Any IQ compromise in using electronic shutter?

infoschuerfer wrote:

Very valuable contribution. As a new user of Fujifilm X-S10 and raw editor (On1 Photo RAW 2023), I have come across the following downside of ES: Out of camera, the raw files look the same, except that I see some bright hallo around bright objects (e.g. a porcelain plate).

Then, if you very strongly edit certain parts of the image, e.g. darken, reduce contrast, add lens blur effect to a masked out area, then you start to see strange shapes like stripes and brighter rectangles.

But these stripes and shapes are only visible in the preview while editing, and disappear when the edit is saved. However, these effects obviously are a big hindrance of your editing work.

Took the same picture with mechanical shutter for control: None of these effects.

After realising this and reading your post, I decided to use ES only if absolutely necessary.

However, II would like to understand this better. Any comments to my above observations?

Many thanks in advance.

Aside from the occasional rolling shutter issue and artificial light interaction issues, I don’t see any significant real-world difference between the MS and ES when editing in Lightroom with my X-T2/X-T20. I get a bit more noise with the newer cameras X-T3/X100V when using the ES (due to the faster sensor readout), but no weird artifacts like what you describe. Sounds like a software issue.

I only see a significant differences in bokeh with the X100V’s leaf shutter, which can cause some pretty significant changes in the bokeh rendering beginning at around 1/500” and becoming quite noticeable at speeds beyond 1/1000” or so. No issues with the ES.