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HDR, Panoramas and Tone Mapping Merging several different exposures into a single image

Are there HDR cameras?

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Old 05-03-2015, 04:08 AM
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Are there HDR cameras?

It seems to me it would be a relatively simple setup to bolt 3 or 5 cameras together and sync them up to fire simultaneously to capture HDR with zero ghosting. All my single-camera attempts have been frustrating due to wind, subject movement, etc.

Has any company ever addressed this directly with a 3-lens camera, or perhaps a slightly less elegant solution like a big bracket or something?

Lacking that, do any modern cameras have HDR modes with burst firing? My bracket mode on my Nikon D7000 doesn't hack it.
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Old 05-03-2015, 03:07 PM
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Re: Are there HDR cameras?

Read this:
http://www.lumita.com/site_media/wor...ring_image.pdf
Specifically page 4-7.
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Old 05-03-2015, 03:17 PM
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Re: Are there HDR cameras?

An interesting read, thanks. But it doesn't really address my question.
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Old 05-03-2015, 03:33 PM
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Re: Are there HDR cameras?

You need one of those devices that capture a spectral pixmap.

We need companies to extend the dynamic range of the sensor. They've been doing that to some degree. Otherwise photography has always had limitations in capturing the full dynamic range of some scenes. Others are easy to fully capture.
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Old 05-03-2015, 03:38 PM
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Re: Are there HDR cameras?

True and true. But what about the bolting or burst scenarios?
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Old 05-03-2015, 04:02 PM
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Re: Are there HDR cameras?

My 5DMII has a burst mode that can bracket to build HDR. Now is the burst mode fast enough? For stuff not moving, sure. I wouldn't shoot the Olympics that way.
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Old 05-03-2015, 05:05 PM
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Re: Are there HDR cameras?

What are you really asking here? Cameras have varying dynamic ranges. If you had a wide enough dynamic range and a viable workflow from camera-->raw processor-->linear (or logarithmic) scene referred color space, you could do this with a single camera. You could probably set something like what you're suggesting up with a rig like the ones they use for stereoscopic work. It would be tedious though, and you would have to deal with parallax correction. You mentioned wind. Do you have a sturdy tripod?
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Old 05-03-2015, 07:12 PM
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Re: Are there HDR cameras?

Something liked the attached.
Attached Images
File Type: jpg hdr.jpg (54.5 KB, 29 views)
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Old 05-03-2015, 08:26 PM
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Re: Are there HDR cameras?

That's similar to what they do with stereoscopic rigs. You may have more problems with parallax, synchronization, and dampening than you do now with wind. Some of the medium format digital cameras claim a very high dynamic range. They might be a more practical option. With a rig like that you would still have to purchase 3 cameras, 3 lenses, and additional supporting equipment, then deal with the post processing aspects of alignment. This would also presumably involve an initial step of distortion removal. Otherwise the frames would be more difficult to align. You can also count on losing the outer border, even if all 3 are aimed perfectly. Does that really sound any easier?
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Old 05-03-2015, 09:23 PM
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Re: Are there HDR cameras?

After spending some time googling this afternoon, I have learned that my D7000 has a pretty poor reputation as an HDR tool. This might explain my disappointment in my HDR experiments, and therefore my pursuit of some more ideal solution.

I discovered this chart, which I wish I'd known about earlier.

Plus now there are iPhone apps that can handle HDR bracketing on new cameras. At the time my only option would have been toting a laptop or buying a special device.
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