Roundshot VR Drive - Page 131

23/05/2019Roundshot VR Drive Instruction Manual – Firmware Version 2.023 130
6.7 Using the VR Drive light meter (continued)
In edit menu, click on “auto exposure settings” to access the automatic
exposure settings menu of the VR Drive.
Click on “auto exposure” to activate the
automatic exposure functionality with
light meter sensor.
Then set the following parameters:
• Variation strategy
• ISO/ASA when this is to be defined
manually
• Aperture when this is to be defined
manually
Auto exposure settings
auto exposure
off
Variation
strategy
ISO/ASA
100
auto exposure
settings
Aperture
8
Auto exposure settings
auto exposure
on
Variation
strategy
ISO/ASA
100
Aperture
8
HDR steps / page 1
f-stop (-2)
Servive menu
f-stop (+2)
average
In HDR mode, after setting the exposure strategy and the
corresponding parameters manually, the VR Drive shows the HDR
sequence without definite exposure values.
In this example 3 bracketed images will be taken: Average exposure
time, +2 f-stops and -2 f-stops.
The definite exposure values are not displayed as they will be adapted
according to the light meter measure when starting a program.
When editing an existing quality or HDR program it is possible to activate the auto exposure
function and adjust the strategy parameters:
Many parameters, such as camera performance or light conditions, can influence
image quality. Moreover, some projects might have duration or speed limitations. It is
therefore possible to set absolute maximum and minimum values for the 3 auto
exposure parameters.
In the “Settings”-> “General” menu click on auto
exposure ranges
It is possible to define the maximum and the minimum
value for the following parameters: ISO, aperture and
Exposure
This prevents the VR Drive from selecting extreme
values to adjust the camera to the current light.
The VR Drive will never select values outside the
defined range. A warning will be displayed if the light
condition leads to out of range combinations.
speed
16/20s
acceleration
15%
auto. exposure ranges
speed
16/20s
min. ISO
max. ISO
speed
16/20s
acceleration
15%
speed
16/20s
min. aperture
max. aperture
speed
16/20s
acceleration
15%
speed
16/20s
min. exposure
max. exposure
auto. exposure
ranges