Color bleeding - a problem of lens or camera?

Trying to use Panasonic 100~300mm to shoot sunset (camera: Panasonic G9), however you can see that the sun flare "bleed" into the shadow of the nearby building. I never had this issue for my Nikon system. Attached two shot, one from Pany and one from Nikon D7100 with Tamron 18~400mm lens.
Is it a problem with the lens (not enough coating) or a problem with the camera (shallow dynamic range)?
Thanks!

Panasonic G9, with 100~300mm lens

Nikon D7100 + Tamron 18~400mm lens

Just to confirm, you don't have a filter on the lens? I would suspect a filter first.

Could be many things but doubt its a dynamic range issue as m43 sensors are normally excellent.

The shots look very different, the g9 one is over exposed compared to the Nikon shot, over exposure can cause this. The lens is not a pro level one, so may have optical issues . different atmospheric conditions could also be the guilty party.

According to the EXIF, they were:

#1 from G9: f/22, 1/2000", ISO200, -3ev

#2 from D7100: f/10, 1/6400", ISO400, -1ev

I think generally f/22 is not advisable to use on M43 (negative effect of diffraction would start to kick in from f/8~9 onward...). If could be equivalent to f/44 of FF (if my calculation, that I am not good at all, is not far off) whereas f/10 of APSC is f/14 eq to FF only...

Might try to use a larger aperture, say f/8, 1/8000", ISO100 etc to see the result?

nyfz50 wrote:

Trying to use Panasonic 100~300mm to shoot sunset (camera: Panasonic G9), however you can see that the sun flare "bleed" into the shadow of the nearby building. I never had this issue for my Nikon system. Attached two shot, one from Pany and one from Nikon D7100 with Tamron 18~400mm lens.
Is it a problem with the lens (not enough coating) or a problem with the camera (shallow dynamic range)?
Thanks!

Panasonic G9, with 100~300mm lens

Nikon D7100 + Tamron 18~400mm lens

To me the photos look quite different. In the first one the sun appears higher in the sky and brighter so there's  more contrast than the second one where the sun is softened by clouds. IMHO you'd need to shoot the same scene with both to compare.

Martian Flatcat wrote:

Just to confirm, you don't have a filter on the lens? I would suspect a filter first.

No I always remove any filter when shooting sun.

Adrian Harris wrote:

Could be many things but doubt its a dynamic range issue as m43 sensors are normally excellent.

The shots look very different, the g9 one is over exposed compared to the Nikon shot, over exposure can cause this. The lens is not a pro level one, so may have optical issues . different atmospheric conditions could also be the guilty party.

The exposure was already -3EV and the sky was already very dark. Can't go down further
I will try a normal aperture next time. f22 could be what caused it. The thing is that the shutter was already 1/2000 and there were really not too much option left.
I do noticed that for the Nikon shot the sky was a little cloudy but the Panasonic shot it was very clear. that could also makes difference.

Thanks!

alcelc wrote:

According to the EXIF, they were:

#1 from G9: f/22, 1/2000", ISO200, -3ev

#2 from D7100: f/10, 1/6400", ISO400, -1ev

I think generally f/22 is not advisable to use on M43 (negative effect of diffraction would start to kick in from f/8~9 onward...). If could be equivalent to f/44 of FF (if my calculation, that I am not good at all, is not far off) whereas f/10 of APSC is f/14 eq to FF only...

Might try to use a larger aperture, say f/8, 1/8000", ISO100 etc to see the result?

Good point. Never thought of aperture that could cause it. However the shutter was already 1/2000 and ISO was 200. Will try different aperture next time.

Adielle wrote:

Same problem as with GX8, just less pronounced. This problem disappears completely when using a raw image editor like PhotoLab or Lightroom to process the image.

hmm... what action do you take in lightroom, suppress hightlight? Thanks.

Adielle wrote:

nyfz50 wrote:

Adielle wrote:

Same problem as with GX8, just less pronounced. This problem disappears completely when using a raw image editor like PhotoLab or Lightroom to process the image.

hmm... what action do you take in lightroom, suppress hightlight? Thanks.

Nothing, it's just rendered correctly. Panasonic's JPEG conversion has a really serious problem with highlights around the sun turning into an ugly haze. With GX8 there's even ridiculous shades of green.

Good point. I never noticed this kind of issues with my Olympus camera. Let me try. Thanks!

nyfz50 wrote:

Adrian Harris wrote:

Could be many things but doubt its a dynamic range issue as m43 sensors are normally excellent.

The shots look very different, the g9 one is over exposed compared to the Nikon shot, over exposure can cause this. The lens is not a pro level one, so may have optical issues . different atmospheric conditions could also be the guilty party.

The exposure was already -3EV and the sky was already very dark. Can't go down further
I will try a normal aperture next time. f22 could be what caused it. The thing is that the shutter was already 1/2000 and there were really not too much option left.
I do noticed that for the Nikon shot the sky was a little cloudy but the Panasonic shot it was very clear. that could also makes difference.

Thanks!

Aaaarrgghhh, f22 is also part of the problem. M43 sized sensors are seriously into diffraction territory at f22.  Use a high quality ND filter to keep aperture below f11.

When I get a picture like the first one, it means I have not cleaned the lens for a long time - regardless of which camera or which lens.

Henry

BurnImage wrote:

As others have said diffraction is likely the main problem. I try and use no smaller than f8. I don’t bother with an ND filter normally, I just use electronic shutter to give access to faster shutter speeds instead.

Didn't realize that the electronic shutter goes 2 stop further than that of the mechanical shutter. That will be sufficient to bring down aperture number to f8. Thanks.

Henry Falkner wrote:

When I get a picture like the first one, it means I have not cleaned the lens for a long time - regardless of which camera or which lens.

Henry

I had it cleaned before use it. But the image did looks very "dirty". Maybe I need to use cleaning agent instead of just wiping it.