Function Descriptions; Zoom Control; Focus Control - Panasonic GP-MH310 series Technical Manual

Function Descriptions

[1] Zoom Control

Zoom Position Control
The zoom can be operated using Tele/Wide or moving
the zoom to a specific position.
Tele/Wide
⁃
Transmit the Tele or Wide command to execute the
Tele/Wide operation at the speed configured by the
Tele/Wide Speed command. The Stop command
stops the operation. (The operation does not stop
without transmitting the Stop command.)
The speed targets are as follows.
Required Time (s) from Wide End → Tele End
Settings
1
2
3
4
5
(Setting5 could be selected only from the Version
1.03-00 or later)
Direct
⁃
The Direct command can move the zoom lens to the
specified zoom lens position.
The relation between the zoom lens position and
magnification is as follows.
Digital Zoom Tele Limiter command needs to be
sent before the Direct command when moving to
digital zoom field
Magnification HB310
Optical 1x
Area 2x
3x
4x
5x
6x
7x
8x
9x
10x
Electronic 20x
Area 40x
80x
160x
Optical Zoom Limit Settings
The optical zoom magnification can be limited using
the Optical Zoom Tele Limiter command. The digital
zoom cannot be used if the limit is set to the Tele side.
Digital Zoom
A maximum of 16x digital zoom can be set with the
Digital Zoom Tele Limiter command. Together with
the optical zoom, a maximum of 160x is possible,
however, the resolution decreases.
Although the vertical resolution can be increased by
enabling the V-Reso.UP function using the V-Reso.
UP ON command, residual images and blurring may
become more apparent with moving subjects.
HB310
7.8
4.5
3.6
2.8
2.0
0
675
950
1125
1250
1350
1438
1500
1563
1600
1610
1630
1670
1750

[2] Focus Control

Manual Focus
The manual focus can be operated using Far/Near or
directly moving the focus to a specific position.
Far /Near
⁃
Transmit the Far or Near command to execute the
Far/Near operation at the speed configured by the
Far/Near Speed command. The Stop command
stops the operation. (The operation does not stop
without transmitting the Stop command.)
The speed targets are as follows.
Required Time (s) from Near End →
Settings
at the Near Limit 1m and Tele End(s)
1
2
3
4
Direct
⁃
The Direct command can move the focus lens to the
specified focus lens position.
Auto Focus
⁃
The Auto Focus ON command sets the mode to auto
focus and automatically focuses on the subject if
the subject moves. This mode is cancelled when the
Manual Focus ON, Near, or Far command is used.
Although the minimum focus distance is set to 1m by
default, this can be changed by using the Near Limiter
command. In addition, the sensitivity of the AF to the
change in subject can be changed using the Auto
Focus Sensitivity command and the focusing area can
be changed using the Focus Area command.
One-Push Auto Focus
The auto focus can be moved only once using the
One Push Trigger command. The mode prior to
starting the auto focus is retained after focusing.
Focus Lens Offset
When covering a camera, such as the dome camera
with a cover or similar, the refraction of the light due to
the cover changes the OPL. This may result in close
subjects being out of focus when using a powerful
zoom.
In that case, it is necessary to move the range of
motion of the focus lens depending on the change in
OPL.
Validate the Offset using the Cover Offset ON
command and transmit a Cover Offset Level
−22−
Far End
HB310
27.2
15.0
5.2
2.8