Full-Frame Cameras: Everything You Need To Know (Including 4K, APS-C vs Full-Frame & Key Advantages)

No matter what your hobby is, there's probably a discussion about whether size matters when considering performance. For race car driving, it's the quality of the engine. For boxing, it's how hard you can hit. For photography, it's the size of the camera sensor that can really make the difference between your stock standard photo and a Pulitzer prize-winning image.

Previously restricted to professionals due to their cost, full-frame cameras offer more dynamic range than smaller APS-C crop sensors thanks to their increased size. Read on to learn more about full-frame vs crop sensors, including why sensor size matters and which cameras are suitable for your experience level.

Last updated: June 2025

What is a full-frame sensor?

Full-frame camera sensor comparison

In photography, the two main types of camera sensors are full-frame sensors and APS-C (crop) sensors. The easiest way to understand camera sensors is by comparing them to a fishing net — the bigger the net, the more fish you can catch. For cameras, the bigger the sensor, the more light and detail you can capture in a single image.

Full-frame camera sensors measure 24mm × 36mm — roughly the same size as a single frame of 35mm film. APS-C crop sensors, on the other hand, are much smaller at 25.1mm × 16.7mm.

Why does sensor size matter?

Why sensor size matters in photography

It's not just the size of the sensor that matters — it's the size of the pixels. A 24MP photo features 24 million pixels per image. When captured on a full-frame sensor, those pixels can be much larger than on an APS-C sensor, which has a smaller surface area to spread them across.

This difference is most evident when shooting in low-light conditions. APS-C sensors can struggle to capture enough detail without introducing noise and distortion. Full-frame sensors, however, can capture more detail across both the darker and lighter areas of a scene for a more natural-looking image.

Although advancements in photography continue to push the limits of pixel density, the fact remains — size does matter.

Top tip: Shooting in RAW format will maximise the amount of detail you can capture, giving yourself more freedom during the editing and post-production stage.

Using lenses with your full-frame camera

Lenses for full-frame cameras

Probably the most significant selling point for full-frame cameras is their shallow depth of field. An identical 50mm f/1.8 lens on a full-frame camera vs an APS-C camera will produce a different hyperfocal distance, resulting in more background blur (bokeh).

Because APS-C sensors are cropped, any focal length is increased by roughly 1.5x — turning a 50mm lens into an effective 75mm with an aperture of f/2.7, which also affects the field of view. On a full-frame camera, these numbers remain unchanged. Just point and shoot.

Can you use APS-C lenses on a full-frame camera?

APS-C lenses on a full-frame camera

Yes and no. Because of the crop factor, APS-C lenses can only expose a small portion of the full-frame sensor, dramatically reducing image quality. In some cases, the APS-C lens may not function at all when combined with a full-frame camera.

Check out our blog post on crop factor to understand the intricacies of APS-C sensors and how to get the most out of them.

Choosing a full-frame camera

Thanks to the prevalence of smartphones, practically everyone now has a camera. However, full-frame cameras have traditionally been favoured by professionals — their extra functionality and image quality came at a price that put them out of reach for beginners and enthusiasts. Fortunately, the market is now packed with relatively affordable full-frame cameras across both DSLRs and the newer mirrorless category.

Here are some of our favourite full-frame cameras for every skill level.

Full-frame cameras for beginner photographers

  • Nikon Z5 — designed to make full-frame mirrorless cameras more accessible to beginners, the Nikon Z5 is a master class in getting more bang for your buck. It features a 24.3MP FX-Format sensor, 4.5fps continuous shooting, dual UHS-II SD card slots, and a tilting touch-sensitive LCD screen, all inside a weather-sealed magnesium alloy body.
  • Canon EOS RP — Canon's lightest full-frame camera, featuring a 26MP Full-Frame CMOS Sensor capable of 4fps continuous shooting, 4K video, and 4,779 selectable autofocus points.
  • Canon EOS 6D Mark II — one of the few DSLRs on this list, the 6D Mark II provides an entry-level option into full-frame DSLR photography with a 26.2MP full-frame CMOS sensor and a 45-point cross-type AF system.

Full-frame cameras for enthusiasts

  • Sony A7C — compact and lightweight, the Sony A7C delivers more functionality and image quality than ever before, continuing Sony's impressive run in the mirrorless space.
  • Canon EOS R6 — a top-performing mirrorless camera offering 20fps continuous shooting at 20MP, 4K Ultra HD video with up to 8 stops of image stabilisation, dual memory card slots, and up to 6,072 selectable autofocus points.
  • Nikon Z6 II — an updated version of Nikon's acclaimed Z6, featuring a 24.5MP FX-Format sensor, 4K UHD video, and Dual EXPEED 6 processing engines for high-speed shooting and excellent low-light performance.

Full-frame cameras for professional photographers

  • Canon EOS 1DX Mark III — Canon's flagship model, boasting a 20.1MP full-frame sensor, 191-point AF system, 16fps continuous shooting, and 5.5K 60p RAW video recording.
  • Canon EOS R5 — a mirrorless powerhouse capable of 45MP stills and 8K Ultra HD video recording, making it one of the best full-frame travel cameras money can buy.
  • Sony Alpha A1 — equipped with a 50.5MP full-frame Exmor RS BSI CMOS Sensor and BIONZ XR Processor, the Alpha A1 captures incredible images and 8K video, representing the very best Sony has to offer.

Shop full-frame cameras today

Ready to make the upgrade? Browse our full range of mirrorless cameras and DSLR cameras online, or visit your local Ted's Cameras store to speak with one of our friendly experts today.


Are Full-Frame Cameras Better?

One of the most common questions photographers ask when upgrading their gear is: are full-frame cameras actually better? The honest answer is — it depends on what you're shooting and what stage you're at in your photography journey.

Full-frame cameras genuinely excel in a number of real-world scenarios. Because of their larger sensor size (24mm × 36mm), they gather significantly more light than APS-C crop sensor cameras. This translates directly into cleaner images in low-light conditions, better dynamic range, and more natural background blur (bokeh) — all qualities that professionals and serious enthusiasts actively seek out.

That said, 'better' doesn't always mean 'better for you'. APS-C cameras are lighter, more compact, and more affordable. They're also excellent for wildlife and sports photography thanks to the 'crop factor' magnification effect, which effectively extends the reach of your telephoto lenses. A 300mm lens on an APS-C camera behaves like a 450mm lens, giving you more reach without the cost of longer glass.

For portrait photographers, landscape shooters, videographers, and anyone working in challenging lighting environments, full-frame cameras are genuinely superior. For travel photographers, beginners, or those shooting fast-moving subjects on a budget, APS-C cameras remain a compelling option. The key is matching the tool to your creative goals — not chasing specs for their own sake.

If you're considering the switch to full-frame, the good news is that prices have come down significantly in recent years. Entry-level full-frame mirrorless cameras from Sony, Canon, and Nikon now sit at price points that were once reserved for APS-C mid-range bodies, making full-frame more accessible than ever before.


Advantages of Full-Frame Cameras: Why Size Really Does Matter

Understanding the advantages of a full-frame camera helps you make an informed buying decision rather than simply following the hype. Here are the key benefits that set full-frame sensors apart from their smaller counterparts.

Superior Low-Light Performance

The most significant advantage of a full-frame camera is its ability to perform in low-light situations. Because the individual pixels (photosites) on a full-frame sensor are physically larger, each one captures more light per shot. This results in lower image noise (grain) at higher ISO settings, meaning you can shoot confidently in dimly lit venues, at dusk, or indoors without flash — and still come away with clean, sharp images.

Greater Dynamic Range

Dynamic range refers to a camera's ability to capture detail simultaneously in the brightest highlights and the darkest shadows of a scene. Full-frame sensors typically offer a wider dynamic range than APS-C sensors, giving you more latitude when editing in post-processing. This is particularly valuable for landscape photography, where skies can be much brighter than foreground subjects.

Shallower Depth of Field and Better Bokeh

Full-frame cameras produce a more pronounced background blur (bokeh) at equivalent aperture settings compared to crop sensor cameras. This makes them ideal for portrait photography, where separating a subject from a busy background is a key creative technique.

Wider Field of View

Because a full-frame sensor captures the full image circle projected by a lens — without any crop factor — you get the true focal length the lens was designed for. This is especially beneficial for wide-angle and architectural photography, where the APS-C crop factor can make it difficult to achieve a genuinely wide perspective.

Higher Resolution Potential

Full-frame sensors tend to support higher megapixel counts without compromising per-pixel image quality. This means larger prints, more flexibility to crop in post, and greater detail for commercial or fine art applications.

Together, these advantages explain why full-frame cameras remain the preferred choice for professional photographers across portraiture, weddings, landscapes, and studio work.


4K Full-Frame Cameras: The Best Options for Video and Stills

Video capability has become one of the most important factors when choosing a full-frame camera, and the demand for 4K full-frame cameras has surged as hybrid photo-video shooting becomes the norm. Whether you're a content creator, filmmaker, or photographer who occasionally shoots video, understanding what to look for in a 4K full-frame camera will help you get the most out of your investment.

What to Look For in a 4K Full-Frame Camera

Not all 4K is created equal. When evaluating a 4K full-frame camera Before diving into 4K full-frame specs, it's worth understanding how 4K compares to other resolutions — our guide to 1080p vs 4K vs 6K vs 8K video resolution breaks down exactly what each standard means for your footage., pay attention to the following:

  • Full-frame 4K vs cropped 4K: Some cameras shoot 4K video using the full width of the sensor, while others apply an additional crop even in video mode. Full-sensor-width 4K gives you the widest field of view and the best use of your lenses.
  • Frame rates: 4K at 24fps is standard for a cinematic look. 4K at 60fps allows for slow-motion playback and smoother footage. Some flagship models now offer 4K at 120fps for ultra-slow-motion capture.
  • Log profiles and bit depth: Cameras that offer 10-bit recording with S-Log, C-Log, or N-Log profiles give videographers far more flexibility in colour grading during post-production.
  • Rolling shutter: Some full-frame sensors can exhibit 'jello effect' (rolling shutter distortion) in 4K mode. Cameras with stacked or global shutter sensors handle fast motion far more cleanly.
  • Autofocus in video: Fast, reliable, subject-tracking autofocus is essential for video work. Sony's Real-time Tracking, Canon's Dual Pixel CMOS AF, and Nikon's Subject Detection AF are all class-leading systems to look for.

Top 4K Full-Frame Camera Picks at Ted's

The Sony Alpha A7 IV is one of the most popular 4K full-frame cameras available today, offering 4K 60fps oversampled from a 33MP sensor, 10-bit 4:2:2 recording, and Sony's best-in-class autofocus system. The Canon EOS R6 Mark II delivers uncropped 4K 60fps video with exceptional in-body image stabilisation (IBIS), making it a favourite among hybrid shooters. For those wanting maximum resolution alongside stunning 4K video, the Sony Alpha A7R V and Nikon Z8 offer flagship-level performance with internal RAW video recording capabilities.

Whether you're shooting short films, YouTube content, weddings, or documentaries, a 4K full-frame camera gives you the image quality, dynamic range, and creative flexibility to produce truly professional results. Explore the full range of 4K full-frame cameras at Ted's Cameras in-store or online.


4K Full-Frame Cameras: What You Need To Know

If shooting 4K video is a priority, a full-frame camera gives you a significant edge. The larger sensor captures more light per pixel, resulting in cleaner, more cinematic 4K footage with reduced noise — especially in low-light environments. Many modern full-frame mirrorless cameras, including models from Sony, Canon and Nikon, offer oversampled 4K recording, meaning the camera uses more pixel data than the final output requires, producing sharper, more detailed video. When shopping for a 4K full-frame camera, look for specifications like 4K 60p support, 10-bit colour output and in-body image stabilisation (IBIS) — features that collectively elevate your video quality well beyond what APS-C cameras typically offer at a similar price point.


Key Advantages of a Full-Frame Camera

The advantages of a full-frame camera extend well beyond sensor size. Here's what you gain by making the upgrade:

  • Better low-light performance: Larger pixels collect more light, reducing noise at high ISO settings.
  • Greater dynamic range: Full-frame sensors retain more detail in both shadows and highlights within a single exposure.
  • Shallower depth of field: Achieve that sought-after background blur (bokeh) more easily than with APS-C or Micro Four Thirds systems.
  • True focal length: Lenses perform at their stated focal length with no crop factor applied.
  • Higher resolution output: Most full-frame bodies offer higher megapixel counts, making large prints and heavy cropping far more viable.

These benefits make full-frame cameras a compelling choice for portrait, wedding, landscape and commercial photographers alike.


Best Full-Frame Cameras for Video

Choosing the best full-frame camera for video depends on your shooting style and budget. For professional filmmakers, the Sony A7S III remains a benchmark — its 12.1MP sensor is purpose-built for video, delivering exceptional 4K 120p footage and outstanding high-ISO performance. The Canon EOS R5 C is another standout, offering 8K RAW recording in a cinema-oriented body. For those balancing stills and video, the Nikon Z6 III and Sony A7 IV both deliver excellent 4K video alongside strong photography credentials. Key features to prioritise include 10-bit internal recording, log profiles for colour grading flexibility, full-pixel readout without crop, and reliable autofocus during video capture. Visit Ted's Cameras in-store or online to compare the latest full-frame video cameras side by side.