Day / Night Camera Tutorial

Author: John Honovich, Published on Jul 29, 2012

Day / Night cameras are very popular but not often understood. In this tutorial, we explain what makes a 'true' day / night camera, break down the role of a mechanical cut filter, share a 5 minute demonstration video and compare day / night cameras to color only, electrical D/N, dual imager and IR cameras.

Mechanical Cut Filter

*** *** **** ** * ***/***** ****** ** *** ********** cut ****** ****** ** *** ** *** ******. ** *** image ***** *****, ** ****** ** ** ****** ** **** back *** *****.

cut filter

**** *** **** ***** ******, *** ** ****** ** ***** in ***** ** *** ******, ******** *** ******** *****. *******, if ** ** **** *** *** *** **** **** *****, the ** ****** ** ***** **** **** *** ****** ** that ** *** ******* ******** *****. ****: ***** ** ********* infrared ***** ** **** ************, **** ** ** ** *********** is ** (*** ************ ** ******).

****** *** ***, *** **** ** ******* ** ***** ******* color ****** *** ******* **** ** ********, **** ** *** color ***** *** ************ **** *****:

*******, ** *****, **** ******* ***** ** ****, ******** ** light ***** ******* **** ******* *** ***** & ***** ******.

*********, *** ******* *** ***/***** ******* ** ** ************* ****** from ***** ** ***** & ***** **** **** ******* ***** is ************. *************, *** *** ***** *** ****** ** **** just ** *** ** *** *** *****. **** ************* **** (from *****) ***** ***** ******** *******:

standard d/n

*******, *** ***** **** *** ***/***** *** **** *** ********* be *********. **** **** ************* ******* *****. ******* ** ****** options *** "*****" *** "**********" ** "***** / *****" ** is ******** ****, ****'* ******* *** ****** ** *** ****** "On" ** "***". ***** **** *** *********** *******, ** ****** the ***** ** ********** *** *** ******* **** *** **** with * ****** ******** (*.*. '***' '**'). ** *** *** the ** *** ****** "**", ** **** ** ******* *** you **** *** ***** ****; *************, ******* *** ** *** filter "***" ****** ** ***** ** **** *** **** ***** and *****.

day night axis

Example ** ***** ** */* *****

**** ********* ******* *** *** *****, ***** & ***** ******* more ***** (*.*., ******** *****) **** ** ******* ** ***** mode. **** ***** ******* * ****** ***** ***** ******** *** demand *** **** **** ******* (***** ****** ******* *****). *********** ***** ********** ***** ****. *** *******:

color vs bw

**** ****** *** */* ***** *** **** *** ****** ** light, ** ** ** ********, ** *** **** **** *** color *****.

Advanced ******* *** ** ****** *****

*** ********* ***** ***** ***/***** ******* ** ****** ********* * advanced ******* **** *** ***** ***********:

  • ****** *** *********** *** *********: **** ****** ****** ** **** ****** ** ***** ** black *** ***** ****. *** *** *** *********** ***** ** accomplish ****.
  • *** * ******** *** ***/*****: **** ****** *** ****** ** **** ** *** ****, regardless ** ********* ******** ******* ***** *** ** ********** ** you ****** ***** ****** ** ******** *******.  **** ** *** need ** ** ******** ***** *** ****** ** ******* *** differences ** ******** **** **** *** ******** *** ********** ***.
  • ****** ** **** ********: ******* **** **** ******** *** ***** ** ****** ** re-focus *** ****** **** ********* ******* *** *** ***** *****.

**** **** ** ***** *** * ****** ***** *****:


Vs ***** **** *******

***** **** *******, ********* **** * ***** ** *** ******. The ****** ** **** **** *** ********* ~$** **** **** equivalent ***/***** *******. *******, *** ***** *********** ** ********* ************ worse. ******, ******* ** *** ***** ***** ******* *** *********** performance ********, **** **** *** ****** ***** **** ***** ***/***** models **** ** ***** **** ********. ******* *** *** * new ******, ***** ******* ** ** ***/***** ** ***** ****.

Vs ********** */*

*** ********* ****** ** *** '**********' *** / ***** *******. This ** **** ***/***** ** *** ** *** ****** ******* fixed *** *** ****** ***** ** ********** **** ***** ***********. It ********* **** *** **** ***** ** *** *** ***** performance ** * **** ***/***** ****** **** * ********** *** filter.

electrical d/n

Vs **** ****** *******

* *** ************* ***** ****** **** *********** *** ******* ***** inside - *** ** ***** *** *** ***** ***** *** white, **** **:

dual imager

*********** ** ********* ****** **** * ***/***** ***** ** **** imagers *** ** ********* **, ************, *** *** ***** *********. However, *** *********** ******** ** ********* ****** *** *** **** is **** ****** ** * ****** ****** *** **** ** needed. ******* ** ****, **** *** ******* ***** ** *** marketplace. *** *** ********* **** **** (** * *******) *** if *** *** *** ********* **** ***/*****, **** ******* ****** be **********.

Vs ****** ******** ***** **** *** */* **** ********

* *** ************* (**** ******* *******) ***** *** **** ******* in ***** **** *** ***** & ***** **** ********. *** upside ** **** *** ******** ******* *** *** (** *****) while ********** **** ******** ** **** ****** *******. *******, **** forces *** ***** ** **** ***** ** ***** & *****. For ********, ***** **** ******* ***** ******* **** ******* ***** time *****, ** ***** ** **** ********* **** ****** *** day. **** ** * ***** ****** *** **** ******.

Vs ** *******

*** **** **** ** *** ******* **** ********** ** ************. Often ***** *** **** ***/***** ******* **** *** ** ** LEDs ** ***** *** ****** ** ***** ********* ** *****. See ****/* ** ** ****** *********** ****.

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