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On a photowalk last weekend (see previous post) I shot some frames in hopes of stitching a panorama of the Austin Skyline as viewed from the SRV statue on Auditorium Shores. I bracketed my shots with a mind toward using HDR and/or compositing to capture most of the dynamic range. I had no intention of filling in the deep shadows of course — It was getting dark after all.
In processing I set off to try the HDR route (I believe this is my first ever pano in HDR) and based on advice from Dave Wilson I first tonemapped the separate frames (3 exposures used for each) using the same settings in Photomatix. I used something on the order of 60% “strength” and tried to keep the HDR look toned down (FYI, the original exposures really do have this much blue in them). I tweaked the perspective of the individual frames a bit in Lightroom then merged to a panorama in CS5 using the ‘cylinder’ setting for the stitch. I could write an entire post about my perspective and stitching issues but suffice it to say that using the ‘auto’ setting was giving me very skewed perspectives from my wide-ish angle frames (30mm on a full-frame body). The automatic blending of the exposures after the stitch usually does a bang-up job of matching colors and creating a seamless stitch but I did have to manually tweak one area to make it match. Hopefully it’s not too noticeable…I won’t point it out of course. The HDR was a bit too saturated for my taste (it still kind of is…can’t make up my mind how I want this to look) so I used the vibrance adjustment to tone it down. Curves adjustments were used in various places for some final tweaks. No original exposures were masked into the final image.
Located west of Austin, TX (about 20 miles from downtown as the crow flies), Hamilton Pool is a favorite swimming hole for many Austin-area residents. It’s formed at the point where Hamilton Creek pours over a 50 foot waterfall into an incredible grotto.
Jim Nix (http://www.nomadicpursuits.com) invited me to go shoot at the pool this weekend. I’ve lived in Austin for 19 years, 9months, and some-odd days and I had never been to Hamilton Pool. Because of this fact (and of course because Jim’s a great guy) I took him up on the invite and had a great time going after some images. Got a bit of exercise too.
You can see Jim in the photo below. I saw him standing near the falls and I plopped down my tripod right where I was to capture an image which included him. I had seen incredible images of this pool but they didn’t have anything as a reference point to convey the true size. Including a person in the frame gives the viewer a real sense of how big this grotto is.
3-exposure HDR, center exposure 18mm f/14, 1/2s, ISO 100
On the drive out the skies were looking promising for HDR (lots of texture) but by the time we were there and set up they seemed to have turned almost to plain, gray overcast. I didn’t end up with decent skies in any of the shots I’ve processed at so far.
I’m not super happy with any of the images so far but they’re good enough for me to at least enjoy them. I was on a semi-strict timeline that day but I came away with some angles I’d like to explore further on my next visit. My hope is to visit again on a *partly* sunny day (want some awesome clouds to include in the shots). I would also like to visit in the spring when there are some leaves on the (currently bare) trees.
Here’s another shot of Jim working on some compositions. The foreground is busy with all those branches but I still like the shot because of how the focal length compresses Jim and the falls in the frame.
3-exposure HDR, center exposure 70mm f/20, 1/2s, ISO 100
And one more, a spot along the creek with some interesting water, trees, and reflections. I might have played with more angles here if it were not for my schedule.
3-exposure HDR, center exposure 24mm f/13, 1/13s, ISO 100