Getting desperate for something to shoot during this bad weather, so decided to shoot my street and process High Definition Range photos using Adobe CS4 Merge to HDR, Photomatix Pro 3.1. using the detail Enhancer method and again using the Tone Compressor method.
I Used the A700 and CZ16-80 at f5.6 with a B+W Slim Circ. Pol. filter, 16mm focal length, ISO200. Camera was set to record 5 RAW exposures spread 0.7EV apart, hand held, neutral everything. It resulted in 5 exposures of 1/350sec, 1/760sec, 1/1000sec, 1/1500sec and 1/3000sec. (or +1.4, +0.7, 0.0, -0.5, -1.5) As you can see, I am not positioned at the ideal 90 degrees to the sun to maximize the effect of the Polarizer.
It would have been better if I could have used a tripod and shot at 1 or 2 EV apart but with the A700 that would have meant adjusting the speed by hand and It was freezing so I took the easy way out and used the camera bracketing mode.
Here are the results. I should note that this is my first attempt at HDR and is in no way a scientific experiment. I think the first is not bad, but I probably could have done as well by manipulating a single photo in CS4. The second is more saturated and the light is harsh. It looks a bit overdone. The third is yuk! why I'm unsure. What is certain is that I will have to try again, perhaps with a better photo, tripod and larger spread of Exposure values.
You will note that the corners show a fair amount of vignetting, this is in spite of using a slim filter (no thread in front) on the CZ16-80.
Within four hours of taking these photos we had another 150mm of snow followed by -16o
Adobe CS4 Merge to HDR, all default settings.
Photomatix Pro 3.1 Details Enhancer Method all default settings.
Photomatix Pro 3.1 Tone Compressor Method all default settings. (It was so dark that I had to lighten it considerably)