White Paper 034 Addendum 44 (rev 1): Tests and Settings on a Toshiba IK-HR1 minicamera

Alan Roberts

Abstract

Data for this section is taken from the handbook and a very brief examination of Toshiba IK-HR1S and IKHR1D mini-cameras as part of a group test of HDTV mini-cameras. The cameras are self-contained, there is no separate control unit, all controls are on the camera.

The cameras are small (44x44x78mm) and weigh only 146 grammes. The specification states that they have a single CMOS sensor of 2.1Megapixels, which must be Bayer-patterned and is probably 1920x1080 pixel count. The lens mount is the mini-cam standard C mount. Sensitivity is claimed to be F/4 at 2000lux, which is typical of single-sensor 1920x1080 cameras with ⅓" sensor. The HR1S has only HSDSDI output, the HR1D has only DVI output which also carries analogue outputs as VGA. There are menus, allowing some rudimentary image control, which have great similarity to those in the IK-HD1 mini-camera.

Power consumption is 3.5 watts at 12V DC for the HR1S, 4.2 watts for the HR1D. Tests were made only on the HR1S, since the DVI output of the HR1D is difficult to use in a broadcast environment. However, the HR1D does provide output at 1080p/59.94, and so could be useful under special circumstances. The differences between the cameras are small, and the measurement results should apply equally to both cameras. Differences between them are noted in the menus. Unfortunately, the cameras show significant response to infra-red illumination. This revision corrects minor errors which do not affect the measurements or conclusions.

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