Irix 11 mm f/4.0 User Manual

Extended User Manual – Irix 11 mm f/4.0
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DEPTH OF FIELD SCALE
EXAMPLE NO 3
Next, the aperture setting is decreased to f/16,
without changing the focus setting. This smaller
aperture will increase the DoF.
You can see the increased plane of focus in the
image. Consulting the DoF scale at “16” will show
a corresponding change in the indicated distances.
The DoF scale can be used in this manner to esti-
mate the plane of focus in your images at aperture
settings of f/8 and smaller.
The DoF scale on your lens indicates the results with a full-fra-
me camera. Using your lens with a camera with a smaller sen-
sor and dierent pixel pitch will noticeably aect the depth of
eld and the accuracy of the scale. Practice will help you deter-
mine and compensate for the dierence.

Irix 11 mm f/4.0 Specifications

General

Brand	Irix
Model	11 mm f/4.0
Category	Lenses
Language	English