the history of chalk / 12 March, 2004 [click for previous image: houses in the rain]
the history of chalk / 12 March, 2004 [click for next image: Photo Friday: Clean]
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Title • the history of chalk

I had hoped that this week’s Photo Friday theme would be something I could use this image for, but the theme is Clean so I don’t think this one is overly suitable. That said I do know what I want to use for this theme, I just haven’t managed to take a version of it yet that I’m happy with.

As for this shot: the initial inspiration for this shot was a photograph of an inverted white-board at – an interesting study in colour and detail. That shot got me thinking about the various ways in which written text is used for display purposes, and it struck me that a blackboard was a potentially interesting topic.

All my attempts at a straight shot though really didn’t manage to convey what I think is most interesting about this subject; i.e. it’s tendency to record some sort of history of the way in which it’s used – the hint of previous text, and the gentle swirls of partially erased chalk. So, this shot was the net result, a change of (colour) balance to highlight this aspect of the subject.

And if anyone’s interested; the calculation on the board (and I did have to ask about this) is part of a calculation of an inverse sine where the answer is a complex number, i.e. it’s an example of complex analysis.

capture date
shutter speed
shooting mode
exposure bias
metering mode
focal length
image quality
white balance
optical filter
Canon G5
12.00pm on 8/3/04
aperture priority
B+W UV 010
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