Comments on: High Dynamic Range http://www.vindaugagallery.com/archives/300 Light + Glass Studio Blog Fri, 18 May 2012 08:40:30 +0000 http://wordpress.org/?v=2.5.1 By: Kathleen http://www.vindaugagallery.com/archives/300#comment-3476 Kathleen Mon, 13 Aug 2007 20:28:15 +0000 http://www.vindaugagallery.com/?p=300#comment-3476 Thanks, that helps! Thanks, that helps!

]]> By: Dawn Rosenberg http://www.vindaugagallery.com/archives/300#comment-3470 Dawn Rosenberg Fri, 10 Aug 2007 00:30:53 +0000 http://www.vindaugagallery.com/?p=300#comment-3470 Hey there, Hud. I wanted to say I think you are starting to get on the right track with your HDR. The tunnel is an especially good start. I have some HDR on my Flickr. Take a look and if you want to chat some time about it let me know. Keep up the good work! Dawn Hey there, Hud. I wanted to say I think you are starting to get on the right track with your HDR. The tunnel is an especially good start. I have some HDR on my Flickr. Take a look and if you want to chat some time about it let me know.

Keep up the good work!
Dawn

]]> By: Hud http://www.vindaugagallery.com/archives/300#comment-3469 Hud Thu, 09 Aug 2007 05:41:32 +0000 http://www.vindaugagallery.com/?p=300#comment-3469 Well, Wah can explain this much better but as I understand it High Dynamic Range pictures are pictures that exhibit a range of exposure that exceeds that of film. Or, put another way, it is similar to the zone system. Say you are out on a really bright day but there is also some good, heavy-duty shade, usually you can't get both to be exposed properly in the same image. Ansel Adams was a bad ass. The rest of us can do this. Assuming that I understand what I am doing, you take a picture that exposes for the brightest spots, then you take a picture that exposes for the darkest spots, then you step between them (also changing only the shutter speed, aperture changes depth of field) at a regular interval (though I am not sure what the optimal interval is, there may not be one). You import all of these images into photo shop (or some other program) and let the computer merge all of these into one image that (as I understand it) cannot be displayed properly on contemporary equipment because its got 32 bits per channel. So, you have to tweak it out when you drop it first to 16 bits and then, if you so choose, to 8 bits. This process should allow you to have a picture that has the darkest spots and the lightest spots exposed properly. However, lots of folks are using it for other effects. I'm still trying to figure out how it works. Well, Wah can explain this much better but as I understand it High Dynamic Range pictures are pictures that exhibit a range of exposure that exceeds that of film. Or, put another way, it is similar to the zone system.

Say you are out on a really bright day but there is also some good, heavy-duty shade, usually you can’t get both to be exposed properly in the same image. Ansel Adams was a bad ass. The rest of us can do this.

Assuming that I understand what I am doing, you take a picture that exposes for the brightest spots, then you take a picture that exposes for the darkest spots, then you step between them (also changing only the shutter speed, aperture changes depth of field) at a regular interval (though I am not sure what the optimal interval is, there may not be one). You import all of these images into photo shop (or some other program) and let the computer merge all of these into one image that (as I understand it) cannot be displayed properly on contemporary equipment because its got 32 bits per channel. So, you have to tweak it out when you drop it first to 16 bits and then, if you so choose, to 8 bits.

This process should allow you to have a picture that has the darkest spots and the lightest spots exposed properly. However, lots of folks are using it for other effects. I’m still trying to figure out how it works.

]]> By: Kathleen http://www.vindaugagallery.com/archives/300#comment-3468 Kathleen Wed, 08 Aug 2007 18:08:46 +0000 http://www.vindaugagallery.com/?p=300#comment-3468 My brain was so addled that I'm starting to add extra letters to words randomly! My brain was so addled that I’m starting to add extra letters to words randomly!

]]> By: Kathleen http://www.vindaugagallery.com/archives/300#comment-3467 Kathleen Wed, 08 Aug 2007 18:07:42 +0000 http://www.vindaugagallery.com/?p=300#comment-3467 Whoa. I skimmed it becasuse I did not understand it. I know you wrote a long post about the subject, but what the stink is HDR? Don't force me to use a search engine here! I'm going to make A. read it. Maybe he will know what you're talking about. Whoa. I skimmed it becasuse I did not understand it. I know you wrote a long post about the subject, but what the stink is HDR? Don’t force me to use a search engine here!

I’m going to make A. read it. Maybe he will know what you’re talking about.

]]> By: gclark http://www.vindaugagallery.com/archives/300#comment-3466 gclark Wed, 08 Aug 2007 15:31:15 +0000 http://www.vindaugagallery.com/?p=300#comment-3466 i read it. didn't understand it, but i read it. i read it. didn’t understand it, but i read it.

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