Did you have an X-T1 previously? If you did did it show the same issues?
No, this is my first Fuji. I tested the 10-24 again today, it seems like it only happens inside. But still only this one lens... It was a model house of a new real estate development. White walls, all interior lights on.
This is more of a problem of lighting, rather than a problem with the camera.
Light from incandescent bulbs including the until now very popular low voltage halogen down lights don't do this. It also never happens outdoors in natural light.
LED and fluorescent lamps are the problem.
You did not have this problem 10 years ago on older cameras as we did not have those types of lights, not in the numbers we have them today anyway. Chances are you never noticed this with an X-T1 because you did not use it under such lighting conditions.
By the way the pulsating and discrete spectrum nature of light emitted by these sources play havoc not only with EVFs, but also with AF systems and images themselves.
By all means, have your camera checked out if you suspect its faulty. However, if you take it outside, and this issue is not present it's caused by the artificial light light.
The X-T2 has one of the best EVFs of cameras of any price. It has a refresh rate of 60 times a second in NORMAL mode, or 100 times a second in BOOST mode. The refresh rate will have an effect on the interference with this type of ambient lighting. It may be worth while switching between these modes to see if the flickering is reduced in one mode or the other.
