IBIS and OIS

[londond]

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When an OIS lens is mounted to an SL3, does the stabilisation of both work? Am looking at the 24-90 and the stabilisation for me is one factor that offsets the size/weight.  However if there is no dual stabilisation that would be a factor the favours the smaller/unstabilised 28-70 alternatives.

Apologies if this has been covered on a prior post missed by my search.  I saw something elsewhere which suggested the SLs do not support dual stabilisation but wanted to check with the more exert LUF community. 

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[Photoworks]

SL cameras have only one option, and that is ON and OFF

the SL2 and SL3 manage stabilization interactively between the camera and lens; the camera sensors activate different parts.

In short, you never know what is active.

Adding a lens with OIS helps to do longer night handheld exposures. I was able to hold 1sec exposure with 24-90 for tack-sharp images

When setting the camera on the tripod, the camera will deactivate some stabilization functions.

[jaapv]

Dual stabilisation works as follows - For long focal lengths it will prefer OIS, for shorter focal lengths IBIS. If dual OIS is selected (which is automatic on SL cameras) the camera IBIS will add rotational stabilisation to the OIS.

[SrMi]

29 minutes ago, jaapv said:

Dual stabilisation works as follows - For long focal lengths it will prefer OIS, for shorter focal lengths IBIS. If dual OIS is selected (which is automatic on SL cameras) the camera IBIS will add rotational stabilisation to the OIS.

Per the Leica Rep, SL cameras do not have dual OIS. Do you have a source that confirms dual IS on SL cameras (IBIS and OIS working together)?

 

 

[jaapv]

Yes - this is the explanation given by Panasonic, who use the same basic system, however Pana has a menu setting for lens vs vs dual.

[SrMi]

2 minutes ago, jaapv said:

Yes - this is the explanation given by Panasonic, who use the same basic system, however Pana has a menu setting for lens vs vs dual.

Yes, Panasonic does it, but it does not mean Leica does it. There is no information confirming dual IS availability in Leica cameras.

[Jeff S]

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Nick Rains says that, using the SL 70-200 on the SL3, IBIS works until 90mm, beyond which OIS takes over, with some overlap.  See about 2:30 mark…

Jeff

[jaapv]

16 minutes ago, SrMi said:

Yes, Panasonic does it, but it does not mean Leica does it. There is no information confirming dual IS availability in Leica cameras.

Once again, a rep has it wrong, apparently. However it has no switch in the menu like Panasonic it seems. 

[SrMi]

 

6 minutes ago, Jeff S said:

Nick Rains says that, using the SL 70-200 on the SL3, IBIS works until 90mm, beyond which OIS takes over, with some overlap.  See about 2:30 mark…

Jeff

So, no Dual IS is as @jaapv claimed.

[jaapv]

That IS dual IS - read my post please. Camera at shorter lengths and lens at longer. 

[SrMi]

1 minute ago, jaapv said:

That IS dual IS - read my post please. Camera at shorter lengths and lens at longer. 

Dual IS is using IBIS together with OIS (combined), not switching between different types of IS systems. At least, that is how Olympus and Panasonic define it within m43 cameras.

You mentioned that Panasonic uses rotational correction with IBIS and OIS for longer focal lengths. Note that Dual IS does not work if you mix lens and body manufacturers within the m43 system.

[jaapv]

You are misinformed. OIS does not work optimally with short focal lengths and IBIS is not functional with long focal lengths, hence the combination of both. The inclusion of rotational correction makes it 5-axis stabilization. MTF is another matter. For one thing the sensor because of the smaller size has more freedom of movement. 

[Photoworks]

6 minutes ago, SrMi said:

 

So, no Dual IS is as @jaapv claimed.

Leica is not specific when they use what!

What he just said is inconsistent with the comparison test of 24-90 and 24-70 lenses.
and why would you have OIS in the 24-90 when the camera never uses it?  I know it came out with the SL, but you can notice the difference just in the viewfinder, the OIS is more stable for framing

[jaapv]

That is something different EVF stabilizer is even a separate function switch on some Sigma lenses. 

[Photoworks]

1 minute ago, jaapv said:

That is something different EVF stabilizer is even a separate function switch on some Sigma lenses. 

are we still talking about SL3? Because there is a difference between the two lenses

[SrMi]

3 minutes ago, jaapv said:

You are misinformed. OIS does not work optimally with short focal lengths and IBIS is not functional with long focal lengths, hence the combination of both. The inclusion of rotational correction makes it 5-axis stabilization. MTF is another matter. For one thing the sensor because of the smaller size has more freedom of movement. 

I wrote this, and the post I referenced said: OIS for longer focal lengths and IBIS for shorter. I claim Leica IBIS does not use rotational corrections when OIS is active like Panasonic does. You claim Leica uses rotational IBIS correction with OIS but have not shared any facts to confirm that belief. Is that correct?

[SrMi]

4 minutes ago, jaapv said:

That is something different EVF stabilizer is even a separate function switch on some Sigma lenses. 

EVF stabilizer is something different. Panasonic and Olympus refer to Dual IS as improving stabilization because OIS and IBIS work in conjunction (IBIS helps OIS).

[jaapv]

So you refuse to read my post or watch the video - Bless 😇

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[jaapv]

46 minutes ago, SrMi said:

I wrote this, and the post I referenced said: OIS for longer focal lengths and IBIS for shorter. I claim Leica IBIS does not use rotational corrections when OIS is active like Panasonic does. You claim Leica uses rotational IBIS correction with OIS but have not shared any facts to confirm that belief. Is that correct?

Five axis is indeed not certain but it would be quite illogical to take it out of the system they acquired from Panasonic. 

[SrMi]

3 minutes ago, jaapv said:

So you refuse to read my post or watch the video - Bless 😇

I agree with video, but am confused with your posts as you claim different things.

Maybe we disagree because we differ in the definition of Dual IS. As I understand your posts, you claim Dual IS is when either OIS or IBIS is used. I wrote that Dual or Sync IS is when IBIS is helping OIS. Is that correct?