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Features
1080i, 2.2-megapixel CCDs employed
• The standard sensitivity is F11 (F12 with 50 Hz). High sensitivity is
also achieved.
Furthermore, it can operate at 1080i (50 Hz/59.94 Hz switchable).
Digital signal processing with a 16-bit A/D converter
• A 16-bit A/D converter with a sampling frequency of 74 MHz converts
the video signals into digital signals to reproduce fine and high quality
images.
Chromatic Aberration Compensation (CAC) function
• This unit is equipped with a function to compensate the chromatic
aberration of the magnification of a lens caused by the fact that
the refractive index of a lens varies with the wavelength of light
(hereinafter referred to as the chromatic aberration).
The chromatic aberration of the magnification is caused by the
differences in the red (R), green (G), and blue (B) refractive indexes of
a lens. The lens itself corrects chromatic aberration but it remains, in
particular, in the surrounding area. Furthermore, the zooming ratio, iris,
and focal distance have a complicated relationship with this chromatic
aberration in the case of a zoom lens. Images have registration errors.
Frame frequency setting
This unit is shipped with the frame frequency set to 59.94 Hz.
Before using this unit, follow the procedure below to change the setting to the frame frequency to be used.
1.
Connect the viewfinder to this unit (→ page 14), or connect
the camera HD-SDI output2 connector <HD-SDI2> to the
monitor (→ page 11)
<Note>
For the details on the CCU settings, refer to the Operating Instructions
for the CCU.
2.
Connect the optical fiber multi cable or DC power supply
to this unit.
For details on the menu operations, refer to page 21.
3.
Turn on the power, and then press the menu switch
<MENU>.
The [USER MENU] screen appears.
4.
Turn the <SELECT> JOG dial button to move the cursor
(arrow) to the [MAINTENANCE] item, and then press the
<SELECT> JOG dial button.
USER MENU
OPERATION
MAINTENANCE
＞MENTENANCE
B
G
R
Using this function enables the chromatic aberration around the lens
to be compensated and high quality video signals to be obtained.
However, a lens supporting chromatic aberration compensation must
be used.
Digital extender function
• This function extends the image to twice its original size in the digital
signal processing circuit. It enables shooting at a higher magnification.
This function can be assigned to the assignable switches <USER 1, 2,
and 3> and the external return control switches 1, 2, and 3.
Film-like gamma function
• In order to facilitate obtaining film tone in VariCam (AJ-HDC27 series),
this unit is equipped with FILM-REC gamma that is almost equivalent
to VariCam.
DRS (Dynamic Range Stretcher) function
• With this function, the dynamic range can be extended by compressing
video signal levels in a high-brightness area while maintaining contrast
to prevent blown out highlights that may occur in normal shooting
situations.
Optical digital transmission
• High-quality uncompressed digital transmission is made possible by
connecting this unit to a camera control unit (CCU) with an optical fiber
multi cable. Furthermore, prompter and return signals input into the
CCU can be output from the camera.
5.
Turn the <SELECT> JOG dial button to move the cursor
(arrow) to the [SYSTEM] item, and then press the
<SELECT> JOG dial button.
MAINTENANCE
MENTENANCE
SD CARD R/W
｜
＞ SYSTEM
6.
Turn the <SELECT> JOG dial button to move the cursor
(arrow) to the [FORMAT] item, and then press the
<SELECT> JOG dial button.
7.
Select [59.94i] or [50i] with the cursor (arrow), and then
press the <SELECT> JOG dial button.
The frame frequency setting is confirmed.
SYSTEM
＞ FORMAT
｜
8.
Turn the power of this unit off and then back on.
５９．９４i
7
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