HDR = High Dynamic Rage. Another way of enhancing a photograph using multiple exposure settings and bringing them all together in one final image.

check this link for more info:
tutorialblog.org/hdr-tutorials-roundup/

yep ... i know what HDR means, was just wondering what specifically was done to these images. the term HDR seems somewhat broad and a lot of the processes that create "HDR" images are fairly time / resource consuming (i.e. unsuitable for editing 100's of images).

in any case, i like the results a lot.

"unsuitable for editing 100's of images"

not really, that's what makes HDR time lapses stand out from traditional time lapse videos. It is the amount of time and effort taken to produce something outstanding that makes these videos stand out from the rest, this also includes still photographs.

I can relate to why you like the results, it goes a lot deeper than the actual image, once you understand the processes involved Josh :)

The post did take quite awhile (about 6 hours just to process the HDR's with photomatix) and alot of image quality was lost along the way.

wow, thanks for quoting me, "be well" ... i'm, uh, flattered

i'm sure you'd agree that there are some methods of editing are more suitable for single images and some are more suitable for 100's of images? i was simply asking what method was employed here, nothing more.

both Andrew, myself and many other time lapser's employ many methods to emphasise our works - but the HDR route can be the most rewarding once WE have figured it out ;-)

sure you can enhance single images and achieve similar results. They tend not to be as good and, well, we lose quality too by over processing the original images. I suppose it just takes good judgement as to what route we choose to obtain the desired results.

HDR is just another option ;-)

@Andrew, did you use GDS Deflicker - I have found that this seriously affects my images?

Nope, I haven't really gotten the hang of any deflickering products.

The "secret" to deflickering HDR is to treat each series of and deflicker these as separate jobs. Then going into the HDR process, the shot to shot variation would have been reduced and the resulting HDR's will have uniform shot to shot exposure.

With HDR, each exposure in the the bracket contributes to a different portion of the tone curve. Deflickering HDR in post is very difficult as you have really N independant flicker processes at work, none of which can be completely compensated for by a uniform adjustment to the HDR frame.

What you will want to do is separate your pix into separate series, use a pre-production tool to deflicker each, then create your HDR from that. I am writing a deflickering tool, and I hope to have a HDR workflow option feature soon, it will be smart enough to handle.

Also using "average" metering is a necessity to reduce the shot to shot variation. For non-HDR work this would be a mess, but with HDR, you don't need to worry about blowing out highlites or shadows.

And of course, you have a really great example of HDR time lapse. I especially like the texture in the clouds.

Nope, all my pan/zoom work is mechanical.

Yep, It's possible if you have fast memory cards, although occasionally it will skip a beat. I almost never shoot 1fps.