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Hello,

I have an older Olympus E-M5 and to make the most out of it I use bracketing to ultimately create HDR scenes. There is of course the challenge that the camera should be very still and stable when taking these photo's.

Now, I mostly use AE bracketing with 5 successive shots with different exposures, and I end up with 5 raw images. When merging those into HDR picture it can achieve incredible high quality results, even for a camera that is more than 6 years old.

My question is: can I simulate bracketing? I quickly tried by taking one jpg (not raw), tone down the exposures, save the images, and ultimately use those in HDR merge, with varying results. I guess doing these with raws should result in the same when taking 5 (or even 7) separate multi exposure shots?

If simulating works, than I only need to take 1 shot. I won't be needing a tripod and a cable to a remote shutter button!

Another question: does Affinity support batch processing raw files?

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You are unlikely to gain any advantage in trying to simulate bracketing using jpegs. These are typically 8-bit. You can get some useful pseudo-bracketing if you start with raw files as these are typically 12- or 14-bit.

Most HDR software generates a high bit-depth image (32-bit) which encompasses all the range of exposure values in your multiple exposures. You cannot get this from a single original image.

John

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3 hours ago, DingieM said:

Another question: does Affinity support batch processing raw files?

Yes, but poorly.

If you use File > Open for a raw file, the file opens into the Develop Persona, and the Develop Assistant can automatically apply some adjustments for you.

If you use a Batch Job, or File > Place, or any other method to process a raw file the Develop Assistant is not used. Typically that means that your file will end up darker, and with no automatic lens correction taking place. You can create a macro to approximate what the Develop Assistant would have done, and apply that macro during the Batch Job, but the result won't be as good as Opening it, where you have the benefit of both the Develop Assistant and any additional manual adjustments you want to make before the image is developed.

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