Tamron MP3010M-EV, Техническое справочное руководство

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3.11 Slow Shutter Limit
It limits the longest shutter time when slow shutter auto mode is active.
It uses Register Setting command and parameters are the following ;
CAM_Register Value command :
Addr = 0x7C
Val = 0 : 1/4 sec (default)
1 : 1/1 sec
2 : 1/2 sec
3 : 1/3 sec
4 : 1/4 sec
5 : 1/6 sec
6 : 1/8 sec
7 : 1/12.5 sec(25/50 fps mode) or 1/15 sec (30/60 fps mode)
3.12 Gain Limit Setting
The gain limit can be set at the Full Auto, Shutter Priority, Iris Priority mode.
Use this setting when image signal-to-noise ratio is particularly important.
MP3010M-EV has max. 54 dB gain. If you limit the gain by Gain Limit to lower gain like
28 dB, you will get better signal-to-noise ratio.
3.13 Aperture Control
When shooting text, this control may help to increase readability by making them
sharper. There are 16 steps of adjustment. The factory default is level 8.
Level 0 is edge enhancement off. Data can be set using Direct Command or Up/Down
command in CAM_Aperture Command.