The HDR tools in Affinity Photo allow you to merge a set of three or more bracketed exposures to create an image with an expanded dynamic range – perfect for retaining detail in high-contrast scenes, like our costal landscape above.
Here we’ll look at the HDR controls in Affinity Photo. First we use the HDR merge command to combine our images. This offers basic controls that allow us to fix ghosting and misalignment between frames. Once our set of exposures are merged into a 32-bit HDR image, we have a rich level of colour and detail to work with, but initially the image can look a bit flat. The trick is knowing how to tease out the details.
Using the Develop persona in Affinity Photo, we can enhance our HDR image and give it some much-needed punch. There are a range of handy tone-mapping presets we can use to get us started, then we can go on to use the manual controls to boost colour, tweak white balance and add punch. Once done, we can finish off our image in the Photo persona by retouching any details. The results can be just as impressive as those from other image editors like Photoshop or dedicated HDR software.
Go to File > New HDR Merge. Next click Add, then go to your set of bracketed exposures and shift-click between the first and last to highlight them and hit Open. In the merge options check ‘Automatically remove ghosts’. This fixes discrepancies between frames, like the waves and boat here.
In the merge options you can choose to ‘Automatically align layers’. This can be useful if a tripod was not used, or if there’s misalignment between images in the set. You can tailor the alignment to ‘scale, rotate and translate’ or ‘perspective’. The latter is more suitable for nudges during capture.
Checking noise reduction can be useful if the set of photos are Raws, but for JPEGS it’s usually best to turn it off. Checking ‘Tone Map’ will automatically adjust the tones to even out the highlights and shadows, but we can tweak these afterwards too if we need to. Hit OK to merge the HDR.
Once your image is merged, go to the Presets panel on the right and choose one of them as a starting point for your tone-mapping. Here we’ve used the ‘Detailed’ preset, which enhances the texture in the rocks and the detail in the sky. Next, go to the tonal tools on the right and fine-tune the look you want for the photograph.
Check ‘White Balance’ on the right side, then drag Temperature to the right to if you want to warm the tones. Next, drag Saturation to the right to make the colours more intense. Check Shadows and Highlights, and reduce the highlights slightly if you're seeing some areas blow out. Check ‘Curve’ and plot an S-shape, as shown, to boost contrast.
When you’re happy with your tone-mapping, hit Apply. You can now finish off the image in the Photo persona. We’ve removed some messy spots of sand in the foreground in our image. When you’re happy, go to File > Export to export the image in a usable 8 or 16-bit format, like a JPEG or TIFF.
Quick tip
HDR photography begins in-camera by taking a set of exposures to record optimum detail in the brightest and darkest parts of a scene. Here the contrast between sky and land is too great to be captured in a single frame, so we take a series of bracketed exposures. It’s best to use a tripod and cable release so the frames are in perfect alignment, but if you don’t have one you can get away with hand-holding – keep the camera as steady as possible and use a fast drive mode to shoot frames quickly.
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