Canon CHDK User Manual page 33

Show Canon overexp. Value
Indicates the overexposure value calculated by the camera.
Show Scene luminance (cd/m2)
B in Miscellaneous Values.
Run average in standard illumination scenes candelas per square meter... calculated from a ratio
to Bv = 12.5.
DOF Calculator
The Depth Of Field Calculator displays 5 distances in meters...
• SD – Distance to the subject (Near Limit + DOF* 0.33). Also called the Focal Plane.
• NL – Near Limit. The distance where acceptable sharpness begins.
• FL – Far Limit. The distance where acceptable sharpness ends.
• DOF – the Distance between the Near Limit and the Far Limit.
• HYP
-
Hyperfocal distance. Depending on the aperture and zoom settings, the hyperfocal
distance reflects the optimal distance for an object to be photographed, i.e. the sharpness of
that object will be the sharpest at this specific distance.
• Show DOF calculator
• Donʼt – Disables display of the DOF calculator
• Separate – Displays the DOF values apart from the Misc values.
• In Misc – Displays the DOF values with the Misc values.
Canon Subj. Dist. as Near Limit
Enabling this value affects the way the subject distance is calculated.
Use EXIF subj. Dist.
Enabling this value affects the way the subject distance is calculated.
Experimentation may be required to clarify these 2 preceding settings, they will affect script
commands that establish focus, and some other camera behavior, such as focus bracketing.
The following 5 settings will determine which DOF values will appear in the OSD. When the
"Show DOF calculator" is set to "Separat", all 5 values are always displayed. When it is set
to "In Misc" then only the enabled values below are displayed as part of the Miscellaneous
.
Values
Show Subj. Dist. in Misc.
Enable to show Subj. Dist. in Miscellaneous values on the OSD.
Show Near Limit in Misc.
Enable to show Near Limit in Miscellaneous values on the OSD.
Show Far Limit in Misc.
Enable to show Far Limit in Miscellaneous values on the OSD.
Show Hyperfocal Dist. in Misc.
Enable to show in Hyperfocal Dist. Miscellaneous values on the OSD.
< OSD parameters < Main Menu
[Don't, Separat, In Misc]
(Propcase #65)
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