First exercise. Was initially reluctant to do this, mainly because I thought it was a bit too basic a starting point. Aperture and Depth of Field exercises? But. I’m here to learn. Quite surprisingly, I found it a bit challenging, not because of the difficulty, or that seeing dof in action would blow me away, but because I wanted to use the exercise to think about a subject that would be a little different to demonstarte the effect. I took a few sequences, since aborted, but it made me think, which I suppose was the entire point. Work and rain got in the way, so sights were lowered to move on. I decided on a roof line.
The dof images (1-3) clearly show a narrow band of focus that the wide aperture (f2.8) creates. Visually, the far focus image is, to me, more appealing, with this subject matter. Such a wide aperture also created a fast shutter speed (camera was set to Aperture Priority), and the few rain drops falling off the roof add a little atmosphere to the image. May be a worthwhile exercise after all! Gives me something to think about..
The next sequence of three (4-6) was to keep a single point of focus, but change the aperture, from wide to narrow…
The sequence shows the impact of a widening aperture, and how this creates a widening field of focus, that is, the area in front of, and behind, the point of focus is increasing in range, a wide aperture has a narrow band, a narrow aperture has a wide band.
Non of these (4-6) are particularly appealing. I dont think the subject matter lends itself to a central point of focus here. The above shot, in the fixed, wide aperture, sequence is most appealing (3). A distant focal point, leading the eye to the point of attention. I think aperture setting needs to be used to isolate an area of interest, or create a sense of depth, or lead the eye to a point. In this sequence, a “front to back” clarity seems least appealing.