If you have spent much time at all, with photography, you will know we have something called the Rule of Thirds. With the cameras themselves, we have THREE distinct settings, used to get the proper lighting: ISO, Shutter Speed(Here is a more comprehensive article on shutter speed), and aperture. We take into account the fstop for depth of field. We use technology, to capture art. There are artists out there, that create art, then use a camera to capture it. I will freely admit, I am no where CLOSE to that… but I do like the techy aspect of photography. I have learned how to use ISO to squeeze out a bit better shot, but I realize I am giving up a “clean” image. (due to more “grain” or noise). I have figured out how to use neutral density filters to reduce the light going into my camera, so I can take a longer exposure of a water, to make it look silky. I think I have come a long ways. While I used to actively think about these things, now, it is becoming second nature to a degree. (let’s face it, I have only had my dSLR for just under 2 months, and you can only learn SO much in that time…)
So, for my NEXT geeky move, into photography. It is HDR, or High Dynamic Range imaging. This stuff is pretty cool. There are flickr groups dedicated to it. There is software designed for it (Photomatix and High dynamic Photo) and there seems to be a big buzz about it. It is very cool. While our eyes can see something like 11 “fstops” of range, a picture can pull up between 5 and 7. (I have seen both of those numbers listed). So, our eyes can see a LOT more of a scene than a camera. We can see INTO shadows, and pull out detail, while at the same time, looking over at a bright subject, and seeing detail in there. With a camera, one or both would be blown out, or underexposed, to get a picture. Well, with HDR, we take a series of pictures, and blend them into one. This creates some VERY cool effects, and makes for some very rich pictures. (Peruse the HDR flickr group I linked to above, to see just how cool).
For some reason, my geeky friends love this, as do I. It is, on its surface, very simple. I set my camera to auto-bracket. I fire 1 shot at -1 exposure, 1 at the proper exposure and then one more at +1 exposure. Then, I use one of those two pieces of software above, to merge it into one picture. I know it is FAR more complicated than that, since Photomatix has 2 settings, one is HDR, and one is blending. To me, they are one in the same (at this point in my journey of knowledge), but, since both are options, I know they are ultimately different.
If you are curious about the quality of the software I list, from what I understand, Photomatix is the most popular piece of software. It is supposed to be able to create the most natural looking pictures. While High Dynamic Photo creates good photos as well… its user-interface is MILES better than Photomatix’s. Ultimately, it depends on what you care more about. Oh, and Photomatix is about double the price of HDP. (as an aside, I bought Photomatix today, to start playing with this stuff, and later in the day, learned about HDP. I doubt I would have gone for Photomatix, because of the price, but if you search well with Google, you CAN find a 15% discount on Photomatix, bringing the price down some)
This one was processed with High Dynamic Photo. I had 3 exposures of -1.33/0/+1.33.
This one was processed with Photomatix. I had 3 exposures of -1.33/0/+1.33.
These are a little different. They were blended, but based on one RAW file. I set one to +1 Exposure and one to -1 exposure saved the 2 files, and then combined them. It was more to test it out. The top one, is “blended” the bottom one was combined using HDR.