Blending of clear blue sky  

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JVFotografie
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Blending of clear blue sky

by JVFotografie » Tue Sep 02, 2014 9:19 am

Hi

I have trouble with a few panorama's that were shot with clear blue skies. See the example I added. I have shot them with a 5 stops bracket with one full stop apart.

After stitching (the dng files that stitch normally) I get these color differences in the sky like in the example I added.

How do I solve this?
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klausesser
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Re: Blending of clear blue sky

by klausesser » Wed Sep 03, 2014 7:39 pm

JVFotografie wrote:Hi

I have trouble with a few panorama's that were shot with clear blue skies. See the example I added. I have shot them with a 5 stops bracket with one full stop apart.

After stitching (the dng files that stitch normally) I get these color differences in the sky like in the example I added.

How do I solve this?



Did you try the color correction? Usually it equalizes such issues. Try the anchors, try several references.

Did you use any automatic when you did the shoot? WB, ISO, Aperture or whatever?

How did you process the bracketed shots? Inside APG or external prior to stitching?

Did you use a somewhat wide open aperture?

Klaus

basically: providing some more informations would be very clever . . . ;) :cool:

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Re: Blending of clear blue sky

by JVFotografie » Thu Sep 04, 2014 7:04 am

Thanks for your feedback Klaus.

It looks like I shot aperture priority and white balance automatic. It was a pretty spectacular morning and I shot all kinds of shots. ´Normal photos´ and panorama shots. It seems that in the heat of the moment I forgot to switch to manual for both the exposure and white balance. A pretty stupid mistake... =(
Sorry for bothering you with this ´problem´...

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Re: Blending of clear blue sky

by klausesser » Thu Sep 04, 2014 10:41 am

JVFotografie wrote:Sorry for bothering you with this ´problem´...



No reason for sorrying - we´re here to help each other.

I really suggest to use the color correction and play with the anchors and references.

You can choose whether they take into account brightness, gamma or colors. Or all of them together.

This way you have a good chance to deal with your issue.

Klaus

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Re: Blending of clear blue sky

by marzipano » Thu Sep 04, 2014 10:57 am

Also don't forget you can adjust the Multiband blend setting on the edit/preview page from the default of -2 up to 0 to give the maximum blending across the whole image

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Re: Blending of clear blue sky

by JVFotografie » Thu Sep 04, 2014 12:53 pm

Thanks for the tips guys!

Sincerely
John

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Re: Blending of clear blue sky

by klausesser » Thu Sep 04, 2014 12:59 pm

JVFotografie wrote:I have shot them with a 5 stops bracket with one full stop apart.


Fort future situations: balance the steps in a way the darkest step fully covers the highlights!
This way you avoid completey blurrying the highlights and having the sun as a big "blob" ;)
Additionally i always use at least f8, better f11 for minimizing the sun-halo.

Maybe you can try to process your shots again - if you kept all the steps.

This way you most likely have more control about what happens. I suggest to use Photomatix
for processing bracketed steps prior to stitching. Use tonemapping/tone-enhancing for controlling
all parameters intensely. Be careful not to exaggerate the tonemapping and produce a "HDR-look" . . . :cool:

Klaus


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