Focus limiter switch: why not more options?
As we all know keeping the focus from jumping from the subject to some distant background can often be a challenge especially for BIF. Further improvements in the AF systems hopefully will reduce this problem in the future but I was recently wondering if there is not a lower tech solution which may at least help.
Namely, if lenses had more settings for the focus limiter switch especially settings which don't extend to infinity, e.g. 10 - 20m or 10 - 30m, wouldn't that help preventing the focus to jump to some far distant background? At least in my experience I often have the background far beyond any reasonable distance for photographing birds but the focus still jumps to the background. If one could limit the acceptable focus range to a closer range it should reduce this problem. No?
Of course, killer would be if one could continually or at least by some small increment (e.g. 5 m) adjust the upper and lower end of the focus range from the camera (or directly on the lens if feasible).
As a sidenote, I recently started to successfully employ the preset focus to deal with situations where the focus jumps to the background. Instead of manually having to bring the focus back or close to the subject I just twist the preset focus ring briefly and I am back in business. Probably an old trick for the veterans...
Best, JR