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hundred ns depending on camera model) negative pulse with the falling edge is used as
timing reference. Input signal is active on falling edge. (Default state is high.)
TC-Out: A positive polarity time code signal. Normally an unmodulated (dc-shifted)
IRIG-B (at RS-232 levels) which follows the internal time base of the camera. It is
recommended not to process the 'TC-Out,' since a processed signal will not represent
an accurate time code.
Auto-Trigger: Used to output a hardware trigger signal or pulse with the duration.
Software Trigger: An active high-output signal (pulse) generated as a result of the
trigger protocol command.
Recording: An active high-output signal indicating active recording into a RAM partition.
Event In: If the input is sampled low at the end of an exposure, an 'E' (Event) bit in the
frame's timestamp is set.
Memory Gate In: If the input is sampled low at the end of an exposure, the corresponding
frame is skipped from storage to RAM.
Pre-trigger: An active low-input (default high) signal. Keeping this signal low for enough
time (10—500 ms or until 'Ready' signal goes high) will make the camera start recording,
if it has an available RAM partition.
Aux Trigger: An input signal active on the rising edge (default high). An alternative
trigger input that can be processed through the pulse processor and assigned to
different ports.
THE CORE SIGNALS
Core signals are copies of externally generated signals, routed through the camera and
output to assigned ports. Unless indicated otherwise, feedback is taken after any pulse
processor for the input. Core signals can be pulse-processed before being output.
Core Event: Feedback output from the 'Event In' signal.
Core Memory Gate: Feedback output from the 'Memory Gate In' signal.
Core Frame Sync: Feedback output from the 'F-Sync In' signal. The feedback is taken
after any pulse processor for the output, but before the delay element.
Core Pre-trigger: Feedback output from the 'Pre-trigger' signal.
Core Aux Trigger: Feedback output from the 'Aux Trigger In' signal.
Core Trigger: Feedback output from the main 'Trigger' input. The feedback is taken
before the trigger signal is affected by the trigger polarity, filter or delay settings. 'Core
Trigger' can be used like the 'Trigger Out' signal.
Vision Research, Inc. | Phantom T-Series Camer a Manual
LENS MOUNTS
The default lens mount on a Phantom T-Series camera is a Nikon F-mount and many
additional mounts are available. When ordering a second mount with the camera purchase,
this one will be installed when the camera ships from Vision Research unless otherwise
specified. These are the available lens mounts:
NIKON F- MOUNT
The Nikon mount is compatible with manual aperture lenses and G-style lenses. A
mechanical lever on the front of the mount allows for manual adjustment of the aperture on
G-style lenses.
CANON EF- MOUNT
The Canon mount works with electronic EOS lenses and allows for remote software based
control of aperture and focus on compatible lenses. T-Series cameras use the same Canon
mount as the Flex4K, part # VRI-MNT-F4K-EOS
PL- MOUNT
A PL mount may be required for certain large, heavy lenses and to take advantage of unique
Cine-style lens options. These cameras use the same PL mount as the VEO4K,
part # VRI-MNT-VEO4K-PL
Chapter 8: Accessories | 41
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