Panny G9 questions: I.S. and exposure weight

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.