Tuesday, October 21, 2008

A Quick Guide to HDR Photography

An HDR Image of Binondo viewed from the Pasig River

High Dynamic Range Imaging (HDRI or just HDR) is a set of techniques that allows a greater dynamic exposures (the range of values between light and dark areas) than normal digital imaging techniques.

The images below were shot using three exposures and then merged together in Photomatix. This is quite an elaborate workflow but gets a lot easier when you are already familiar with it. For comparison, I have presented the before and after photos--without the HDR and with the HDR.

If you like HDR, then here's my share on how to do it, as requested by Ma'am Vicki Mahalkaayo of Limburgerhof, Germany. (Ma'am Vicki: Here's the process of how I do my "painting-like" photos)

Of course buy a camera first :)...

A dslr is highly recommended. Nikon, Canon, Pentax, Sony, whatever.....

Set your dslr into bracketing shots with three exposures with the following values +2, 0, -2 (this depends on your taste, some use just +1,0,-1).. You can consult your camera's manual on how to bracket exposures.

You can now shoot your three exposures (burst mode of three shots recommended). Be very careful that the camera doesn't move when you're shooting. Even a minor shake can ruin the whole thing, so if you are pasmado, buy a tripod or a lens with an IS or VR. Mura lang naman e...hmmm..

Buy a Photomatix and Photoshop software. I recommend original cds. Pirated, well...not recommended.

Use Photomatix. 3 exposures +2, 0, -2 is enough (some people even use up to 7 exposures for more dynamic images, but for a start, let's just use three, okay?).

Play around with the Tone Mapping, giving attention to Light Smoothing.

MicroContrast set to Max.

MicroSmoothing to 3.

Whiteclip to 5%

Black Clip to .153%

Gamma to 1.10.

After that I go to Photoshop CS2/CS3 and play around with levels, contrast and decrease/increase saturation, Unsharp mask, and Smart Sharpen, depending on taste. It's simply just getting what you want, kanya kanya lang namang taste yan eh di ba?

Play around in Photoshop! Don't be afraid, explore its possibilities. Maximize it's potential. You can always click the undo button if you didn't like the results. Sliders can go back and forth and you see the results immediately. It's just a trial and error, and you learn a lot from errors, o di ba?

There ya go! Hope this helps....


MacArthur Monument, Unedited photo


MacArthur Monument, HDR




Manila Cathedral, Unedited photo


Manila Cathedral, HDR




MacArthur Bridge, Unedited photo


MacArthur Bridge in HDR



Bawal Po Umihi Dito, unedited photo


Bawal Po Umihi Dito, HDR




Binondo, unedited photo


...and in HDR

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