IBIS problem after FW 4.00

[George_P]

Please correct me if I am missing something, but as far as I can tell the image stabilisation (IBIS and OIS) has been affected by the recent FW update to V4.00 on X-T5 (and so it seems, to V4.40 on X-T2). I expect the same problem on X-H cameras after the recent update, maybe someone would like to test. 

Previously, you could choose to have IS on full time (“Continuous”) or only when you press the shutter button to focus (“Shooting Only”). 

Now this works only in AF-C. In AF-S when you switch to Shooting Only, IS does not work. Continuous works. In AF-M I have to try yet. 

I tried with the XF90, XF18 F1.4, XC50-230, XF18-55. Seems to me like a bug in the new FW that could be corrected in future updates. 

Has anyone else encountered this or has anyone perhaps found some relationship to other settings that could influence this behaviour ? 

Edited July 2, 2024 by George_P
typo

[Greybeard]

Are you sure Shooting Only IS isn't working with AF-S?

The difference between AF-C and AF-S is that you get IS with half press in AF-C but in AF-S it doesn't take effect until you fully press the shutter.

Try taking images with a very low shutter speed and look at them in playback (or on a computer)

[George_P]

I stand corrected. But, if I remember correctly and I don't need to get corrected again, before it was so that when you half-pressed, the image stabilised. With a long lens It was easier to precisely frame the shot while you were half-pressing before you took the shot.

Now in AF-S, IS set to "Shooting Only", half-pressing does not stabilise, but @Greybeard, sir you are right, the actual image is stabilised as the shot is taken.

In AF-C, the behavior is as I remember it, with IS set to "Shooting Only" half-pressing stabilises the image. You can clearly see this in the viewfinder. With miniscule movements of the camera, the image moves with the camera while half-pressing, but the camera moves versus the image while not.

I don't know if this was changed with the most recent FW or earlier. Heck, I am not even sure if I remember this from Fujifilm X-T10, X-T2 or from my previous brand. I haven't been using long lenses for quite some time. Am I right ? Or was this only in AF-C from the start ? Thank you.

 

Edited July 2, 2024 by George_P
typo

[George_P]

X-T10

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X-T2

X-T5

 

So now we know where the problem is. In the date of production. Namely, my own !!! I need a tripod for my brain. That is where the bug is. I doubt any firmware update is available for that.

Anyways, it used to be half-press IS on in both AF-S and AF-C on the X-T10. I wonder why they changed it, I quite liked that. 

[Greybeard]

2 hours ago, George_P said:

Anyways, it used to be half-press IS on in both AF-S and AF-C on the X-T10. I wonder why they changed it, I quite liked that. 

X-T10 was before my time - I started with Fujifilm with the X-T2

[jerryy]

@George_P that is how it works on my X-T10 as well, but the lens has to have OIS and the OIS on the lens has to be turned on, otherwise one cannot select those menu setting options.

p.s. Uh, if you locate any of those “firmware” updates, please let me know! 🤣

[George_P]

Jerry, you need one too ? A youngster like you ? What is happening with this world.

@Greybeard, @jerryy   Thanks, guys. Cheers !