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HDR Panorama [img]

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Sven Hedlund

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It was taken with D200 + 12-24 @ 12mm. 18 photos were used: six positions of my panorama head, three photos with different exposures at each position. Each triple was merged manually in PS to increase DR. The six resulting HDR photos were stitched used PanaVue Image Assembler.

Original unresized image is 9768 x 3706 pixels, it will probably go to print.

C&C or questions are welcome!

--
Sven Hedlund

http://www.svenhedlund.com
 
stunning.
just curious about your workflow though.
why did you choose to blend the "slices" separately before stitching?
isn't it easier to do the reverse?
or did you just use the same settings to blend all the sets?

thanks,

--
Roberto (equipment in my profile)
http://spino.smugmug.com
 
The sun is setting over there, but the ground and trees are bright as if they have the sun on them. Maybe there are two suns????

It is quite an impressive piece of work though. I just thought I would explain that to the average person it will be adored, but a photographer can see that there's something not quite realistic about it.
 
I've been making a number of HDR panoramas, with the same HDR then stitch flow.

What surprises me with yours is that you are getting good, in fact great, results with a super wide angle lens. I would have thought the lens distortion would cause problems when stitching. I've been taking mine using a 35mm prime to keep the distortion in control.

I've got 5 HDR panoramas on my site, viewable at 1100 pixel vertical resolution. All taken with the 35mm prime.

http://almy.us/gallery/main.php?g2_itemId=415
 
Great achievement Sven and one you can be proud of!
Glad that you didn't overdue the HDR technique and keep it at nature.
 
rspino said:
stunning.
just curious about your workflow though.
why did you choose to blend the "slices" separately before stitching?
isn't it easier to do the reverse?
or did you just use the same settings to blend all the sets?
Click to expand...
Thanks rspino!

I have never done any HDR pano before, so I just did it the way I thought would easiest. If I stitch multiple versions with different exposure before blending, how can I be sure that those versions are stitched exactly the same way?

--
Sven Hedlund

http://www.svenhedlund.com
 
Eclipse Optics said:
The sun is setting over there, but the ground and trees are bright as
if they have the sun on them. Maybe there are two suns????

It is quite an impressive piece of work though. I just thought I
would explain that to the average person it will be adored, but a
photographer can see that there's something not quite realistic about
it.
Click to expand...
OK, I needed HDR to get this result, but the original raw files were not that bad as one may think. Notice, the panorama spans over more than 180 degrees, so the trees on each side are actually side lit. I think that the wide angle contributes as much as the light to the unrealistic feel of the image.

--
Sven Hedlund

http://www.svenhedlund.com
 
talmy said:
I've been making a number of HDR panoramas, with the same HDR then
stitch flow.

What surprises me with yours is that you are getting good, in fact
great, results with a super wide angle lens. I would have thought the
lens distortion would cause problems when stitching. I've been taking
mine using a 35mm prime to keep the distortion in control.
Click to expand...
Well, I had to do a lot of manual work in PS, cleaning up the seams. I guess the distortion gave me a couple of extra hours in front of the computer...

--
Sven Hedlund

http://www.svenhedlund.com
 
mrc_72 said:
Great achievement Sven and one you can be proud of!
Glad that you didn't overdue the HDR technique and keep it at nature.
Click to expand...
Thanks, your comment means a lot to me! Since I realized that this pano (and quite a few other photos) would need HDR, I took the time to download the trials of a few different HDR programs (Photomatix among others). I found it so hard to get natural colors with any of them, that I ended up spending several hours doing it manually in PS. I guess there is no short cut to natural looking HDRs...

--
Sven Hedlund

http://www.svenhedlund.com
 
I find the easiest way to do HDR panorams is to use Autopano pro ( http://autopano.net ) Import all the photos and Autopano will generate three separate panoramas (one for each exposure grouping) then blend the differently exposed panoramas with Photomatix.



After they are blended I will often overlay the result in photoshop with one of the original panoramas to help bring back some of the natural tonal relationships.

I made a pdf that overviews the workflow. I can make it available if there are people that would like it.

Scott

--
http://www.scotthendershot.com
http://325.scotthendershot.com
 
rschlierbeck said:
I made a pdf that overviews the workflow. I can make it available if
there are people that would like it.
Click to expand...
I would love to read about your PDF. Would you send it to my email? Mail address is in my profile.

Thanks
--
Ahmet
---------
'All that is necessary for the triumph of evil is that good men do nothing.'
Edmund Burke

 
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