F-Stop
Just as you would with a real-world camera, you adjust depth of field in a LightWave camera
by adjusting its f-stop setting.
The human eye automatically adjusts to brighter or darker lighting situations.Under low
light, the human eye??™s iris and pupil open to allow in the maximum amount of light.
Bright sunlight, on the other hand, makes the human eye close to protect the eye.
By the same token, cameras also have an iris that allow in more or less light. Although the
human eye smoothly opens and closes to control incoming light, cameras need to have
this control set. This is done through f-stops.
F-stops are numerical values that represent the amount of varying degrees of light transmission.
A smaller f-stop allows more light into the camera and reduces the depth of field,
whereas higher values allow less light into the camera but increase the depth of field.Here
are the common f-stop numbers used in the real world:
?—? 1.4??”Softest focus; allows a lot of light into the camera
?—? 2.0
?—? 2.8
?—? 4.0
?—? 5.6
?—? 8
?—? 11
?—? 16
?—? 22??”Sharpest focus; allows little light into the camera
Note
One of the benefits of Depth of Field, beyond adding depth to your animations, is to
steer the viewer??™s attention.
Pages:
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334