HDR photography explained

Capturing the perfect balance between light and dark is one of photography’s oldest challenges. Whether it’s a glowing sunset, a backlit portrait, or a city skyline at dusk, scenes with extreme contrast often leave photographers choosing between blown-out highlights or murky shadows. High Dynamic Range, or HDR, photography bridges that gap, allowing you to reveal more detail across the full range of brightness. And in Canon’s latest cameras, HDR has evolved from what used to be a complex, tripod-based technique into something anyone can try, straight out of camera.

“HDR has been part of Canon cameras for more than a decade,” says Tibor Szövetes, Product Manager at Canon Europe. “Back when it first appeared in the EOS 5D Mark III, the big step forward was that the camera could blend multiple exposures automatically, so people didn’t need to process them manually. Now, with HDR PQ and the HEIF file format, everything that we knew about JPEGs has been expanded in all directions – smaller files, more colour, more detail, and a wider dynamic range.”

Within the Canon EOS camera range, Canon introduced its first dedicated in-camera HDR mode in 2012 with the EOS 5D Mark III, which was able to merge three exposures into a single JPEG with improved highlight and shadow detail. Eight years later, the Canon EOS-1D X Mark III marked another milestone as the first Canon camera to shoot HDR PQ (Perceptual Quantisation) stills, delivering the same high dynamic range in a single 10-bit HEIF image.

Today, nearly all EOS R-series cameras include some form of HDR, from Auto Exposure Bracketing (AEB) to in-camera stacking and HDR PQ single-shot capture.

Traditional HDR involves capturing several exposures – typically one underexposed, one at normal or even exposure, and one overexposed – and merging them into a single image that retains detail in both shadows and highlights. Canon’s AEB mode automates this process, making it easy to capture a bracketed sequence of images that are ready for combining in Canon’s Digital Photo Professional (DPP) or other software.

In-camera HDR stacking takes this process a step further by eliminating the need for software and blending your multiple exposures directly in the camera to produce a ready-to-share JPEG. This approach is ideal for static subjects such as landscapes, interiors, or architecture, where maximum tone control is the goal.

Traditional HDR remains the best choice when you want the widest possible dynamic range, since merging several RAW exposures delivers the widest dynamic range the camera’s sensor can produce.

“If you want to get absolutely every detail from the deepest shadows to the brightest highlights,” Tibor explains, “traditional HDR stacking still gives you the most flexibility and the broadest dynamic range to work with.”

For long exposures, a tripod still helps when shooting a static scene (with moving subjects, there are still issues with ghosting, as seen in the image below), but with the advent of in-body image stabilisation (IBIS) and stabilised lenses, handheld HDR has become far more achievable.

“Even traditional HDR is easier now,” says Tibor. “In the past you really needed a tripod to keep everything aligned, but with IBIS and optical stabilisation working together, you can handhold shots that are one, two or even three seconds long. You can do a lot more handheld rather than tripod-bound, provided there are no moving subjects in the frame.”

Where traditional HDR merges several frames, HDR PQ achieves a similar result in a single image. The camera records extra highlight and shadow information in a 10-bit HEIF file, giving smoother colour gradation, more natural tones, and visibly greater dynamic range. And because it only needs one shot, HDR PQ eliminates motion blur and ghosting, which is a huge advantage for when you’re photographing moving subjects.

“With HDR PQ, you get a wider dynamic range from just one image,” Tibor explains. “That makes it great for anything with motion, such as pets, kids, even people walking. There’s no ghosting, no need for a tripod, and the file size is smaller, so you can shoot more without filling your card.”

HEIF files can be viewed directly on HDR-capable monitors or modern TVs (via a standard size HDMI cable direct from the camera), showing the full range of tones without any extra editing. They can also be converted to JPEG or TIFF in-camera or in DPP for easy sharing.

Despite their high quality, HEIF files are smaller than RAW, TIFF, and even JPEGs, offering an efficient balance between detail and storage space. Their natural, lifelike rendering means your colours appear smoother and less artificial, with subtle transitions that closely match what the human eye perceives.

Both HDR methods have their strengths, and the best choice depends on what you’re shooting and how much control you want over the final image. Traditional HDR gives you full flexibility and is great if you enjoy editing or want to craft a particular mood. HDR PQ, on the other hand, is designed for simplicity and realism. It gives you that same expanded tonal range in a single shot, so you can capture the scene as you saw it, without spending time in post-production.

“HDR PQ is for people who just want great results straight out of the camera,” Tibor explains. “You don’t need to think about bracketing or blending – the dynamic range is already there in one image. But if you want to experiment or push your look creatively, traditional HDR stacking still has its place.”

Next, let’s look at how dynamic range compares across different file types.

Dynamic range measures how much detail a camera can record between the darkest shadows and brightest highlights. The wider the range, the more information your camera captures in both extremes, meaning you can see subtle detail in areas like bright clouds without losing texture in shaded areas.

This range is often described in stops of light. One stop represents a doubling or halving of light, so a difference of two or three stops can be significant when it comes to preserving highlight or shadow detail.

Put simply, an image captured with 18 stops of dynamic range can hold far more tonal information than one with 11 stops, meaning more realistic depth, smoother transitions, and better control when editing.

This comparison shows the difference between HDR PQ and SDR mapping: the HDR version (pictured left) retains more highlight detail and smoother colour, while the SDR render (pictured right) compresses dynamic range for standard displays.

These figures are illustrative, but they show how far HDR PQ narrows the gap between single-shot and multi-frame HDR workflows. The higher the number of stops, the more flexibility you have to recover highlights and shadows when processing your images later.

Most of Canon’s current mirrorless range includes HDR options. The EOS R10, R50, R6 Mark II, and R8 all offer both HDR stacking and HDR PQ stills, while higher-end models such as the EOS R5, R5 Mark II and R3 bring professional-level HDR still and movie capabilities. Even entry-level models like the EOS R100 offer HDR-style scene modes that balance backlit subjects automatically.

The semi-pro Canon EOS R6 Mark III also supports both HDR stills and HDR movies, using a single exposure to create true HDR video output. It sits between Canon’s enthusiast and professional ranges, offering advanced HDR capability in a compact, versatile body.

(First in-camera HDR: Canon EOS 5D Mark III – 2012; first HDR PQ: Canon EOS-1D X Mark III – 2020)

Getting started with HDR is easier than you might think. Whether you're shooting landscapes, interiors, or fast-moving subjects outdoors, a few simple techniques can help you make the most of your camera's HDR capabilities. Here are some tips to get you started:

• Enable Highlight Tone Priority (D+): this setting boosts highlight detail without over-saturating colours. It’s a great way to protect skies and bright areas while keeping natural contrast.
• Use IBIS and IS lenses: combine your in-body and lens stabilisation for sharper handheld results in both HDR and HDR PQ modes. This is especially useful in low light or when shooting without a tripod.
• Try DPP or DPP Express: Canon’s software makes it easy to merge exposures, edit HDR stacks, or fine-tune HEIF files so you can experiment with tone mapping to find your preferred look (note: DPP Express is subscription-based).
• Check your results on an HDR display: most modern TVs and monitors are HDR-capable and can display HDR PQ images natively, so you can instantly enjoy the full colour and contrast range straight from your camera.
• Convert HEIFs to JPEG or TIFF: if you plan to share your shots on social media or view them on standard screens, convert HEIF files in-camera or in DPP while keeping the HDR richness intact.
• Mind your exposure: when shooting HDR, it’s often better to slightly underexpose than risk clipping highlights, especially in bright skies.

Ultimately, HDR is about seeing your photos as your eyes see the world. With Canon’s latest EOS cameras, it’s simpler and more flexible than ever before, whether you want full creative control using traditional stacking or lifelike, instant results with HDR PQ. You can capture handheld, share instantly, and enjoy your HDR images on the tech you already own.

“HDR photography helps you capture the whole scene the way you experienced it,” Tibor says. “But if you’ve been using traditional HDR stacking, HDR PQ is the next step, as it’s faster, cleaner, and built into Canon’s latest cameras for stunning results without the extra work.”

With Canon’s latest EOS R mirrorless range, HDR photography has never been easier or more rewarding to explore.

Written by Jeff Meyer