Wednesday, July 15, 2009

Macro Workshop & Updates (Johan)

Recently I attended a macro photography class at a tulip farm. Never in my life have I seen so many macro lenses--mostly the 100/105mm ones. Here are some macro photography tips I learned:
  • When photographing flowers, it is good to use the RGB histogram (verses the luminance histogram) to ensure that you don't blow out important color channels. The RGB histogram shows a histogram for each color channel (red, green, and blue) so that you can properly expose that color. For example, when shooting a pink flower, the luminance histogram may show a correct exposure, but the RGB histogram may show that the red channel is drastically over- or under-exposed.
  • Even if you have a macro lens, use extension tubes or diopters to get even closer to your subject. I used a macro lens and extension tubes for the picture below. The flower was backlit with a off-camera Canon 580EX II strobe.
To avoid getting your camera wet, use Op/Tech rainsleeves. When shooting in some rain recently my Canon 580EX (version 1) strobe quit working properly. Canon repaired it, but the cost of fixing it could have been fairy easily avoided. (Yes, the rainsleeves were in my bag) :-(

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