LG2 Software User Manual
- June 11, 2024
- LG
Table of Contents
LG Software
User Manual
November 7, 2018
INSTALLATION
The LG control software is available in 32bit and 64bit. Please make sure to install the suitable version. Start the installer ‘setup_lg_winXX_2.0.0.exe’ and follow the instructions.
OVERVIEW
The LG Control software is a convenient tool for controlling LG devices from
Image Engineering. This includes the HDR box for the lightSTUDIO with two
LG2/LG4 light boxes. If any of the aforementioned devices is connected to a PC
the program displays a list of serial numbers of these devices.
2.1 Identification of Devices
Devices are identified by their serial number and are listed in the program
with this number. The serial number can be found in two different ways:
- On the adhesive label attached to the housing of newer devices (since 2015)
- With the “Device manager” from Windows as shown in Figure 1:
o Open the “Device manager” and then “libusb (WinUSB) devices”
o Double click the preferred device and go to tab “Details”
o Select “Device instance path” from the “Property” menu. The last section of the string is the serial number.
2.2 No Devices Connected
If no LG2 device is connected to PC, the panel as shown in Figure 2 is
displayed.
Connect the LG2 to PC to proceed.
The same panel appears in the LG3 and LG4 tabs if no devices are connected.
You can change the control between the tree types of LG devices by selecting
the tab according to the device you want to use.
2.3 Find Devices Manually
Choose the option “Find connected devices” from the “File” menu or press “Ctrl
- F” to scan USB ports and update the display that show the devices.
LG2
Connected LG2 devices are displayed in the list ① with their serial numbers.
Select one to make it controllable in the control panel.
Note: The two LG2 devices inside a lightSTUDIO-H are controlled by one
hardware controller and appear in the list as one device.
Click lamp button “A” or “B” ② to switch on/off one of the corresponding LG2.
Change intensity value for the selected LG2 with the slider or edit the field
③. When the edit field is selected, use “up” and “down” arrow on keyboard to
change value.
All changes of the control settings will be stored during the current session
for the selected devices ① or the selected Groups/Presets ②.
The minimum intensity value is 3% for the LG2 light boxes.
LG3
Connected LG3 devices are displayed in the devices list ① with the
corresponding serial numbers.
Select a device to make it controllable in the control panel. Multiple LG3
devices can be controlled at the same time (refer to chapter 4.2).
Select saved presets in the Group/Preset list ②.
Click lamp button to switch on/off the selected group/preset or device ③.
Choose the power mode in the Mode Panel ④, the default mode is low.
Change the intensity, the flicker frequency or the duty cycle value with the
sliders or enter the values into the edit field ⑤. When edit field is
selected, use “up” and “down” arrow on keyboard to change value.
All changes of the control settings will be stored during the current session
for the selected devices ①
or the selected Groups/Presets ②.
Monitor the current luminance/illuminance values and the current temperature
of a single selected device using the source panel ⑥. This representation uses
the internal sensors.
The preview panel ⑦ provides a graphical representation of the current
intensity and flicker settings.
4.1 Operation on Devices
Open the context menu by clicking the right mouse button on any device in the
devices list ①. Select the preferred option to create a group/preset, rename
or calibrate the device.
4.2 Groups/Presets
Combine several LG3 devices to a group by selecting multiple devices from the
devices list ① and selecting „Create a group/preset“ in the context menu.
Repeat this step with modified settings to create a preset for the same group
with modified settings.
Create a preset for a single device by right clicking on a device in the
devices list ①. Repeat this step with modified settings to create a preset for
the same device with modified settings.
Turn the illumination off in order to switch between groups/presets
4.3 Operation on Groups/Presets
Open the context menu by clicking the right mouse button on any group/preset in the Groups/Presets list ②. Alternatively press “F2” to rename a group or press the “del” button on your keyboard to delete a group/preset.
For more options, click with the right mouse button in a free line of the
Groups/Presets list ②.
4.4 Calibration
The LG3 has a stabilized intensity output. To use the output feedback in cd/m²
or lux, the system needs to be calibrated. The LG3 provides two calibration
modes. Refer also to the calibration chapter of the LG3 user manual
- Luminace calibration: Luminance is a measure of the emission or reflection from a flat surface in cd/m². In the case of the LG3, the chart surface is measured, but in case of a shading measurement the diffusor plate is measured. Therefore, it is a measure of the emission in the direction towards the device under test (e.g. a camera system). Choose a reference point on the chart for the calibration. When using an OECF chart the field with the lowest density is recommended.
- Illuminance calibration: Illuminance is a measure of how much light illuminants a surface in lux.
Therefore, it is a measure of the illumination in the direction of the light source and is not suitable for a measurement on the chart.
Be sure to perform the calibration in a fully darkened room. Any foreign light
pollution will result in measurement errors. An external measurement device is
needed for the calibration of the LG3. We recommend using a Class L
Luminancemeter/Illuminancemeter.
Perform a calibration by selecting a single device from the devices list ① and
clicking the right mouse button to open the context menu. Choose “Calibrate”
from the menu as seen in Figure 6 : Devices Context Menu.
The internal Sensors of the LG3 will perform a reference measurement. This can take up to a minute.
Prepare the external measurement device and select OK.
The LG3 displays an illumination level.
- Measure the luminance or the illuminance on a suitable region with the external measurement device.
- Change the measured value (ref. Figure 11 : Set Measured Value) as read from the external measurement device.
- Click OK
Cancel the Calibration to retain the old calibration
LG4
Connected LG4 devices are displayed in the list ① with the corresponding
serial numbers and CAN (Controller Area Network) IDs. Select a device to make
it controllable in the “Control” panel. Several LG4 devices can be controlled
simultaneously as described in 5.2.
Select saved presets in the Group/Preset list ②.
Click lamp button to switch on/off for selected group/preset or device ③.
Choose the power mode in ④, the default mode is low.
Change the intensity value with the sliders or enter the values in the edit
field ⑤. When the edit field is selected, use “up” and “down” arrow on
keyboard to change value.
All changes of the control settings will be stored during the current session
for the selected devices ① or the selected Groups/Presets ②.
The preview panel ⑥ provides a graphical representation of the current
intensity and flicker settings.
5.1 Operation on Groups/Presets
Open the context menu by clicking the right mouse button on any device in the
devices list ①. Select the preferred option to create a group/preset or rename
the device.
5.2 Groups/Presets
Combine several LG4 devices to a group by selecting multiple devices from the
devices list ① and selecting „Create a group/preset“ in the context menu.
Repeat this step with modified settings to create a preset for the same group
with modified settings.
Create a preset for a single device by right clicking on a device in the
devices list ①. Repeat this step with modified settings to create a preset for
the same device with modified settings. Turn the illumination off in order to
switch between groups/presets
5.3 Operation on Groups/Presets
Open the context menu by clicking the right mouse button on any group/preset in the Groups/Presets list ②. Alternatively press “F2” to rename a group or press the “del” button on your keyboard to delete a group/preset.
For more options, click with the right mouse button in a free line of the Groups/Presets list ②.
COPYRIGHT AND TRADEMARKS
6.1 Trademarks
Windows is a registered trademark of Microsoft Corporation.
The LG software uses open source software:
libusb ( www.libusb.org ) is an open source
project, the code is licensed under the GNU Lesser
General Public License version 2.1 or later ( www.gnu.org/licenses/old-
licenses/lgpl-2.1.html ).
6.2 Copyright Information
By installing this software, you accept and agree to be bound by the terms of
the software license agreement that appears below.
Copyright © Image Engineering GmbH & Co. KG, 2018
The software furnished under this agreement is provided on an ‘as is’ basis,
without any warranties or
COPYRIGHT AND TRADEMARKS
representations express or implied, including, but not limited to, any implied
warranties of merchantability or fitness for a particular purpose. It is
solely the responsibility of the consumer to determine the software’s
suitability for a particular purpose or use. Image Engineering GmbH & Co.
KG, and anyone else who has been involved in the creation, production,
delivery, or support of this software, will in no event be liable for direct,
indirect, special, consequential, or incidental damages resulting from any
defect, error, or omission in the diskette or software or from any other
events, including, but not limited to, any interruption of service, loss of
profits or good will, legal action or any other consequential damages. The
user assumes all responsibility arising from the use of this software, for
which Image Engineering GmbH & Co. KG shall have no liability, regardless of
whether such use is lawful or foreseeable. Image Engineering GmbH & Co. KG
shall have no liability for any data or programs stored by or used with this
software, including the costs of recovering such data or programs. Image
Engineering GmbH & Co. KG reserves the right to make corrections or
improvements to the information provided and to the related software at any
time, without notice.
Image Engineering GmbH & Co. KG
Im Gleisdreieck 5 · 50169 Kerpen · Germany
T +49 2273 99 99 1-0
F +49 2273 99 99 1-10
www.image-engineering.com
Documents / Resources
| LG
LG2
Software
[pdf] User Manual
LG2 Software
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References
- GNU Lesser General Public License v2.1 - GNU Project - Free Software Foundation
- Image Engineering - Solutions to test image Quality