Ikegami has announced a new addition to its range of broadcast quality television
cameras. The HDL-57 is a compact high-definition camera designed for use on
remotely controlled pan/tilt heads in applications such as parliamentary television
or robotic studios. The camera will be demonstrated on the Ikegami stand (11.A31)
at the International Broadcasting Convention (IBC) in Amsterdam, from 11 to 15
September.
The HDL-57 can also be used wherever a high-grade, fixed-position, compact camera
is required for intercutting with the output from full-size studio cameras. The camera
head and controller are housed in a single robust rectangular unit measuring 90 x
103 x 180 mm (width x depth x height) and weighing 1.5 kg. The HDL-57 can be
operated remotely or via its rear control panel.
Three advanced 2.5 megapixel 2/3 inch CMOS sensors are employed to deliver wide
dynamic range and, in principle, no smear. Each sensor incorporates active
processing circuitry and delivers a digital output to the camera’s digital signal
processor, all in a very small device with low power consumption. The sensors are
equipped with native progressive and interlace modes. 1080/59.94i, 1080/50i,
720/59.94p, 720/50p and 1080/23.98p are available from the camera head.
1080/23.98p output is available as an option.
Full digital processing is employed within the HDL-57, from imagers to HD-SDI
output, delivering high signal integrity and high picture quality as well as stable and
reliable operation. Master gain is processed through a high-grade low-noise
amplifier with negative feedback. Video noise cancellation circuits deliver images of
wide dynamic range even at high gain level. Specified performance parameters
include F11 at 2,000 lux sensitivity, 60 dB signal-to-noise ratio and 1,000 television
lines resolution in 1080i format (700 TVL in 720p format).
Among the operating features of the HDL-57 are a six-position switchable gain (0 to
+30 dB), six electric shutter speeds (1/100 to 1/2,000 second), a four-position optical
filter (100, 25, 6.2 and 1.6 per cent) and a two-position electronic colour correction
filter (3,200 and 5,600 K). The optical filter wheel is motorised and can be operated
from Ikegami remote control panels such as the RM-50B and OCP-300. Using these
filters in combination, the camera can handle a very wide range of lighting
conditions. Auto-white-balance mode is available to cover the full range of colour
temperatures.
The Ikegami HDL-57 operates on 12 volt DC power (11 to 16 volts), consuming 18
watts or less. It delivers two HD-SDI outputs and has a reference signal input
accepting tri-level HD sync.
