Vaddio Sony EVI-HD1 PTZ Camera - Manual (Page 8)

8
Basic Functions
Basic Functions
Zoom
The camera employs an 10
× optical zoom lens
combined with a digital zoom function allowing you to
zoom up to 40
×.
Lens specifications: Optical 10
×, f = 3.4 to 33.9 mm
(F1.8 to F2.1)
The horizontal angle of view is approximately 70
degrees (wide end) to 8 degrees (tele end).
Digital Zoom enlarges the center of the subject by
expanding each image in both the vertical and
horizontal directions. When 4
× digital zoom is used,
the number of effective picture elements in each
direction reduces to
1 /
4
and the overall resolution
deteriorates.
You can activate the zoom in the following two ways:
• By pressing the T (tele) or W (wide) buttons on the
Remote Commander.
• Using a VISCA Command
Using Standard Mode
Using Variable Mode
There are eight levels of zoom speed.
Direct Mode
Setting the zoom position enables quick
movement to the designated position.
Focus
Focus has the following modes, all of which can be set
using VISCA Commands.
• Auto Focus Mode
The minimum focus distance is 100 mm at the optical
wide end (extreme close-up settings with VISCA
control) (distance from the front end of the lens).
• Manual Focus Mode
MF (Manual Focus) has both a Standard Speed Mode
and a Variable Speed Mode. Standard Speed Mode
focuses at a fixed rate of speed. Variable Speed Mode
has eight speed levels that can be set using a VISCA
Command.
To stop the required operation after sending a
Standard Speed command or a Variable Speed
command, send the Stop command.
• One Push Trigger Mode
When a Trigger Command is received, the lens
moves to adjust the focus for the subject. The focus
lens then holds the same position until the next
Trigger Command is input.
• Infinity Mode
The lens is forcibly moved to a position suitable for
an unlimited distance.
• Near Limit Mode
Can be set in a range from about 3 m (2000) to 10 cm
(7600).
The focus range is narrowed by excluding the
unnecessary range.