HDR Photography issue

osumisan

TPF Noob!
Joined
Sep 10, 2010
Messages
106
Reaction score
4
Location
Southern California
Website
motionshooter.smugmug.com
Can others edit my Photos
Photos NOT OK to edit
I am starting to experiment with HDR photography. Using Photomatix 5.0 and bracketing 5 shots at 1 f/stop intervals. Most of my stacks blend just fine with Photomatix but some, in the sky area, show shapes that were not there in any of the bracketed exposures.

The specific image I am having issues with is one of a ocean pier with lapping water around the base at sunset. None of the bracketed images show the shapes (they look like possibly the pilings of the pier superimposed into the sky) but when combined in Photomatix, they are very much a part of the image. The shapes also have no detail, they are just squares and rectangles. As I adjust the sliders in Photomatix, the shapes become more or less noticeable, but always there.

Anyone else have this problem?


Shooting a Nikon D700, Sigma 17-55mm f/2.8 lens. Exposures ranging from 1/4th of second to 15-20 seconds in the same brackets.
 

Steve5D

TPF Noob!
Joined
May 7, 2012
Messages
3,307
Reaction score
1,265
Location
St. Augustine, Florida
Can others edit my Photos
Photos NOT OK to edit
I cannot begin to adequately express how helpful it would be to see an example of what you're trying to describe...
 

480sparky

Chief Free Electron Relocator
Supporting Member
Joined
Mar 8, 2011
Messages
24,891
Reaction score
8,877
Location
Iowa
Website
pixels.com
Can others edit my Photos
Photos NOT OK to edit
I cannot begin to adequately express how helpful it would be to see an example of what you're trying to describe...

useless_thread-1.jpg
 

hirejn

No longer a newbie, moving up!
Joined
Mar 13, 2013
Messages
636
Reaction score
96
Location
Wisconsin
Website
www.joelnisleitphotography.com
Can others edit my Photos
Photos NOT OK to edit
It's possible the software doesn't know what to do with five images that closely bracketed, or you don't. Any DSLR can capture 5 stops of brightness in a single frame so there's little to gain by bracketing five frames in 1-stop increments. Almost no scenes require more than three images, which could encompass up to at least a 15-stop range on most DSLRs (3 images 5 stops apart). Even with your camera's spot meter you can pretty easily tell with a little calculation that most scenes are not 15 stops. The exact bracketing can be figured out with a light meter calibrated to the dynamic range of your camera, such as the Sekonic L-758. What you need to do is figure out the midtone, shadows and highlights and compare it with the dynamic range of the camera, and then shoot to encompass the range of the scene. Everything else is guessing. Once you learn more about HDR and how to actually do it, you'll be able to take fewer images and process them more easily. I'd also recommend Nik instead of Photomatix for more intuitive controls.
 
OP
osumisan

osumisan

TPF Noob!
Joined
Sep 10, 2010
Messages
106
Reaction score
4
Location
Southern California
Website
motionshooter.smugmug.com
Can others edit my Photos
Photos NOT OK to edit
Well at the time of post, I did not render any photos that gave me the problem. Here is one that I did that shows my issue. the shadows under the pier are very heavy and the sunrise is very bright. Maybe combine that with the moving water. But for sure, I have no clue what I am doing with Photomatix, thus, posting here for help. check out my image and see if you have had this happen. The problem areas are in the sky, top/right and sky between pilings, lower/left. Thanks in advance!
$i-BrhBwX8-M.jpg
 

vipgraphx

No longer a newbie, moving up!
Joined
Dec 1, 2011
Messages
2,415
Reaction score
440
Location
Some Where In the Desert
Can others edit my Photos
Photos OK to edit
What kind of files are you using? NEF, JPEG, TIFF ? what are the steps that you are using to get them into photomatix? IF you like to post those files I would be more than happy to see if it happens to me as well. Those defiantly look like something is not right.
 
OP
osumisan

osumisan

TPF Noob!
Joined
Sep 10, 2010
Messages
106
Reaction score
4
Location
Southern California
Website
motionshooter.smugmug.com
Can others edit my Photos
Photos NOT OK to edit
Here are the 5 images I used. I shoot in RAW (NEF files), import from camera to Lightroom 3, import from lightroom 3 to Photomatix for editing and merging, then back to lightroom 3. Most of the images I have processed turned out great.
$i-KwSWVSk-M.jpg$i-7pp7bkx-M.jpg$i-7pp7bkx-M.jpg$i-nkv6JHV-M.jpg$i-2RgDWhH-M.jpg
 

480sparky

Chief Free Electron Relocator
Supporting Member
Joined
Mar 8, 2011
Messages
24,891
Reaction score
8,877
Location
Iowa
Website
pixels.com
Can others edit my Photos
Photos NOT OK to edit
Try building the HDR by taking one image out of the stack and see what happens. Take a different image out of each attempt. Maybe it's just one image the software is having problems with.
 

vipgraphx

No longer a newbie, moving up!
Joined
Dec 1, 2011
Messages
2,415
Reaction score
440
Location
Some Where In the Desert
Can others edit my Photos
Photos OK to edit
Those images are pretty small but it worked fine for me. Must be something on your end. Have you updated Photomatix yet?

 
OP
osumisan

osumisan

TPF Noob!
Joined
Sep 10, 2010
Messages
106
Reaction score
4
Location
Southern California
Website
motionshooter.smugmug.com
Can others edit my Photos
Photos NOT OK to edit
I had just downloaded Photomatix 5.0 before editing the photo in question. I will look to see if there are any updates but I would think that they would have given me the most recent version on the download?
 

HughGuessWho

TPF Supporters
Supporting Member
Joined
Jan 20, 2012
Messages
1,642
Reaction score
333
Location
South East Tennessee, USA
Can others edit my Photos
Photos OK to edit
That issue has nothing to do with the pylons, and those artifacts don't seem to be on any of the single images. There's something goofy going on in the processing...

Looks to me like there is an image in the stack that doesn't belong in the group. I see windows on the left. I would recheck the files that you are selecting.
 

480sparky

Chief Free Electron Relocator
Supporting Member
Joined
Mar 8, 2011
Messages
24,891
Reaction score
8,877
Location
Iowa
Website
pixels.com
Can others edit my Photos
Photos NOT OK to edit
...... see windows on the left............

Why are they windows? Yeah, they're rectangles. But that doesn't make them windows. Unless you're seeing something the rest of us are missing.
 

HughGuessWho

TPF Supporters
Supporting Member
Joined
Jan 20, 2012
Messages
1,642
Reaction score
333
Location
South East Tennessee, USA
Can others edit my Photos
Photos OK to edit
Why are they windows? Yeah, they're rectangles. But that doesn't make them windows. Unless you're seeing something the rest of us are missing.
Ok, the rectangles LOOK like windows. Regardless of what they are, they don't belong in the image and I am convinced that they are the result of an image being included in the stack that should not have been. Give it a shot. Stack three images to import into your favorite HDR app, and add another that doesn't belong. You will see the same type of artifacts in the the resulting image.
 

vipgraphx

No longer a newbie, moving up!
Joined
Dec 1, 2011
Messages
2,415
Reaction score
440
Location
Some Where In the Desert
Can others edit my Photos
Photos OK to edit
That issue has nothing to do with the pylons, and those artifacts don't seem to be on any of the single images. There's something goofy going on in the processing...

Looks to me like there is an image in the stack that doesn't belong in the group. I see windows on the left. I would recheck the files that you are selecting.

I don't think its an image in the stack that doesn't belong. IT did not do that to me when I processed them. It could be a bug in photomatix though on his computer.

OP try uninstalling the the software and reinstalling.Maybe that will help.
 

Most reactions

New Topics

Top