Help - Nightclub Image Quality Problems?

Hi, I'm not an installer but law enforcement to do with licenced premises in London UK. I been viewing a brand new very expensive IP system with megapixel cameras. I've noticed that frequently, recorded footage in the nightclub shows persons bleached out white as if there are problems with the auto iris. As usual in a nightclub, its a mixture of low light, bright light, strobe and neon etc....

********* **** ******** ** ** ** ********** ***** **** **** analogue *******. ** ******** **, ** **** ****** **** ** cameras? ** ***** * ******* **** ******** *** ********** ********* to **** ** **? *** *** ******** *****? *** ********* Manager ** ** ****** ** ** ********** *** **** ** behalf ** ******. *** * ***'* ***** *** ************. **** do *** *****? ******.
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****** **** ** *********** (**** ** *** ****** ** ***** added ** **** **** *** ***** *****?) ***** ** * subject ***** ** ***** ** *** ****** -- ***** **** need ** ** ******** *** * ***** ***** ******* ****

***********, ** **** ********, ******** #* **: ** *** ******* have ***** **** ************?

**** *** ******* **** ******** **** ****?

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*** **** ****'* ** ******* *** ****** *** **** ******* shows *** **** ****** *********** ***** * ******'* *** ** the **** ****. *** ****** ** ** *** ******* *** particularly ***** *******, *** ******* ********** ******* ***** ***** **** at *** ******.

**** **** ****** **** *** ****** ** **** ******* ****** with ******* ***** ** *******? ** **'* **** ******* ******, it ***** ** **** ***** ******* *** ****** **********.

** *** **** *****, *'* ***** ** *** ** *** cameras **** *** *** ** ***** *** ** ************ ******. Maybe **** *** ** ******* *** ** ************ *** *** which ** ******. ***** *** *** *** ****** * *** think ** **** **** *** ******* ****** ** ********* *********.

** *** **** **** * *** ** ********** (**), ****** wearing ***** **** **** ** **** * ****** ********-***** - someone ******* * ***** ***** ***** ********* **** ** *****-****** on *** ******.

** **** *****, ******* **** ******* ** *** ******* **** and/or **** ****** ********, ********** ** **** ********.

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