Exercise 3: Focus at Different Apertures

This exercise is similar to the last in exploring how aperture affects focus.  I haven't yet been able to figure out the physics, but the result is this - the smaller the aperture (the larger the f-stop), the more clearly in focus will be objects at near and far depths.

I set out to demonstrate this yesterday evening in a walk around my neighborhood. I was planning to shoot a row of cars.  In fact I did shoot a row of cars.  But I also found something unusual that demonstrates the effect better than the car photos, bands of neon tubing wrapped around a column, which I shot with my body against the column, camera point up.

The Exposure Triangle: Aperture, Shutter Speed, ISO

Course author Michael Freeman reminds us that “right from the start” we should familiarize ourselves with the following basic concepts.  This shouldn’t be hard to do, as all three photography classes I’ve taken spent a great deal of time talking about just these things.