My First HDR Photos

I’m learning about High Dynamic Range (HDR) photography using a Canon G10 and Photomatix Pro. The photo above is my first attempt using the Detail Enhancer tool with five bracketed exposures +4 +2  0 -2 -4. Here is the same image again, this time with the Tone Compressor tool…

Here is a comparison photo created from a single RAW file with minimal adjustment…

One thing I discovered is that the Tone Compressor in Photomatix, Adobe Lightroom, and the RAW plug-in for Photoshop all do approximately the same thing—global tone mapping to recover “blown” pixels in bright areas and bring out detail in dark shadows.

The key toning controls from Lightroom 1.4.1 are shown on the right. Recovery pulls the highlights in from the right on the histogram. Fill Light does the opposite from the left. It also has the nifty Clarity and Vibrance sliders near the bottom. The former is a type of local contrast enhancer and the latter increases the saturation of mid tones. I routinely give my photos a dash of each! The RAW plug-in has almost identical controls for importing/converting. Turns out I’ve be doing lightweight HDR for the past two years thanks to LR. Now it’s time to take things to the next level!

Finally, I just finished reading Ferrell McCollough’s Complete Guide to High Dynamic Range Digital Photography, which is a good place to start if you are ready for an in depth discussion of techniques and software.

Everglades Canoe Trip 2009

Yet another excellent adventure, this year with my youngest brother Bruce. We started at Coot Bay Pond and circled clockwise around Whitewater Bay. The first day was spent mostly paddling up the Joe River, where we saw manatee and dolphins galore. The Joe River Chickee faces west and we had an excellent sunset. The next day we did a “boomerang” with the tides out to the Gulf and up the Shark River. The hurricane damage to the coastal mangroves was remarkable. We even saw a Loggerhead Sea Turtle swimming toward the shore!

After exploring the small streams north of the river we camped on the Shark River Chickee. The next day we waited for the tide to return and float our boat off the mud. We got some reading in, ate lunch and took off about noon. Bruce led us through “The Labyrinth” — a complex of creeks and ponds leading back to the big bay. We stopped to rest at the Watson River Chickee and kept out of the wind as much as possible on our way up the North River.

It was cool with a steady breeze to keep the bugs off so we slept out under the stars that night. Outstanding! Had a small problem with my pad, which developed a “tumor” overnight. The sun rose in an almost cloudless sky. We continued north towards the cut-off between the North and Roberts Rivers.

Along the way we saw bromeliads in bloom and a pair of Ospreys sharing a fish in a classic nest. From there we turned east into the Lane River and did a bit of bushwhacking. Then we proceeded south to Hell’s Bay and our chickee. That night we had both Venus and the crescent Moon overhead.

The next day dawned warmer and more humid. Two dolphins escorted us for twenty minutes as we made our way down the East River and out to the bay. Then it was headwind time until we crossed Coot Bay and got back into the mangroves. We finished where we started, the Coot Bay Pond put-in. An nice finish to a spectacular trip!

Cycling the Withlacoochee State Trail

The Withlacoochee State Trail stretches 46 miles through farmland, small towns, oak hammock, pine scrub, and bald cypress swamps. We rode from the Ridge Manor Trail Head to Floral City and back (approximately 34 miles, see detailed map). This route took us through a wildlife management area and state forest. The trail is well maintained and mostly isolated from car traffic.

At one point we were close enough to walk down to the Withlacoochee River. There was no perceptible current, but the water was clear. Cypress knees were in abundance and reminded me of a coral reef.

We saw two gopher tortoises (2) along the way. Both had sandy soil clinging to their backs. There were numerous small birds I couldn’t identify (warblers?) as well as a flock of wild turkey foraging at the wood’s edge.

Check out this gallery of additional photos from along the trail.