focus button

There are two adjustments to enhance the picture, a focus button and a brightness button.

There's an O.K./manual focus button, a flash control/Delete button and - why not?

Somewhat confusingly, the second model was the Fotron III, which had two focus buttons instead of three but was otherwise identical to its predecessor.

The third model, again only labeled "Fotron," regained the third focus button and also featured a gray plastic housing and a different style of frame counter.

Some of these buttons promise more than they deliver - if your shot was truly out of focus, clicking the Auto Focus button from here to eternity won't make it sharp.

The G2 auto-focus also has two focusing modes: continuous, which constantly adjusts focus as the camera is moved; and single, which is a safety mode, focussing as the focus button is pressed (or shutter release half-pressed), and maintaining this reading until the shutter is released.