EL-2800M-USB / EL-2800C-USB
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Fig. 46 Blemish compensation
Note: If defective pixels are found consecutively in the horizontal direction, the blemish
compensation circuit does not work.
8.7 Lens
The EL-2800-USB can be used with 4 different types of auto iris lenses, in addition to standard
lenses with manual iris control. If an auto iris function is to be utilized, the lens type used must be
selected in Lens Select.
Table -28 Lens selector
Lens Select
Description (Control with camera)
Note
P-Iris Lens
1) Iris position can be remotely
controlled manually
2) Auto iris control is also
available
If P-iris lens is used, the
specific model name should
be selected in lens select.
Motor controlled lens
1) Iris position can be remotely
controlled manually
2) Auto iris control is also
available
Video iris lens
Only auto iris control is available
Factory Option
(Use AUX Type 2)
DC iris lens
Only auto iris control is available
Factory Option
(Use AUX Type 2)
8.7.1 About P-Iris
New Elite Series EL-2800M-PMCL and EL-2800C-PMCL come equipped with P-Iris control as part of
the standard lens control function. The P-Iris system is a newly developed lens control method
designed to control the iris more precisely. Especially for video cameras in surveillance applications
utilizing megapixel CCD or CMOS imagers, it becomes a very important factor to control an iris in
order to achieve the maximum camera performance. In surveillance applications, depending on
shooting conditions, resolution and depth of field are important factors. The iris is deeply related
with these factors. If the iris diaphragm is smaller, but not too small, resolution gets better and the
depth of field is also deeper. The P-Iris system controls the iris diaphragm precisely and maintains
the best image with the highest resolution and depth of field. P-Iris can also combine with gain and
electronic shutter to keep the appropriate iris position under changing lighting conditions (ALC
function).
B/W
Color
Blemish Compensation Principle
Defective Pixel