One of the interesting capabilities of the Olympus OM-D E-M1X is its in-camera focus stacking function. This feature allows a photographer to capture a range of focus stacked images and process them in-camera. The output is a jpeg file.

Other Olympus cameras like the OM-D E-M1 Mark II and E-M5 Mark III also have In-Camera Focus Stacking. What makes using this feature with an E-M1X even more interesting is utilizing its outstanding IBIS performance.
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https://mirrorlesscomparison.com/stories/handheld-macro-in-camera-focus-stacking-with-olympus-om-d-e-m1x/