Thursday, March 10, 2011

depth of focus

An act shot with a portrait lens and a small depth of focus,

An act shot with a portrait lens and a small depth of focus,

but I'm frustrated by it's relatively small depth of focus.

but I'm frustrated by it's relatively small depth of focus.

However, the larger the aperture stop, the shorter the depth of focus.

However, the larger the aperture stop, the shorter the depth of focus.

Figure 10: Lithography tool depth of focus and surface topology.

Figure 10: Lithography tool depth of focus and surface topology.

Depth-of-field-and-Focal-Length. An example of such a lens is the telephoto

Depth-of-field-and-Focal-Length. An example of such a lens is the telephoto

Depth of Focus

Depth of Focus

This mode can give a fair idea of Depth of Focus when u r in doubt.

This mode can give a fair idea of Depth of Focus when u r in doubt.

Depth of Focus (Inverse Proportionality)

Depth of Focus (Inverse Proportionality)

 focus error would be equal to the depth of focus behind the point of

focus error would be equal to the depth of focus behind the point of

The ideas of depth of focus and depth of field both concern the ability of

The ideas of depth of focus and depth of field both concern the ability of

 gives a greater depth of focus, and results in reduced image distortion.

gives a greater depth of focus, and results in reduced image distortion.

Depth of Focus

Depth of Focus

 camera is scanned with high contrast gradients (fig.1; depth of focus).

camera is scanned with high contrast gradients (fig.1; depth of focus).

 effective depth of focus and provide a wider process window (i.e.,

effective depth of focus and provide a wider process window (i.e.,

 she should focus at the hyperfocal distance. That sounds simple enough.

she should focus at the hyperfocal distance. That sounds simple enough.

Extreme shallow depth of focus for romantic softness.

Extreme shallow depth of focus for romantic softness.

The larger the depth of field, the greater the zone of sharp focus.

The larger the depth of field, the greater the zone of sharp focus.

Depth of Focus – the art of selectively focusing on an element or elements

Depth of Focus – the art of selectively focusing on an element or elements

 I had to switch over and focus manually. foreground-depth of field.jpg

I had to switch over and focus manually. foreground-depth of field.jpg

Depth of field for a camera. In the second diagram, above, one lamp is moved

Depth of field for a camera. In the second diagram, above, one lamp is moved

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