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Panny G9 questions: I.S. and exposure weight

Started Dec 29, 2021 | Questions
scphoto
scphoto Senior Member • Posts: 2,094
Panny G9 questions: I.S. and exposure weight

I have two questions regarding the Panny G9:

1. When I am shooting in animal/bird/human detect mode, if I have exposure set to "center weighted", is the center weighted point the center of the image ... OR ... is the center weighted area the focus point? Prior to animal/bird/human detect mode being available, I typically put the subject in the center, half pressed the shutter button (locking exposure & focus), recompose and then fully press the shutter button to take the shot. Since I started using animal/bird detect for wildlife, I've been using the "multiple" exposure mode. However, I prefer to be in control of what I want exposed properly and not turn that task over to the camera's firmware.

2. When I use the G9 with the PL100-400, can I have sensor image stabilization ON, but have the lens stabilization off? When I have the lens mounted on the camera and image stabilization is ON in the camera menu ... AND ... the lens switch is set to stabilization, I see an icon on my LCD display that says "Dual 2". But when I turn it off on the lens, the icon changes to OFF. To me that means both in body and in lens are OFF because I turned it off on the lens only. (One may ask why I want to do this? Good queston. When shooting moving wildlife (e.g., flying birds) I use a fast shutter speed (1/2500 sec) with stabilization OFF because I'm under the impression that IOS interferes with getting sharp focus. However, maybe there's an alternative to everything ON or everything OFF. I'd like to experiment with this, if the two can be set independently with the G9 and the PL100-400.

Thanks,

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- Simon

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windmillgolfer
windmillgolfer Forum Pro • Posts: 17,782
Re: Panny G9 questions: I.S. and exposure weight

scphoto wrote:

I have two questions regarding the Panny G9:

1. When I am shooting in animal/bird/human detect mode, if I have exposure set to "center weighted", is the center weighted point the center of the image ... OR ... is the center weighted area the focus point? Prior to animal/bird/human detect mode being available, I typically put the subject in the center, half pressed the shutter button (locking exposure & focus), recompose and then fully press the shutter button to take the shot. Since I started using animal/bird detect for wildlife, I've been using the "multiple" exposure mode. However, I prefer to be in control of what I want exposed properly and not turn that task over to the camera's firmware.

Good question, not Sue of the answer.

2. When I use the G9 with the PL100-400, can I have sensor image stabilization ON, but have the lens stabilization off? When I have the lens mounted on the camera and image stabilization is ON in the camera menu ... AND ... the lens switch is set to stabilization, I see an icon on my LCD display that says "Dual 2". But when I turn it off on the lens, the icon changes to OFF. To me that means both in body and in lens are OFF because I turned it off on the lens only. (One may ask why I want to do this? Good queston. When shooting moving wildlife (e.g., flying birds) I use a fast shutter speed (1/2500 sec) with stabilization OFF because I'm under the impression that IOS interferes with getting sharp focus. However, maybe there's an alternative to everything ON or everything OFF. I'd like to experiment with this, if the two can be set independently with the G9 and the PL100-400.

No, Dual IS means both camera and lens ISS working together. So, if you switch off the lens’s IS then Dual IS cannot operate but the camera’s IBIS continues to operate. Update - not now sure this is correct.

I use Dual IS but still go for shutter speed of 1/2000 or more, if possible. The IS is compensating for your movement not the subjects.

Thanks,

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alcelc
alcelc Forum Pro • Posts: 19,003
Re: Panny G9 questions: I.S. and exposure weight

scphoto wrote:

I have two questions regarding the Panny G9:

1. When I am shooting in animal/bird/human detect mode, if I have exposure set to "center weighted", is the center weighted point the center of the image ... OR ... is the center weighted area the focus point? Prior to animal/bird/human detect mode being available, I typically put the subject in the center, half pressed the shutter button (locking exposure & focus), recompose and then fully press the shutter button to take the shot. Since I started using animal/bird detect for wildlife, I've been using the "multiple" exposure mode. However, I prefer to be in control of what I want exposed properly and not turn that task over to the camera's firmware.

Not a G9 user. Have interest to know this also.

2. When I use the G9 with the PL100-400, can I have sensor image stabilization ON, but have the lens stabilization off? When I have the lens mounted on the camera and image stabilization is ON in the camera menu ... AND ... the lens switch is set to stabilization, I see an icon on my LCD display that says "Dual 2". But when I turn it off on the lens, the icon changes to OFF. To me that means both in body and in lens are OFF because I turned it off on the lens only.

Yes you're right. Panny's IS policy is either the best IS or no IS. If your lens is DUAL IS 2 compatible, you will have DUAL IS 2 or nothing. If you mount a non DUAL IS lens then will be lens IS only. iBIS is for non IS lens only.

Panny does not give any option to select IBIS, Lens IS or DUAL IS 2. It is applied to every Panny camera.

(One may ask why I want to do this? Good queston. When shooting moving wildlife (e.g., flying birds) I use a fast shutter speed (1/2500 sec) with stabilization OFF because I'm under the impression that IOS interferes with getting sharp focus.

There had been reports on this (not on G9), but it is very rare.

However, maybe there's an alternative to everything ON or everything OFF. I'd like to experiment with this, if the two can be set independently with the G9 and the PL100-400.

No for Panny.

Thanks,

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- Simon

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Albert
** Please forgive my typo error.
** Please feel free to download my image and edit it as you like **

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scphoto
OP scphoto Senior Member • Posts: 2,094
Re: Panny G9 questions: I.S. and exposure weight

scphoto wrote:

I have two questions regarding the Panny G9:

1. When I am shooting in animal/bird/human detect mode, if I have exposure set to "center weighted", is the center weighted point the center of the image ... OR ... is the center weighted area the focus point? Prior to animal/bird/human detect mode being available, I typically put the subject in the center, half pressed the shutter button (locking exposure & focus), recompose and then fully press the shutter button to take the shot. Since I started using animal/bird detect for wildlife, I've been using the "multiple" exposure mode. However, I prefer to be in control of what I want exposed properly and not turn that task over to the camera's firmware.

2. When I use the G9 with the PL100-400, can I have sensor image stabilization ON, but have the lens stabilization off? When I have the lens mounted on the camera and image stabilization is ON in the camera menu ... AND ... the lens switch is set to stabilization, I see an icon on my LCD display that says "Dual 2". But when I turn it off on the lens, the icon changes to OFF. To me that means both in body and in lens are OFF because I turned it off on the lens only. (One may ask why I want to do this? Good queston. When shooting moving wildlife (e.g., flying birds) I use a fast shutter speed (1/2500 sec) with stabilization OFF because I'm under the impression that IOS interferes with getting sharp focus. However, maybe there's an alternative to everything ON or everything OFF. I'd like to experiment with this, if the two can be set independently with the G9 and the PL100-400.

Thanks,

I only got two responses to my questions (see above) regarding what "center weighted" means when my Panny G9 camera is picking the focus area as in human/animal detect mode ... and ... the operation of of IBIS when OIS is turned off on the PL 100-400mm lens.

Thanks to alcelc and windmillgolfer for responding but their answers seem to be either unsure or in conflict.

Anyone else want to give these two questions a try?

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- Simon

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alcelc
alcelc Forum Pro • Posts: 19,003
Re: Panny G9 questions: I.S. and exposure weight

scphoto wrote:

scphoto wrote:

I have two questions regarding the Panny G9:

1. When I am shooting in animal/bird/human detect mode, if I have exposure set to "center weighted", is the center weighted point the center of the image ... OR ... is the center weighted area the focus point? Prior to animal/bird/human detect mode being available, I typically put the subject in the center, half pressed the shutter button (locking exposure & focus), recompose and then fully press the shutter button to take the shot. Since I started using animal/bird detect for wildlife, I've been using the "multiple" exposure mode. However, I prefer to be in control of what I want exposed properly and not turn that task over to the camera's firmware.

2. When I use the G9 with the PL100-400, can I have sensor image stabilization ON, but have the lens stabilization off? When I have the lens mounted on the camera and image stabilization is ON in the camera menu ... AND ... the lens switch is set to stabilization, I see an icon on my LCD display that says "Dual 2". But when I turn it off on the lens, the icon changes to OFF. To me that means both in body and in lens are OFF because I turned it off on the lens only. (One may ask why I want to do this? Good queston. When shooting moving wildlife (e.g., flying birds) I use a fast shutter speed (1/2500 sec) with stabilization OFF because I'm under the impression that IOS interferes with getting sharp focus. However, maybe there's an alternative to everything ON or everything OFF. I'd like to experiment with this, if the two can be set independently with the G9 and the PL100-400.

Thanks,

I only got two responses to my questions (see above) regarding what "center weighted" means when my Panny G9 camera is picking the focus area as in human/animal detect mode ... and ... the operation of of IBIS when OIS is turned off on the PL 100-400mm lens.

Thanks to alcelc and windmillgolfer for responding but their answers seem to be either unsure or in conflict.

Anyone else want to give these two questions a try?

Dear friend, the IS policy of Panny is simply and clear.

For your combo, DUAL IS 2 or nothing. You don't have an option to choose IBIS, DUAL IS 2 or Lens IS only.

You have the gear, tried it to find out if you don't believe me. Simple as that.

Regarding the metering, I don't use Center weight nor spot myself, and as not a G9 owner, not wish to guess it.

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Albert
** Please forgive my typo error.
** Please feel free to download my image and edit it as you like **

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DaveTheAffable Contributing Member • Posts: 565
Re: Panny G9 questions: I.S. and exposure weight

In regards to metering. The focal point is independent of the metering decisions the camera is making. If you set the auto focus for single point for example, and then used the joystick to move the focal point to a flower in the foreground of a landscape, the center weighted metering would still be center weighted, or full screen matrix if you had selected it. If you adjust the size of the focus area larger, or smaller, you are not changing the “size“ of the area that gets metered anywhere on the screen.

I hope this helps!

****************

With some experimentation, I can confirm that this is not the case with “spot” focusing, or focus tracking.

I also went back and reviewed this video. https://www.youtube.com/watch?v=qkpkI7jWUW8

I now have appropriate egg on my face. Lol. (Tested with my GH5)

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Dave

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Aberaeron Forum Pro • Posts: 10,184
Re: Panny G9 questions: I.S. and exposure weight

I disagree with the above comments. The 100-400 has a ‘Power OIS' on-off switch, which can switch the lens stabilisation off independently from the in-body stabilisation. So it can either use the combination or in-body or completely off. What I’m not sure about is whether the off in-body also switches the lens OIS off. I suspect it does. But as long as that is ‘on’, there is a choice of both combined or in-body alone.

The only compatible lens I own is the tiny 12-32 with Mega OIS with no switch on its body. So the switch in the main menu controls both on my GX80.

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

DaveTheAffable Contributing Member • Posts: 565
Re: Panny G9 questions: I.S. and exposure weight

Aberaeron wrote:

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

I went back and re-edited my earlier post, and have confirmed that on the G9 focus tracking does attempt to adjust the exposure around the focal point when spot focus has been selected, but not center weighted.

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Dave

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alcelc
alcelc Forum Pro • Posts: 19,003
Re: Panny G9 questions: I.S. and exposure weight
4

Aberaeron wrote:

I disagree with the above comments. The 100-400 has a ‘Power OIS' on-off switch, which can switch the lens stabilisation off independently from the in-body stabilisation. So it can either use the combination or in-body or completely off. What I’m not sure about is whether the off in-body also switches the lens OIS off. I suspect it does. But as long as that is ‘on’, there is a choice of both combined or in-body alone.

You are wrong.

Put on a lens having IS switch, you should find it out.😀

The only compatible lens I own is the tiny 12-32 with Mega OIS with no switch on its body. So the switch in the main menu controls both on my GX80.

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

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Albert
** Please forgive my typo error.
** Please feel free to download my image and edit it as you like **

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Gnine Senior Member • Posts: 4,108
Re: Panny G9 questions: I.S. and exposure weight

scphoto wrote:

scphoto wrote:

I have two questions regarding the Panny G9:

1. When I am shooting in animal/bird/human detect mode, if I have exposure set to "center weighted", is the center weighted point the center of the image ... OR ... is the center weighted area the focus point? Prior to animal/bird/human detect mode being available, I typically put the subject in the center, half pressed the shutter button (locking exposure & focus), recompose and then fully press the shutter button to take the shot. Since I started using animal/bird detect for wildlife, I've been using the "multiple" exposure mode. However, I prefer to be in control of what I want exposed properly and not turn that task over to the camera's firmware.

2. When I use the G9 with the PL100-400, can I have sensor image stabilization ON, but have the lens stabilization off? When I have the lens mounted on the camera and image stabilization is ON in the camera menu ... AND ... the lens switch is set to stabilization, I see an icon on my LCD display that says "Dual 2". But when I turn it off on the lens, the icon changes to OFF. To me that means both in body and in lens are OFF because I turned it off on the lens only. (One may ask why I want to do this? Good queston. When shooting moving wildlife (e.g., flying birds) I use a fast shutter speed (1/2500 sec) with stabilization OFF because I'm under the impression that IOS interferes with getting sharp focus. However, maybe there's an alternative to everything ON or everything OFF. I'd like to experiment with this, if the two can be set independently with the G9 and the PL100-400.

Thanks,

I only got two responses to my questions (see above) regarding what "center weighted" means when my Panny G9 camera is picking the focus area as in human/animal detect mode ... and ... the operation of of IBIS when OIS is turned off on the PL 100-400mm lens.

Thanks to alcelc and windmillgolfer for responding but their answers seem to be either unsure or in conflict.

Anyone else want to give these two questions a try?

I'm a G9, Aperture mode, center weighted average metering user, & the metering does seem to follow the focus area around, from what I've observed. Not going to make definitive, conclusive, set in stone statements, just what I've observed. Center weighted average is my favorite, even on other brands. I just seem to get along with it best.

Edit -it's not hard to test for yourself, pop the camera in A mode, hold the camera stationary, half press the shutter, then let go to get the meter active, move the AF point around the screen/EVF & watch the shutter speed changing.

Edit 2 -it also seems dependent on which AF point style you choose. The metering changes with pinpoint AF point selected, but not one area even with the smallest focus box. I almost always use pinpoint, that's why I noticed it

Gnine Senior Member • Posts: 4,108
Re: Panny G9 questions: I.S. and exposure weight

DaveTheAffable wrote:

Aberaeron wrote:

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

I went back and re-edited my earlier post, and have confirmed that on the G9 focus tracking does attempt to adjust the exposure around the focal point when spot focus has been selected, but not center weighted.

I've found the opposite. See my previous reply

Aberaeron Forum Pro • Posts: 10,184
Re: Panny G9 questions: I.S. and exposure weight

alcelc wrote:

Aberaeron wrote:

I disagree with the above comments. The 100-400 has a ‘Power OIS' on-off switch, which can switch the lens stabilisation off independently from the in-body stabilisation. So it can either use the combination or in-body or completely off. What I’m not sure about is whether the off in-body also switches the lens OIS off. I suspect it does. But as long as that is ‘on’, there is a choice of both combined or in-body alone.

You are wrong.

Put on a lens having IS switch, you should find it out.😀

The only compatible lens I own is the tiny 12-32 with Mega OIS with no switch on its body. So the switch in the main menu controls both on my GX80.

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

So you are claiming that switching the lens OIS switch ‘off’ also switches the in-body stabilisation ‘off’ even though it is switched ‘on’ in the main menu? The mind boggles as to why they would do that. If they do. I can’t test for myself because I don’t believe that I have any dual-IS compatible lenses apart from the 12-32, which has no switch on its body and hardly needs it anyway.

If they do this, it's a bit of a disappointment. It is something they could easily address in software I should think, although perhaps it doesn’t really matter, come to think of it.

DaveTheAffable Contributing Member • Posts: 565
Re: Panny G9 questions: I.S. and exposure weight

Gnine wrote:

DaveTheAffable wrote:

Aberaeron wrote:

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

I went back and re-edited my earlier post, and have confirmed that on the G9 focus tracking does attempt to adjust the exposure around the focal point when spot focus has been selected, but not center weighted.

I've found the opposite. See my previous reply

Yea… I just played some more with my GH5 and got mixed results.  I think the best thing to do moving forward…

….is for me to be quiet on the subject for the time being.

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Dave

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alcelc
alcelc Forum Pro • Posts: 19,003
Re: Panny G9 questions: I.S. and exposure weight
1

Aberaeron wrote:

alcelc wrote:

Aberaeron wrote:

I disagree with the above comments. The 100-400 has a ‘Power OIS' on-off switch, which can switch the lens stabilisation off independently from the in-body stabilisation. So it can either use the combination or in-body or completely off. What I’m not sure about is whether the off in-body also switches the lens OIS off. I suspect it does. But as long as that is ‘on’, there is a choice of both combined or in-body alone.

You are wrong.

Put on a lens having IS switch, you should find it out.😀

The only compatible lens I own is the tiny 12-32 with Mega OIS with no switch on its body. So the switch in the main menu controls both on my GX80.

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

So you are claiming that switching the lens OIS switch ‘off’ also switches the in-body stabilisation ‘off’ even though it is switched ‘on’ in the main menu? The mind boggles as to why they would do that. If they do. I can’t test for myself because I don’t believe that I have any dual-IS compatible lenses apart from the 12-32, which has no switch on its body and hardly needs it anyway.

Do you have any other lens having an IS switch?

I had just reconfirmed on G85 ( DUAL IS 2 compatible body) and GX85 (DUAL IS compatible body) with:

  1. 12~32 (DUAL IS 2 compatible), no IS switch;
  2. 14~140 f/3.5-5.6 mk-I (DUAL IS 2 compatible), has IS switch;
  3. 12~35 f/2.8 mk-I ( DUAL IS compatible), has IS switch;

As said with 12~32, IS Menu has 3 options (two IS & IS OFF).

But when the other 2 lenses were mounted, the IS Menu Option reduced to two only. The IS OFF is not shown. Is is so controlled by the hard IS switch on lens.

If you have non DUAL IS compatible IS lens, or non IS lens, you might find out what happens to the IS options of GX85.

The following is what I have found:

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Albert
** Please forgive my typo error.
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Aberaeron Forum Pro • Posts: 10,184
Re: Panny G9 questions: I.S. and exposure weight
1

alcelc wrote:

Aberaeron wrote:

alcelc wrote:

Aberaeron wrote:

I disagree with the above comments. The 100-400 has a ‘Power OIS' on-off switch, which can switch the lens stabilisation off independently from the in-body stabilisation. So it can either use the combination or in-body or completely off. What I’m not sure about is whether the off in-body also switches the lens OIS off. I suspect it does. But as long as that is ‘on’, there is a choice of both combined or in-body alone.

You are wrong.

Put on a lens having IS switch, you should find it out.😀

The only compatible lens I own is the tiny 12-32 with Mega OIS with no switch on its body. So the switch in the main menu controls both on my GX80.

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

So you are claiming that switching the lens OIS switch ‘off’ also switches the in-body stabilisation ‘off’ even though it is switched ‘on’ in the main menu? The mind boggles as to why they would do that. If they do. I can’t test for myself because I don’t believe that I have any dual-IS compatible lenses apart from the 12-32, which has no switch on its body and hardly needs it anyway.

Do you have any other lens having an IS switch?

I had just reconfirmed on G85 ( DUAL IS 2 compatible body) and GX85 (DUAL IS compatible body) with:

  1. 12~32 (DUAL IS 2 compatible), no IS switch;
  2. 14~140 f/3.5-5.6 mk-I (DUAL IS 2 compatible), has IS switch;
  3. 12~35 f/2.8 mk-I ( DUAL IS compatible), has IS switch;

As said with 12~32, IS Menu has 3 options (two IS & IS OFF).

But when the other 2 lenses were mounted, the IS Menu Option reduced to two only. The IS OFF is not shown. Is is so controlled by the hard IS switch on lens.

If you have non DUAL IS compatible IS lens, or non IS lens, you might find out what happens to the IS options of GX85.

The following is what I have found:

You are correct and I was wrong. I seldom have the 14-140 on the GX80, which is the only Panasonic I have with IBIS. Swapped the 14-140 to the GX80 just now. When I switch the lens switch OFF the the little symbol turns red in the screens to warn that all IS is disabled. Every day is a learning day and these forums help those that wish to learn, learn a whole lot even if they thought they already knew it, if they are willing to learn. I love it.

Gnine Senior Member • Posts: 4,108
Re: Panny G9 questions: I.S. and exposure weight
1

DaveTheAffable wrote:

Gnine wrote:

DaveTheAffable wrote:

Aberaeron wrote:

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

I went back and re-edited my earlier post, and have confirmed that on the G9 focus tracking does attempt to adjust the exposure around the focal point when spot focus has been selected, but not center weighted.

I've found the opposite. See my previous reply

Yea… I just played some more with my GH5 and got mixed results. I think the best thing to do moving forward…

….is for me to be quiet on the subject for the time being.

Ha ha. No, not at all. The more heads the better. I just discovered that "it depends"

alcelc
alcelc Forum Pro • Posts: 19,003
Re: Panny G9 questions: I.S. and exposure weight

Happy shooting.

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Albert
** Please forgive my typo error.
** Please feel free to download my image and edit it as you like **

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Gnine Senior Member • Posts: 4,108
Re: Panny G9 questions: I.S. and exposure weight
1

Gnine wrote:

DaveTheAffable wrote:

Gnine wrote:

DaveTheAffable wrote:

Aberaeron wrote:

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

I went back and re-edited my earlier post, and have confirmed that on the G9 focus tracking does attempt to adjust the exposure around the focal point when spot focus has been selected, but not center weighted.

I've found the opposite. See my previous reply

Yea… I just played some more with my GH5 and got mixed results. I think the best thing to do moving forward…

….is for me to be quiet on the subject for the time being.

Ha ha. No, not at all. The more heads the better. I just discovered that "it depends"

Well, a bit more experimenting and some more discoveries. I popped the camera in manual mode, single area AF point, & if the light level changes are large enough, then yes, it (the metering) does follow the AF point. What I surmise is happening, is that in pinpoint mode, the area sampled is much smaller, thus giving a greater apparent change & affecting the metering. Single area covers a greater area, and exposure is averaged out a bit more, having a less direct impact on the metering. Just guessing mind you. It shouldn't be a huge deal either way, as what you see is what you get through the EVF, and you should be able to adjust the exposure comp to your satisfaction based on the Zebras/histogram etc

evetsf Senior Member • Posts: 1,707
Re: Panny G9 questions: I.S. and exposure weight

Aberaeron wrote:

I disagree with the above comments. The 100-400 has a ‘Power OIS' on-off switch, which can switch the lens stabilisation off independently from the in-body stabilisation. So it can either use the combination or in-body or completely off. What I’m not sure about is whether the off in-body also switches the lens OIS off. I suspect it does. But as long as that is ‘on’, there is a choice of both combined or in-body alone.

The only compatible lens I own is the tiny 12-32 with Mega OIS with no switch on its body. So the switch in the main menu controls both on my GX80.

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

Re: IS on the G9: it is all or nothing, even with a lens that has a 'Power OIS' switch. My PL 50-200 has such a switch, and if I turn it off, all IS functionality turns off as well. It can also be controlled by the in-camera settings, but the physical switch overrides these.

However, for the OP: those in-camera settings do have three options: Off, On, and Panning. That last only compensates for vertical movement, assuming that horizontal movement is deliberate as you try to follow your subject. You might want to experiment with this and see which of the two "On" settings works best for you.

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scphoto
OP scphoto Senior Member • Posts: 2,094
I.S. question answered in detail by alcelc ... thanks!

alcelc wrote:

Aberaeron wrote:

alcelc wrote:

Aberaeron wrote:

I disagree with the above comments. The 100-400 has a ‘Power OIS' on-off switch, which can switch the lens stabilisation off independently from the in-body stabilisation. So it can either use the combination or in-body or completely off. What I’m not sure about is whether the off in-body also switches the lens OIS off. I suspect it does. But as long as that is ‘on’, there is a choice of both combined or in-body alone.

You are wrong.

Put on a lens having IS switch, you should find it out.😀

The only compatible lens I own is the tiny 12-32 with Mega OIS with no switch on its body. So the switch in the main menu controls both on my GX80.

As to centre weighted, not sure I’d choose to use it for birds in flight unless they were very low flying with a dark background. It is not ‘spot metering’ and I think it might be advantageous to link the metering point to the focus point if your camera allows this. This can be done on Olympus cameras but can’t say I’ve noticed it on my Panasonics, but mine are not the latest models.

So you are claiming that switching the lens OIS switch ‘off’ also switches the in-body stabilisation ‘off’ even though it is switched ‘on’ in the main menu? The mind boggles as to why they would do that. If they do. I can’t test for myself because I don’t believe that I have any dual-IS compatible lenses apart from the 12-32, which has no switch on its body and hardly needs it anyway.

Do you have any other lens having an IS switch?

I had just reconfirmed on G85 ( DUAL IS 2 compatible body) and GX85 (DUAL IS compatible body) with:

  1. 12~32 (DUAL IS 2 compatible), no IS switch;
  2. 14~140 f/3.5-5.6 mk-I (DUAL IS 2 compatible), has IS switch;
  3. 12~35 f/2.8 mk-I ( DUAL IS compatible), has IS switch;

As said with 12~32, IS Menu has 3 options (two IS & IS OFF).

But when the other 2 lenses were mounted, the IS Menu Option reduced to two only. The IS OFF is not shown. Is is so controlled by the hard IS switch on lens.

If you have non DUAL IS compatible IS lens, or non IS lens, you might find out what happens to the IS options of GX85.

The following is what I have found:

Albert -

Thanks for your detailed analysis and description of the I.S. options on Panny bodies + lenses. Until you posted, I didn't realized that my 14-140mm had a OIS switch. Since I typically use it for everyday shooting (i.e., not at fast shutter speeds to stop motion), I like having the dual IS and never thought to turn it off.

I only turn I.S. off when I'm shooting at fast shutter speeds with my PL100-400 for wildlife (mostly birds). I was under the impression (misimpression?) that I.S. on interfered with getting sharp focus on moving subjects. I'll experiment with leaving it on. I afraid that whatever experimenting I do, any conclusion will be very subjective. When shooting still subjects it's relatively easy to test different configurations for sharpness, but with wildlife each shot or sequence (in burst mode) is unique.

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- Simon

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