White Paper 034: Addendum 5: Menu settings for BTS/Thomson Multi-media LDK6000

Alan Roberts, Richard Salmon

Abstract

This camera is not a camcorder, but of the conventional studio type,triax connected to a conventional ccu. It has many interesting anduseful features. The camera closely resembles other, small studiocameras. It has the usual shoulder pad that makes it operablehand-held, and is no bigger than a conventional camera.

The camera is designed to operate on the 1080-line standards, but isintended to operate also on the 720-line progressive standards, andeventually on a 1080-line progressive standard. The ccds are 1920pixels by 4320 rows, each with a 4:1 aspect ratio. To operate at 1080lines pro-scan, rows are added together in groups of 4. For 1080 lineinterlace, the grouping is in sets of 8, phase shifted by 4 fouralternate fields. Grouping in sets of 6 gives 720 pro-scan and so on.Derivatives of this camera may well be manufactured under differenttype numbers (maybe LDK7000, and certainly Viper Filmstream). In theform tested, it produced simultaneously HDTV and SDTV outputs. It canuse either HDTV or conventional SDTV viewfinders and monitoring. It canoperate in a mixed environment, simultaneously feeding HDTV and SDTVprogramme switchers but under single control. Control of the camera isby conventional OCP and MCP (Operational and Main Control Panels), andis little different from any conventional SDTV studio camera. Oneuseful feature is that the aperture correction can be set separatelyfor HD and SD outputs, the HD settings apply equally to the HD and SDoutput, but a separate AK is used for the SD output. Thus the cameracan be optimised for HD images, but the SD feed can be optimisedindependently.

Transfer characteristic (gamma, black stretch and knee) can be setconventionally, and a good ""film-look"" can be obtained forpost-processed production. There is a ""Black Press"" option whichproduces a good ""film-look"" directly from the camera.

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