Understanding wide dynamic range (WDR) is critical to capturing high quality images in demanding conditions. However, with no real standards, any manufacturer can claim WDR, and many do even if actual performance is weak, causing confusion for even experienced users.
In this tutorial, we break down these issues, explaining:
2021 State of WDR
What is WDR?
Camera WDR Challenges
Solution: True Multi-Exposure WDR
Number Of Exposures Varies
True WDR Camera Improve Effective Details
How WDR Is Measured
Decibels Vs. WDR Ratio Measurements
Interpreting Manufacturer WDR Specifications
Resolution Vs. WDR
Multiple Exposures May Reduce Low Light Performance
*** ****** *******************, *** ** *********** the ******* ** ******* high ******* ****** ****** a ***** ***** ** light ******. *** *******, in *** ***** *****, the ****** ** *** scene ** **** ****** due ** *** ******** behind *** ****** ** the *******, ***** *** scene ** ****** ****** of *** ******** ** it **** *** ******* direct ********.
Camera *** **********
******* ************ ********* **** wide ****** ** ******** because ** ***** ********** on ******* ********. ******* **** ***** to ******** ** *****. However, *** **** ***** and *** ***** ** washed ***, *** *** little ***** *** *** image ** *** ****.
** *** **** * scene **** **** ********, the ****** *** ****** adjust *** **** ******* size ** *** ******* speed ** *** *** right ****** ** *****. This ** *** ************* typically **** ***** ******* in **** ******** ******.
*******, ** *** ***** has * **** ***** of ********, *** ****** has * ***** *********. If ** ********* *** amount ** ***** ** takes ** ** ******** for *** ****** *****, the ***** ***** ***** will ** *** ****. However, ** ** ******* the ******** ********, ********** for *** ***** *****, the ****** **** **** be ****** ***. *** image ***** ***** **** tough ********:
Solution **** *****-******** ***
***** *** **** ********* for *** ****** ** setting *** ******** ************* to ******* **** **** and ****** *****, *** most ****** ****** ******** is ** *** ******** exposures *** **** ******* them ** ******* * better ******* *****, ******** to ** **** *** or *****-******** ***. *** short ******** ******** *** bright *****, ***** *** long ******** ******** *** dark *****. *** *** representation *****:
*** *** ***** ** this ***** ** ~***, with *** **** ******* at *,*** *** *** the ******** ****** ***** at ~***. **** ** a ****** ***** *****, but ** **** **** much ******* ** *** tests, ** ******* ********* may ** ** ****** as **,***+ ***.
******* ** ****, ** recommend ********* *** ** the ****** ***** ** be ******. **** *** be **** ** * field **** **** *~$*** *** *****. ************ ****** ** performed **** *** *** or ***** ***** ** strongest ** *** ***** as *** ***** **** vary ********** *** ***.
Interpreting ************ *** **************
*** ****** ***** ******* manufacturer ** ************** ** they *** ****-******** *** not ********* *************, **** if *** ************ ** telling *** '*****', ***** is ** *** ** know ** *** ****** is. *******, ***** *** some ******** ** ********:
* *** ** ****** of **** ** **** almost ****** ***** **** the ****** **** *** support **** *** ** manufacturers **** **** ****** their ******* **** *** will ****** **** *** camera ** *** ** the *** '*****'. '*******', non *** ******* ********** are ********* ** *** range ** ** - 80dB.
* *** ** ****** of ***+ *******, *** not ******, ***** **** the ****** ******** **** multi-exposure ***. *****, ******, since ************* *** **** to ****** *** ***** they ****, ** ** not **********. **** **** to ****** *** **** own ***** ** ****** **** *******.
*******, **** ************* *** relatively ************ ** ***** WDR ** *******. *** example, ***** ***** **** of ***** **** *** cameras ** '****' *****. This **** *** **** they *** ***** **** a **** ******* ************ self-assigning ***** ** *****. Actual ******* ** ******** to ******.
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Comments (11)
Undisclosed #1
**** ********** *** *** meter ****, *****’* *** meter **** ** ***** towards *** ******?
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Michael Miller
***** * ***** *** that *** *** *** H5SL ******* **** ******** now **** ***
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Amitkumar Sirjusingh
*********** ** **** **** purchasing ** ********* '**** WDR' ** ******* ** digital *** ** **** made-up **** *** '****' WDR **********. * ****** though ** *** ** absolutely ********* ***** **** shutter *****, ***** *****, imager *** *** *** also ******* ******** ********** depending ** *** ***********.
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Amitkumar Sirjusingh
***, ****** *** *** feedback
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