Getting Serious > Dynamic Range & HDR

HDR, Exposure's, and you :)

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Jordan Powers Photography:
I used to play with HDR quite a bit when photomatix first started peeking into the "mainstream". After awhile, I got lazy with it. I tried experimenting with new things to compensate.

A few shows back, everyone was talking about using HDR and avoiding motion blur with moving objects. I actually found a fairly generic way to get around this.

I started just taking one well exposed photo of the subject, and i just adjusted the exposures into 3 or 5 different exposures in Photoshop and combined all of those images in Photomatix. I did several tests to compare, and really didn't notice much of a difference from actually TAKING several exposures. I don't have Photomatix any longer to show my examples, but give it a try and see what you some up with. Post your results. Maybe i will download a demo and do one myself.

Gavin Seim:
Hey Jordan. This is what would be called a psudo HDR, and though it's pretty common your really not getting an HDR. No matter what you do to that image there's only so much range there, and though you may have got some good results it can depend on the image. Personally when I tested it it worked lousy for me.

I'm not saying it's not useful, but it would be kinda like taking a low quality jpeg, and saving it in high quality mode. You still only have the information you started with, but perhaps presented better.

Jordan Powers Photography:
Sure, I agree - my point was as another alternative to capture motion with HDR. Such as with people moving, etc.
Here is my HDR Quicktest: ( I apologize for the gigantic files - just wanted everyone to see details)

These are the Original Exposures from bracketing

They produced this image:


Here are the ones in which I altered the exposure in PS

Here is the result:


I don't know. I don't personally see a whole lot of difference. As I said also, this would be a good methos to use if you just cannot capture the motion of an object. Anyway - just a tip I wanted to share!

Gavin Seim:
Thing is jordan this is a scene that doesn't have a lot of dynamic range. It;s pretty even to begin with. You could almost get that result by taking one exposure and adding curves plus a little B&D (see below what I did with the one bright image in the first file set and applied as few PS adjustments)

To get a real test you need to try it on something with a high dynamic range. Like a sunset, or a bright sky behind someone standing in shadow.

It'd be nice is one file worked, but in scenes where you really have a high dynamic range (which is what HDR is really best for) one image just doesn't have enough latitude.

Once camera sensors get 32bit capture HDR combining will nor likely be needed because the sensor will capture that much latitude.

Jordan Powers Photography:
You're right, and I completely agree with you :)

Maybe I wasn't making my point clear enough :)
It was more a suggestion to get around using HDR when moving objects are involved. I used these examples to show that there isn't a HUGE difference between "natural" HDR, and "Processed" HDR (?).

While I understand that it will obviously not be the same quality, it is a way to get around that common error.

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