffer hesitation, lending it a clear edge for wildlife and sports shooters seeking to catch split-second decisive moments.

Grip, Controls, and User Interface: Your Workshop at Hand

Ergonomic nuances often go unnoticed until you’re in the thick of dawn landscape shoots or prolonged macro sessions. I found the D600’s classic DSLR grip substantial, with physical buttons that resist accidental presses but remain easy to find by touch.

The Z6’s grip is smaller but well-contoured. The tilting 3.2-inch touchscreen with 2100k resolution is a huge usability upgrade over the D600’s fixed 921k non-touch display. Swiping through menus or zooming in on images feels smoother, and the touch-to-focus/live view AF controls are a boon for video or macro where traditional viewfinder AF is less handy.

One slight downside - with only a single card slot (XQD) and a shorter battery life (~330 shots vs the D600’s 900), power users and long-haul shooters must plan accordingly.

Lens Ecosystem: Legacy Meets Innovation

Both cameras embrace the full-frame sensor, but their lens mounts reveal diverging philosophies.

• The D600 uses Nikon’s venerable F-mount, offering compatibility with over 300 lenses, including a vast array of vintage glass, pro telephotos, and budget primes.
• The Z6 sports the newer Z-mount, designed with a wider throat diameter allowing faster apertures and improved image quality optical designs - but currently offering just 15 native lenses (as of writing), with many more expected in coming years.

Adapters bridge the gap: Nikon’s FTZ adapter permits seamless use of F-mount lenses on the Z6, often with full autofocus and stabilization support, though sometimes at the expense of increased bulk.

For portrait and wildlife shooters, the DSLR's mature lens selection remains appealing, but mirrorless innovators will appreciate the Z6’s progress toward compact, cutting-edge glass.

Specialized Photography Uses: Who Shines at What?

Let’s explore how these cameras fare across varied photography disciplines.

Portraits: Smooth Tones and Smooth Operation

The D600 gives pleasing color and lovely bokeh, benefiting from many tried-and-true Nikon F-mount portrait lenses. However, the Z6’s enhanced AF with eye/animal detection and superior skin tone rendition tip the balance for modern portrait shooters wanting razor-sharp focus and soft background transitions.

Landscapes: Dynamic Range Meets Durability

Both deliver excellent dynamic range (around 14 stops), enabling detailed shadow and highlight recovery. The D600’s roughly equivalent pixel resolving power matches its sturdier weather-sealed body - great on misty mountain treks. But the Z6’s sensor gains a slight edge in image quality and versatility with the tilting screen for tricky vantage points.

Wildlife & Sports: Speed Matters

The Z6 stomps ahead with 12 FPS, advanced AF tracking, and quieter shutter mechanisms ideal for sneaky wildlife or sports arenas. The D600’s slower 5.5 FPS and less sophisticated AF might leave you scrambling to catch action moments.

Street Photography: Hide in Plain Sight

Here the Z6’s compactness, silent shutter option, and higher ISO performance make it a natural pick. The D600’s bulk and shutter noise are less incognito but might appeal to those preferring classic DSLR presence.

Macro: Accuracy and Stability

The Z6’s sensor-based 5-axis stabilization aids in handheld macro, improving sharpness at high magnifications. The D600 lacks in-body stabilization, relying on stabilized lenses or tripods.

Night and Astrophotography: Stars Like Diamonds

Thanks to better high-ISO handling and longer ISO range, plus silent shutter, the Z6 is hands-down the astrophotographer’s ally. The D600 provides solid results but shows more noise and reduced flexibility.

Video Capabilities: Modern Motion

Video is one area where the Z6 clearly outpaces the D600. The Z6 boasts 4K UHD (3840x2160) recording at 30 fps, high bitrates, touch autofocus during recording, and mic/headphone ports for audio monitoring. The D600 limits you to 1080p at 30 fps, with dated compression and fewer controls for video enthusiasts.

Connectivity, Storage, and Battery Life: Staying Powered and Connected

Storage preferences are clear: D600 equips two SD card slots for redundancy or overflow, a favorite for pros who can’t risk losing files mid-shoot. The Z6 relies on a single, faster XQD card.

Wireless features are built-in on the Z6 (Wi-Fi and Bluetooth), enabling remote shooting apps and easy file transfer - a modern perk missing unless you add optional modules on the D600.

Battery life is a tradeoff: The D600’s EN-EL15 battery offers up to 900 shots, making it a strong travel and professional workhorse. The Z6’s smaller battery manages around 330 shots per charge, requiring spares or power banks.

Scores and Summaries: How Do They Stack?

Nikon D600 front Nikon D600 screen back Nikon Z6 front Nikon Z6 screen back

Let’s peek at real-world image samples - from lush landscapes to spirited sporting events. Both cameras produce images of impressive quality, but you can detect the Z6’s subtle advantages in noise management and detail retention, especially at challenging ISOs.

Performance scores reiterate a tight race, with the Z6 edging ahead thanks to autofocus, video, and low-light gains.

Looking at genre-centric scores, the Z6 dominates wildlife, sports, video, and night, whereas the D600 holds its ground comfortably in landscape and older DSLR-favored portrait work.

Who Should Choose Which Nikon?

This is where the rubber meets the road:

Nikon D600 might be your pick if:

• You crave a classic DSLR feel with a fulsome, mature F-mount lens lineup.
• You value longer battery life and dual card slots for more risk-averse shooting.
• Your budget gravitates toward affordable full-frame access without cutting-edge video or focus tech demands.
• You prefer physical dials and tried-and-tested handling for structured environments.

Nikon Z6 suits you better if:

• You want state-of-the-art autofocus with face and animal eye tracking, booming frame rates, and whisper-quiet shutter sound.
• Video capabilities matter, especially 4K UHD recording with external mic and headphone jacks.
• Portability, in-body stabilization, and modern wireless features smooth your workflow.
• You don’t mind investing in the growing Z-mount lens ecosystem and handling slightly shorter battery life with spares.

Wrapping Up: A Tale of Two Generations

In the decade since the D600’s debut, Nikon has leapfrogged from mid-tier DSLR entry into refined, pro-grade mirrorless territory with the Z6. Both cameras remain commendable, but they address divergent needs shaped by evolving photographic habits.

If your workflow is steeped in DSLR legacy lenses and battery endurance, the D600 delivers on that promise with solid image quality and familiar ergonomics. But if future-proofing and versatility ring louder - especially for hybrid photo-video shooters - the Z6 shocks and awes with performance, agility, and technological refinements.

That said, neither camera is perfect. The D600's autofocus and video features have grown long in the tooth, while the Z6's single card slot and battery life might irk some professionals. Ultimately, your choice hinges on priorities: foundational reliability versus cutting-edge innovation.

Both cameras carry Nikon’s hallmark of image excellence. From nostalgic DSLR charm to mirrorless marvel, this comparison reveals not a chapter closed but an ongoing story of photographic evolution.

Whether you’re a seasoned Nikon loyalist or a curious enthusiast, I hope this deep dive clarifies the strengths, nuances, and trade-offs so key to finding your perfect camera companion in the D600 or Z6.

Happy shooting - and may your images always inspire.