Focus bracketing using Fujifilm X-T3

In-camera focus bracketing was used to shoot 35 photos automatically. Adobe Photoshop CC 2017 was used to create the focus-stacked composite image shown below.

Focus-stacked composite image

The toy is a Poliwrath, one of many Pokemon characters. The 7″ plastic ruler is from the Calvert Marine Museum. Do you know why the small ruler is 7″ long rather than the more common 6″ length? Please leave a comment if you know the correct answer.

Photo No. 1

The camera was focused manually on the closest point in the foreground, before pressing the shutter button.

80mm (120mm, 35mm equivalent) | f/8 | 1/250s | ISO 160 | 0 ev

Select photos from the 35-photo set show the focus point advancing automatically from the foreground to background.

Photo No. 5

80mm (120mm, 35mm equivalent) | f/8 | 1/250s | ISO 160 | 0 ev

Photo No. 20

80mm (120mm, 35mm equivalent) | f/8 | 1/250s | ISO 160 | 0 ev

Photo No. 35

80mm (120mm, 35mm equivalent) | f/8 | 1/250s | ISO 160 | 0 ev

Related Resources

Tech Tips

Minimal effort was invested in arranging the subjects and lighting the scene.

Some trial and error is required in order to determine the correct focus bracket settings for a given combination of camera and lens, in this case, my Fujifilm X-T3 and 80mm macro lens.

As it turns out, I shot six sets of test shots before I found settings that worked the way I wanted. The following settings were used to shoot the 35 photos for the focus-stacked composite image featured in this post: Frames = 35; Step = 10; Interval = 3 s.

The camera was set to save files as FINE+RAW. In the interest of expediency, the composite image was created using JPGs straight from the camera. Photo No. 1, 5, 20, and 35 are also unedited JPGs.

What are the take-aways?

The technique works as advertised and should help to save time by automating the most tedious part of the process of creating focus stacks. Further experimentation is planned.

Copyright © 2020 Walter Sanford. All rights reserved.

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One Response to “Focus bracketing using Fujifilm X-T3”

  1. Mike Powell Says:

    Wow. Focus bracketing actually seems to work. Sometimes camera manufacturers overhype the new features in a camera that never seem to work as well as advertised. I knew that some camera could do focus bracketing, but I thought it was more like 3 or 5 images. I had no idea you could do anywhere near as many as the 35 you shot here.

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