Shutter Speed / Exposure Tutorial

Author: John Honovich, Published on Nov 28, 2016

Surveillance users do not need to be photography experts but understanding the basics of shutter speed is critical to avoiding major low light problems. In low light conditions, surveillance video can appear blurry and objects will look like ghosts - all due to issues with exposure.

Here is an example:

In this tutorial, we explain the role of exposure and setting shutter speed has in surveillance including a 5 minute video screencast to show you the key issues in action.

************ ***** ** *** **** ** ** *********** ******* *** understanding *** ****** ** ******* ***** ** ******** ** ******** major *** ***** ********. ** *** ***** **********, ************ ***** can ****** ****** *** ******* **** **** **** ******- *** *** ** ****** **** ********.

**** ** ** *******:

** **** ********, ** ******* *** **** ** ******** *** setting ******* ***** *** ** ************ ********* * * ****** video ********** ** **** *** *** *** ****** ** ******.

[***************]

Shutter ***** / ********

*** ***** ******* ***** *** ******** *** ***** **** ***************, but *** *** *********** *** **** *****.

******* ***** ****** ** *** **** *** ****** ** ******* to *****. ******** ******** ** ******* ***** ('*** ****') ******** with **** *******('*** ****'), *** ** ***** ****** **** ** **** ******* speed, ******* ** *********.

** **** ********, ** ***** ** ******* *****. *** ******* on **** *** ********, *** ******* **** ******** *** *-**** ********.

Automatic **. ****** ******* *****

************ ******* ****** *********** ******* ** ********* ******* ** *** shutter *****, ******* **** *** ****** **** ******** ** ****** its ***** ******* *** ************ ** *** ****. ** **** bright ******, ******* ***** **** ** ******, *** ** ** is ***** ****, *** ******* ***** *****.

***** ********* *** *** ******* *** ******* ******* ****** ** better ******* *** ****** *** ****** *** **** *** ********. However, **** ** *** ******** ******** ****** ****** *** ******* or ************* *** **** ******** (**** ** **** ******* / sens-up, ** ****** *****).

** ****, ****** *** ******* *** ********* ******* *****, *** ****** settings *** ***** **** ** **** ********** ************ **** ********* ***** ******* / ************** ******* ******.

Range ** ******* ******

******* ****** *** ***** **** ********* **** (*/*,***, */**,*** ** a ****** ** ****) ** ********* **** (*/* ** * second ** ****). ***** ****** *************, ***** ******* ****** *** controlled *************, **** ******* ****** ****** **** ******** *******.

*******, **** ***** **** * ******** **** ******* ***** (**** as */** ******), ****** **** *** ** ***********, ********* *******. The ********* ***** **** ****** ****** ******, ********* ** ***** level, ****** *****, *** ***** *********, **** ** **** *** fast **** *** **** ** *********** "*** ****,."

**** ***** ****, ** ******** ********* ******* ***** ******* ****** slower **** */*** ** ****** *** *****, ** **** ** likely **** ** **** ****** *******. 

Exposure ** ******

***** *** * ****** ***** ***** *** ************* ** ********* shutter ****** *** ******* **** **** ******* ********.

Fixed ******* *****

** ******* **** ***** ***** ******** ******** *** ****** *** shutter ***** ** * ******. *******, ** ** ************ **** ****** ** **** ******** ************.

*** **** ****** ************ *********** *** ***** ******* ***** ** license ***** *******. *** ****** ***** **** *** **** ****** in * ******* ***** ******* ***********, ***** ******* */*** ******* speed *** */**** *******. ***** ********, **** ** **** ****** (<10 ***) *** ****** ** ****** ** ******* *** *****, while ** */****, *** ***** ** ******* *******.

Manufacturer ******

** ****, **** ************* ***** ***** ******* ** ************* ****** shutter ** ** **** ** */*** ** *******. *******, ***** beware: **** ************* ***** ******* ** ****** ******** ***** *** cause *********** **** ** *** *****. *** *** ****** **** ******* / ******** **** *** *******.

************, ************* *** *** ***** ********** ***** *********** ****** ** slow ******* ** ********* ***, **** ****** **, "***********", ** ***** ***********. ***** ****** ****** ** ***** *****, and **** ** *****, ******* ***** ******** ** *** *** performance *******.

Other **** ******

***** ****** **** ****** ** ***** ******** ** ** ******* which *** **** ***** ****. **** ****** ********* ***** ********* (***)**** ** *****'* ***** *** ***** ******* *** ********* ****. ************, true**** ******* ********** ********* ****, ** ****, ** **** ******* ******** ********* to ******** *** *** *****, **** ***** ********* *******. ***** issues *** ****** **** ******* ** ******* ****, *** **** *** **** different ******. ******* ** ****, *********** *** **** ** ****** ******* settings ** ****** **** *** **** *******.

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