3MP And 5MP Low Light Performance Equal?

Mainstream megapixel cameras predominantly use 1/4" - 1/2" sensors in the 1-5MP range.

Most people will agree that 5MP cameras perform worse than 3MP cameras (which are now very much mainstream) in low light because the sensor size is typically around 1/3" for both resolutions which means the pixels on the 5MP sensor are much smaller and hence less sensitive to...

**** ******** *** ********** ** ******'* **** *** (*******) *** 3MP (******) ******* *** *** ************ ******, *** *** **** a ********* **********:

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***** ****: *.*μ* * *.*μ*

************: *.***/***-***(*****)

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***** ****: *.*μ* *-***

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******* ****** *** ****** ** **** *** *** ************* ****** at */*.*",the *** ***** **** ******* *** *** *** *** *** *** ******* *** *** ****. Now the 3MP sensor does on paper have a slight 6% sensitivity advantage at 1.9v vs 1/76v - but this is only because the AR0331 is 1 year newer and uses Aptina's next gen A-Pix pixel structure that allows more light to hit the pixel.

*** **********'* *** ************ ****** ** * ************ ***** */*.*", and * ******* **** *** **** ** *** ******** (*/*.*") and **** (*/*.*") ******** ***** **** ** *** **** ***** chip ***** ** **** **** * ***** ***** *** ******. In **** **** ***** ** ****** ****** *** *** *** light *********** ** *** *******

*******, *******, *******, *****, *********, ********* *** **** ****** *** using *** ****** */*.*" ****** - ** ***** *** ***** performance *** *** ** ** **** ***** **** *** *** products.

*** ****** * ** ******* ***** **** ** *******, ** the ****** ** ***** *** (**** ********** *** ** *** outdoor ******* **** **** *** ** ************ ********) ***** ** a ***** **** **** **********'* */*.*" *** *** ****'* */*.*" 2MP ** *** ********* ****** ****** ****** *** - ******* the ****** **** *****/****** ******** ***** *** *** *** ******* light *********** - ** *** ***** ** *** **** ***** for ********** (***** **** *** *********) *** ************* (***!) *******.

** **** *** **** ** *** ********** ******* **2.2μm pixels while maintaining the same low light performance one begins to wonder if it would be wise to start investigating the use of 5MP 1/2.5" products which potentially have the same low light performance.

*** ****** ******** ***** */*.*" ****** *** ******* ** *** field ** ***** *** *** ***** *********** ** ** ********** acceptable?

[**** ******'* ****: * ***** ***** **** **** ******* *** been ******* ******* ** ** **********.]

*** * **** *.*** */*" ******* *** ***** **** *** night ****** *** *** **** **** *** ******.

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*****, * ******* **** ********* ** *** **** ******* **** as ********** ** **** ******. **** *********, **** **** ***** was *** ***** *** ****** *** *** ********* ** ****. Also, **** **** *** *** * ******** *** ****** *** be **** *** ***********.

**********, * **** ***** ** ** **** ** *********** ** the ****** ** ***** *****, ***** *** *** ***** ******* involved, ** *****.

***** ***** ******, *********** ** **** ******* / *********** (**** Axis's ***********) *** **** *-**** (**** *** *** */*.*, ****** use */*.* ** **** */*.*) **** **** * **********.

** *** **** ** ***** * ******** *** ** ****** look ** **** ******** ****** ** **** **** ** ****.