Tested: Video Quality vs Dome Bubble

Author: Ethan Ace, Published on Dec 11, 2014

Often, industry professionals will warn about three problems with using domes:

  • The dome bubble degrades image quality
  • The degradation is worse with megapixel cameras
  • The degradation is worse through the side of the dome bubble rather than the center

But is this true?

We tested six cameras from four different manufacturers in multiple scenes, through both the center and side of the dome to find out.

We answered these key questions:

  • How much practical impact do minidome bubbles actually have on image quality?
  • Do different regions of the dome vary in the resolution they can deliver?
  • Do they impact multi-megapixel cameras more than typical HD 720p/1080p cameras?

*****, ******** ************* **** **** ***** ***** ******** **** ***** domes:

  • *** **** ****** ******** ***** *******
  • *** *********** ** ***** **** ********* *******
  • *** *********** ** ***** ******* *** **** ** *** **** bubble ****** **** *** ******

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

** ****** *** ******* **** **** ********* ************* ** ******** scenes, ******* **** *** ****** *** **** ** *** **** to **** ***.

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

  • *** **** ********* ****** ** ******** ******* ******** **** ** image *******?
  • ** ********* ******* ** *** **** **** ** *** ********** they *** *******?
  • ** **** ****** *****-********* ******* **** **** ******* ** ****/***** cameras?

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

Key *******

*** **** *******, ***** *** *****, ***** *** ****** ********** in ********* ***** ******* **** **** ** ****** ***, ** either ****** ** **** ****** ** ****. **** **** **** text *** **** ******* **** *** **** **.

*** *****-********* *******, **** ** *** **** ** **** ****, image ******* *** ********** ******* **** **** **, **** **** details **** ** ***** **** **** ********* ** ****, ****** facial ******* **** *******.

***** ******* ******* **** *** ****** *** **** (****) ** dome *** *******, **** ** ********* ********** ** ******* *********. 

***** ********

******* **** **** ******* **** ***** *************, **** ******** *** **** ****, we ***** **** ***** *** ****** ********* ********** ** ***** ******* with *** **** ** ****** ***. ** *** ***** *** 720p ******* ******, ******* ********* **** ****** *** ****. 

*** ********** ***** ***** ***** **** ******* **** ** ****, ** a ~25' ********** ***** ** ****, **** *** *** *** ******* the **** **, *** ****** *** ***.

***** ***** ** ****

******** *** ***** ** ****, ******* **** **** ** *** off *** ***** ******* ** *** ****/***** *******. **** ** one ********, ***** **** *** **** *****, **** ******* ******* with *** **** **, **** ****** *** **** ***** ******* harder ** *******.

Effects ** *****-********* *******

****** *** ********** ******, ** *** **** ******, ******* **** slightly ******* ** *** ****, **** ***** (~*/*" ****) **** more ********* ** *******, ****** ****** ******* ******* *** ** very **** *** (~***).

*** **** *** **** ** * ***** ***** ** ****, ~77 ***, **** ****** ******* *******, *** ***** **** **** difficult ** **** ***.

Dome ****** ****** ****

***** *** ** ********* ********** ******* ******* ******* ******* *** ****** of *** **** *** ***** ******* ******* *** ****.

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

** **** ** * **** *** **** **** **** **** here:

 

Comments (19)

****,

**** *****'* **** **** **** *'** *****. ***** ** * noticeable ********** ** **** ***** **** *** ****** ** ****** with *** ****** *** ** **** ************. *** ********** ** exacerbated **** "****" ****** *** ***** **** ***** ******* *** edge ** *** ****. *** ***** *** ** ******** ** focusing ******* *** ****** *** **** ** * **** ** handle.

**** ************* (********* ************ *** *******) ******* * "***** ****", which ** ********* * ***** ******* ** * ******. ***** that ** ********** **** ***** **** **** *** ** *****'* always ********* ******* ***** **** *** ****** **. * ******* that *** ** *** ** ****** *********** ** ****-**-****** ******** and ****** ** *** **** ****** ****** ** *** ***** tool.

******* **'** **** "*****" **** **** *** ** *** ** optimize ***** ****** ** *** ****** *************, ********* **** *** focus. ** ***** * ********** **** ********** ** **** **** values *** *****, ****** *****, ******** *** ***** ****** ** absolutely **** ** ***. * ***** ***** **** *********** ***** is * *** **** ********.

"***** ** * ********** ********** ** **** ***** **** *** bubble ** ****** **** *** ****** *** ** **** ************."

*** *** ** **** ********? *** ******* '**** ******' *** edge ** ****? *** **** ** * ****? **** ******** models **** *** ***** ********? *** *** ***** ******* ******* or ***** ***** ****, ***.

** ****** *******, ** *** *.*-*.***, *.*-**** *** *-**** ******. While ***** ** ******, ** ***, ***** ********** ****** **/*** with *** *.*-*.*** ******, *.*-**** ****** ******* ************* **** *********** as ** **** ** *** *-**** ****** *** **** *****. Also ** ** **** *** *** ****** ** ********** (******* the *** ** *** ****), *** ***** ***** ***** ** get **** **********. ** ****, ** ** **** ******* ****, the ********** ******* ****** ** *** ****** *** ******* **** pronounced.

** ** *******, ** ********* *** ***** *.*-*.***, ******* *.*-**** and ******* *.*-*** *** *-**** ******. ** **** ******** *** same ****** **** *** ** ******. ** *****'* ***** *-**** or ***** **** **** ***** ****** ****** ** ** ******* yet.

*********, **** ** *** * ******* **** ***** ****/***** ****** since **** *** ** ******* **** *** ****** **. *** tests *** **** ******* *******.

* ********* *** *** *** ***** **** *** *** ******* lenses, ********** ****** ****. *** ***** **** **** ************ ******** lenses.

***, ** **** * ********** ** **** ***** ******* ***** that * ** **** *** **** ***** *** *** ****** -******** ** ***** ******* *** ******* ****.

* ***** ** ***** **** ** ** *** ********* *** bubble ****** **** ********** ******** ******* *** *** ******** ** longer **** ****** * ******, ***?

**,

* ***'* *** **** ***** ***** "******* ******". ** *** the **** ***** **** *** ******** *.*-**** *-***** ****** ** Vitek ******* *** **** **** ** ** ***** ***** **** integral **** ***** ****** ******. ** **** *** ** **** the ************ ******* **** *******-******** *-**** ******.

* ****** ***'* ***** **** *** ** ****** *** ** a **** *****. ** ** * ****** *****. *'** *** manufacturers *********** ****, ********** **** ****** ***** ****** ******, *** bubble ***** ** *** **** ** ******* ** *** ****.

** * ******* ****: *'** ***** **** **** ** * camera ******* ***** *** ***** ***** ** ******** ** *** front ** *** **** ** ** ******** ***** ** **** the ********* ** *** ****** **** **** * **** *******.

** ** * *********** ***** - **** **** + ******.

*****, ****** ***** ** *** ******* **** ******* **** *** longest ********** ******* ****** ** ****.

****, *** *** ******** **** ** ** ********** ***** - long **** + ****** ** **** ** ******** * ***** adjustment? *** ****** ** **** *** ************* *** ********, *.*.,******** ** ***** ******* *** ******* ****

** ******* * ***** ********** *** *'** ***** **** ** certain ****** **** ****** ****, *** ****** ********** ***'* ** totally ********. ** ** *** *** **** ** *** *** in ***** ******* **** ** *** ** *****.

**** *** ** **** *** **** ** *** ********* ************* to *** ******. * **** *** ****** ** **** ******* where *** ********** ** *** **** ****** ****** ** ******** shift ***** ****** **** ******.

***,

**** ******'* ******* *** ***** ** **** ****** *** *** with *** ****** ***. * **** **** **** *** ********, though. ** ** ***** *** ****, *** **** *** *****-******** into *** ******.

*****- **** *** ******* ********* *** *** ** *** *** shots?

** ** *** *** **** **** *** ******** ******* ** all ***** **** **** **. **** **** ****** ** ****.

*** **** ******* **** ***** * ****** ***** ***** ***** is *** *** *** *** ***** ****.

*****- **** *** ******* ********* *** *** ** *** *** shots?

****. ******* ******* ****, *** *** ** **** *** ********** conclusions?

*** **** ****.

******!

***** **** ******, ***** *** *****, ** ****** *****?

***** *******! ****** **** * ******* **** ****** ****** *** housings *** **** ***** ************* ** ***** ***** * *** of ******** ** ******** ****** *** **** ********* "*****" ****** possible.

**** **** **** **** *** ******* ******* ****** ** ** far ******** ** ******** ******** ************* ******. *** ************* ****** allows *** * **** ********** ****** *** *** ******* ** IK10 ****** ******. *** ******* ******* ***** ********* ******** ***** the ****** ************ ** *** *************. *** **** ********* **** can **** **** ***** ******* *** ******** ***** ******* **** as ***** ******* ** ** **** ******* ********* ** **** as ********* ********* *****; *******, *** ***** *** *** ******** is ***** **-** **** ** *** ************* *** *******.

******* ******* *** ********* *** **** ** ******* ****** ** high ******* ******* ********** ** *************/******* **** *** **** ******* shape ** *** ****** ****** ****. *** **** ******* *** overal ****** ***** ** **** ** *** ****** **** *** better *** ****** ***** ** *** ******. ******* *** ******** from *** ****** **** ** *** ****** ****** ** ********* across *** ****** ****. *** ******** ** **** **** ** solution ** *** **** **** * ********** **** ** *** very ****** ** *** **** ***** ********* ** **** ***** quality. **** ** ****** *** ** *** ********* ******* ********* in ******* ******* ******* *** ******* *******. ********* ****** **-** degrees ***** ******* ******* ********* ********* **** *** ******** ********* line.

****** ** * **** ** *** ****** ******* ******** ***** quality ********* ** * **** *-**** *********. ****** * *** manufacturing ******* ** *********** ** ******** ***** **** **** ** will ******** ** *** **** ***** ********* **** ******.

******, ****** *** *** ******** ********.

*** *** ******* ***** *** ****** ****** / *************** *** changed ** *** **** ******? * ** ******* **** ************ have *******.

***, ** *** ****, ** **** * **** ** ****:******* ****** ** ***** *****

**** ****** ******,

** ******** * ***** **** ** **** **** ******* ****.

***** ****. ***********.

**** **** **** **** ***thinner ******* ****** to be far superior to industry standard ************* ******.

***** **** *** *** ***** **** **** **** ** *** test?

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