Help Please tell me what this means

JackW wrote on 6/30/2016, 11:08 AM
I've just gotten video camera specifications for a job we're bidding on. The first part is easy:

"Color Digital Video Images. Capable of producing NTSC or agreed upon format with 1080 lines/60 fields of color digital images."

It's the second part that has me stumped:

"Resolution: The Y channel must contain a minimum of 500 TV lines at center, utilizing no less than three charge-coupled-device (CCD) chips, with a minimum of 5 megapixels for optimum picture clarity."

I understand the "three CCD chip" part, but not the Y channel part of the requirement. Don't know whether our NX5U cameras qualify.

Thanks for your help.



Tim L wrote on 6/30/2016, 12:25 PM
It's probably a spec that should be updated. Your NX5U fails the "3 CCD" spec because it has 3 CMOS image sensors, not CCD.
VideoFreq wrote on 6/30/2016, 12:31 PM
I am not a television product producer, but I believe this to be an analog SD spec. if you have an HD 3-chip CCD camera, then you should have at least 800 to 900 lines of Y "luminance" resolution already. If the raw video output needs to be around 500 TVL Min, you should be able to set the camra output to SD to achieve this. I would just do HD. It says 500 TVL min.
OldSmoke wrote on 6/30/2016, 12:39 PM
Here is an interesting read.

I wouldn't bother too much about the 3CCD spec, its certainly a very old one. The very few 3CCD cameras that are still around and HD are very expensive.

Proud owner of Sony Vegas Pro 7, 8, 9, 10, 11, 12 & 13 and now Magix VP15&16.

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JackW wrote on 6/30/2016, 4:31 PM
Thanks, all. This has turned out to be a very complex situation. Specifications have been dictated to the contractor by a municipal government and obviously drafted by someone who has lots of jargon on hand and very little information to go with it.

ushere wrote on 6/30/2016, 7:10 PM
oh dear, another mba writing specs ;-)
JackW wrote on 7/1/2016, 12:39 AM
Leslie you're right! One of the specs demanded that the camera lens be "at least 12 feet above grade for all shots," another that when shots are taken from a moving vehicle it must not be moving faster than 80 feet per minute, "to assure optimum resolution."

Neither I nor the engineers have figured out how to keep the camera at this height along a 10,000 foot long rail construction site and truth be told we're not trying very hard. And 80 feet per minute!!

The acronym for jobs like this is TYMAR -- take your money and run.

Thanks again.