XT4 IBIS

Started 2 months ago | Discussions
topcat74 Forum Member • Posts: 50
XT4 IBIS

Hi all.

My image stabilisation only seems to come into effect when in continuous focusing mode if I switch to single mode the stabilisation seems to stop working.

I have it set to boost mode.

I have set stabilisation to "shooting only", not "continuous".

I am using the XF 56mm f1.2 Lens.

I can definitely see the green focusing box stabilise when in continuous focus mode and depress the focus button ( ael, set to back button focusing ) in single mode the green box does not seem to stabilise when focus depressed.

Any ideas?

 topcat74's gear list:topcat74's gear list
Nikon D850 Fujifilm X-T4 Fujifilm XF 14mm F2.8 R Fujifilm XF 23mm F1.4 R Fujifilm XF 56mm F1.2 R +5 more
Fujifilm XF 56mm F1.2 R APD
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SrMi
SrMi Senior Member • Posts: 1,329
Re: XT4 IBIS
3

topcat74 wrote:

Hi all.

My image stabilisation only seems to come into effect when in continuous focusing mode if I switch to single mode the stabilisation seems to stop working.

I have it set to boost mode.

I have set stabilisation to "shooting only", not "continuous".

I am using the XF 56mm f1.2 Lens.

I can definitely see the green focusing box stabilise when in continuous focus mode and depress the focus button ( ael, set to back button focusing ) in single mode the green box does not seem to stabilise when focus depressed.

Any ideas?

Works as intended.

From X-T4 manual:

IS Mode Shooting Only:

"Image stabilization enabled only when the shutter button is pressed halfway (focus mode C) or the shutter is released."

This means that in focus mode S, stabilization is enabled only when the shutter is fully pressed. In focus mode C, stabilization is enabled while focusing (half-press shutter or BBF).

OP topcat74 Forum Member • Posts: 50
Re: XT4 IBIS

Hi, thanks for the reply

I did read the manual and understood the settings but could not understand why some of my test pic's of a stationary subject, showed missed focus at low shutter speeds when compared with continuous focus, which gave more consistent results.

Thanks again

 topcat74's gear list:topcat74's gear list
Nikon D850 Fujifilm X-T4 Fujifilm XF 14mm F2.8 R Fujifilm XF 23mm F1.4 R Fujifilm XF 56mm F1.2 R +5 more
OP topcat74 Forum Member • Posts: 50
Re: XT4 IBIS

Just tried taking a Pic of subject ( central heating pressure dial ) at a distance of 12ft image is blurry consistently in single focus but in continuous they are all perfectly in focus - strange.

 topcat74's gear list:topcat74's gear list
Nikon D850 Fujifilm X-T4 Fujifilm XF 14mm F2.8 R Fujifilm XF 23mm F1.4 R Fujifilm XF 56mm F1.2 R +5 more
jhorse Veteran Member • Posts: 4,008
Re: XT4 IBIS
1

SrMi wrote:

topcat74 wrote:

Hi all.

My image stabilisation only seems to come into effect when in continuous focusing mode if I switch to single mode the stabilisation seems to stop working.

I have it set to boost mode.

I have set stabilisation to "shooting only", not "continuous".

I am using the XF 56mm f1.2 Lens.

I can definitely see the green focusing box stabilise when in continuous focus mode and depress the focus button ( ael, set to back button focusing ) in single mode the green box does not seem to stabilise when focus depressed.

Any ideas?

Works as intended.

From X-T4 manual:

IS Mode Shooting Only:

"Image stabilization enabled only when the shutter button is pressed halfway (focus mode C) or the shutter is released."

This means that in focus mode S, stabilization is enabled only when the shutter is fully pressed. In focus mode C, stabilization is enabled while focusing (half-press shutter or BBF).

Hi, I have spent some time trying to fathom Fuji's interpretation of stabilisation.  The last stabilisation system I had was Nikon and its VR lenses.  In Nikon, one half pressed the shutter button to initiate stabilisation. The focus mode was irrelevant. So, half press, pause, shoot. Works well.

In Fujiland, if I understand the IBIS system correctly (and that is open to debate), if the IS Mode is set to Shooting Only and the focus mode is set to 'C' (Continuous - P 146 of the manual) then stabilisation is applied only in continuous focus - not single focus. Bizarre.

So, my interpretation of the IS Mode is that to have any stabilisation in single focus, one must set the focus mode to 'S' and the IS Mode to Continuous. I was wary of doing this initially due to battery drain, but the new XT4 battery has good staying power, so I have set the IS mode to Continuous and I certainly see the stabilisation effect in the focus 'S' mode.

I think this is how it works, but if I am wrong, please blame the excellent New Zealand Sauvignon Blanc from Marlborough I have just opened!

-- hide signature --
 jhorse's gear list:jhorse's gear list
Fujifilm X-E3 Fujifilm X-T4 Fujifilm XF 18-55mm F2.8-4 R LM OIS Fujifilm XF 55-200mm F3.5-4.8 R LM OIS Fujifilm XF 27mm F2.8 +5 more
Fuji Maine Contributing Member • Posts: 931
Re: XT4 IBIS

As already stated, what you're experiencing is as designed. I'd recommend just having your Ibis setting always on rather than just when shooting for the vast majority of situations. The only time shooting only is really a benefit is when you may have the camera at your hip and quickly pull up and take a shot almost in one motion. In that situation, it prevents Ibis rebound that occurs when moving the camera quickly as it needs half a second to settle into place.

SrMi
SrMi Senior Member • Posts: 1,329
Re: XT4 IBIS

topcat74 wrote:

Hi, thanks for the reply

I did read the manual and understood the settings but could not understand why some of my test pic's of a stationary subject, showed missed focus at low shutter speeds when compared with continuous focus, which gave more consistent results.

Thanks again

Missed focus and stabilization are typically different issues. It is easy to differentiate when the focus is missed and when it is a stabilization issue.

I cannot guess why you get more consistent results with continuous mode. In single-focus mode, the focus is set the moment you half-press the shutter (or press AF-ON).

SrMi
SrMi Senior Member • Posts: 1,329
Re: XT4 IBIS
1

jhorse wrote:

SrMi wrote:

topcat74 wrote:

Hi all.

My image stabilisation only seems to come into effect when in continuous focusing mode if I switch to single mode the stabilisation seems to stop working.

I have it set to boost mode.

I have set stabilisation to "shooting only", not "continuous".

I am using the XF 56mm f1.2 Lens.

I can definitely see the green focusing box stabilise when in continuous focus mode and depress the focus button ( ael, set to back button focusing ) in single mode the green box does not seem to stabilise when focus depressed.

Any ideas?

Works as intended.

From X-T4 manual:

IS Mode Shooting Only:

"Image stabilization enabled only when the shutter button is pressed halfway (focus mode C) or the shutter is released."

This means that in focus mode S, stabilization is enabled only when the shutter is fully pressed. In focus mode C, stabilization is enabled while focusing (half-press shutter or BBF).

Hi, I have spent some time trying to fathom Fuji's interpretation of stabilisation. The last stabilisation system I had was Nikon and its VR lenses. In Nikon, one half pressed the shutter button to initiate stabilisation. The focus mode was irrelevant. So, half press, pause, shoot. Works well.

In Fujiland, if I understand the IBIS system correctly (and that is open to debate), if the IS Mode is set to Shooting Only and the focus mode is set to 'C' (Continuous - P 146 of the manual) then stabilisation is applied only in continuous focus - not single focus. Bizarre.

So, my interpretation of the IS Mode is that to have any stabilisation in single focus, one must set the focus mode to 'S' and the IS Mode to Continuous. I was wary of doing this initially due to battery drain, but the new XT4 battery has good staying power, so I have set the IS mode to Continuous and I certainly see the stabilisation effect in the focus 'S' mode.

I think this is how it works, but if I am wrong, please blame the excellent New Zealand Sauvignon Blanc from Marlborough I have just opened!

I do not want to criticize anything that is influenced by a good Sauvignon Blanc, but that is either not correct or I have misunderstood what you wrote.

There are two IS modes (Shooting Only and Continuous) and two focusing modes (single and continuous). Each focusing mode works with each IS mode. The only difference is the stability of the image in EVF/LCD.

In Continuous IS Mode, the image in EVF/LCD is always stabilized.

In Shooting Only IS Mode, the image in EVF/LCD is stabilized only while focusing is active and while the image is being taken.

I always use Continuous IS Mode, though, apparently, there are some advantages of using Shooting Only IS Mode.

DarnGoodPhotos Forum Pro • Posts: 10,124
Re: XT4 IBIS

SrMi wrote:

jhorse wrote:

SrMi wrote:

topcat74 wrote:

Hi all.

My image stabilisation only seems to come into effect when in continuous focusing mode if I switch to single mode the stabilisation seems to stop working.

I have it set to boost mode.

I have set stabilisation to "shooting only", not "continuous".

I am using the XF 56mm f1.2 Lens.

I can definitely see the green focusing box stabilise when in continuous focus mode and depress the focus button ( ael, set to back button focusing ) in single mode the green box does not seem to stabilise when focus depressed.

Any ideas?

Works as intended.

From X-T4 manual:

IS Mode Shooting Only:

"Image stabilization enabled only when the shutter button is pressed halfway (focus mode C) or the shutter is released."

This means that in focus mode S, stabilization is enabled only when the shutter is fully pressed. In focus mode C, stabilization is enabled while focusing (half-press shutter or BBF).

Hi, I have spent some time trying to fathom Fuji's interpretation of stabilisation. The last stabilisation system I had was Nikon and its VR lenses. In Nikon, one half pressed the shutter button to initiate stabilisation. The focus mode was irrelevant. So, half press, pause, shoot. Works well.

In Fujiland, if I understand the IBIS system correctly (and that is open to debate), if the IS Mode is set to Shooting Only and the focus mode is set to 'C' (Continuous - P 146 of the manual) then stabilisation is applied only in continuous focus - not single focus. Bizarre.

So, my interpretation of the IS Mode is that to have any stabilisation in single focus, one must set the focus mode to 'S' and the IS Mode to Continuous. I was wary of doing this initially due to battery drain, but the new XT4 battery has good staying power, so I have set the IS mode to Continuous and I certainly see the stabilisation effect in the focus 'S' mode.

I think this is how it works, but if I am wrong, please blame the excellent New Zealand Sauvignon Blanc from Marlborough I have just opened!

I do not want to criticize anything that is influenced by a good Sauvignon Blanc, but that is either not correct or I have misunderstood what you wrote.

There are two IS modes (Shooting Only and Continuous) and two focusing modes (single and continuous). Each focusing mode works with each IS mode. The only difference is the stability of the image in EVF/LCD.

In Continuous IS Mode, the image in EVF/LCD is always stabilized.

In Shooting Only IS Mode, the image in EVF/LCD is stabilized only while focusing is active and while the image is being taken.

I always use Continuous IS Mode, though, apparently, there are some advantages of using Shooting Only IS Mode.

With AF-S "OIS - Shooting", stabilization is applied when you also half press the shutter release.

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 DarnGoodPhotos's gear list:DarnGoodPhotos's gear list
Fujifilm X-Pro2 Fujifilm X-E3 Fujifilm XF 18mm F2 R Fujifilm XF 35mm F1.4 R Fujifilm XF 55-200mm F3.5-4.8 R LM OIS +4 more
OP topcat74 Forum Member • Posts: 50
Re: XT4 IBIS
1

Thanks very much Jhorse

Just tried changing to continuous and the IBIS is working in Single mode  -  you are correct

Keep on with the wine

 topcat74's gear list:topcat74's gear list
Nikon D850 Fujifilm X-T4 Fujifilm XF 14mm F2.8 R Fujifilm XF 23mm F1.4 R Fujifilm XF 56mm F1.2 R +5 more
SrMi
SrMi Senior Member • Posts: 1,329
Re: XT4 IBIS

DarnGoodPhotos wrote:

SrMi wrote:

jhorse wrote:

SrMi wrote:

topcat74 wrote:

Hi all.

My image stabilisation only seems to come into effect when in continuous focusing mode if I switch to single mode the stabilisation seems to stop working.

I have it set to boost mode.

I have set stabilisation to "shooting only", not "continuous".

I am using the XF 56mm f1.2 Lens.

I can definitely see the green focusing box stabilise when in continuous focus mode and depress the focus button ( ael, set to back button focusing ) in single mode the green box does not seem to stabilise when focus depressed.

Any ideas?

Works as intended.

From X-T4 manual:

IS Mode Shooting Only:

"Image stabilization enabled only when the shutter button is pressed halfway (focus mode C) or the shutter is released."

This means that in focus mode S, stabilization is enabled only when the shutter is fully pressed. In focus mode C, stabilization is enabled while focusing (half-press shutter or BBF).

Hi, I have spent some time trying to fathom Fuji's interpretation of stabilisation. The last stabilisation system I had was Nikon and its VR lenses. In Nikon, one half pressed the shutter button to initiate stabilisation. The focus mode was irrelevant. So, half press, pause, shoot. Works well.

In Fujiland, if I understand the IBIS system correctly (and that is open to debate), if the IS Mode is set to Shooting Only and the focus mode is set to 'C' (Continuous - P 146 of the manual) then stabilisation is applied only in continuous focus - not single focus. Bizarre.

So, my interpretation of the IS Mode is that to have any stabilisation in single focus, one must set the focus mode to 'S' and the IS Mode to Continuous. I was wary of doing this initially due to battery drain, but the new XT4 battery has good staying power, so I have set the IS mode to Continuous and I certainly see the stabilisation effect in the focus 'S' mode.

I think this is how it works, but if I am wrong, please blame the excellent New Zealand Sauvignon Blanc from Marlborough I have just opened!

I do not want to criticize anything that is influenced by a good Sauvignon Blanc, but that is either not correct or I have misunderstood what you wrote.

There are two IS modes (Shooting Only and Continuous) and two focusing modes (single and continuous). Each focusing mode works with each IS mode. The only difference is the stability of the image in EVF/LCD.

In Continuous IS Mode, the image in EVF/LCD is always stabilized.

In Shooting Only IS Mode, the image in EVF/LCD is stabilized only while focusing is active and while the image is being taken.

I always use Continuous IS Mode, though, apparently, there are some advantages of using Shooting Only IS Mode.

With AF-S "OIS - Shooting", stabilization is applied when you also half press the shutter release.

That is not what happens on my Fuji X-T4 (at long focal lengths, I see the image in EVF shaking with half-press), not per manual, and not per Rico Pfirstinger's Fuji Secrets book.

SrMi
SrMi Senior Member • Posts: 1,329
Re: XT4 IBIS

topcat74 wrote:

Thanks very much Jhorse

Just tried changing to continuous and the IBIS is working in Single mode - you are correct

Keep on with the wine

How did you test that IBIS is working or not?

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