All About Photography

Digital cameras can present the scene to portray in optical form (VF) or digital (LCD) in both cases they lack the depth of field vision or blurring of the subject before and after main (analog cameras same thing happens without digital vision, of course;). I will not go into detail about the support they would give us the ring of depth of field scale, which should have all the objectives and does not take today? and when they have it summarized.

However there is a useful feature that allows you to preview the shot, the depth of field, and this is the button or lever “preview optics (VPO),” what happens is that when you look through the viewfinder shows the camera always the maximum opening scene, regardless of the fixed diaphragm, setting the vision OPV is adjusted as will be the photo exposition values ​​selected, interesting no? Who needs the ring of depth of field?? For I even accept the desirability of this feature there are times when the lighting or composition or eyestrain not allow a clear view of the depth of field.

As they say on the street “strange never know what you have not.”