Is it necessary to use focus point selection if i use back button focusing?











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I'm a beginner in photography who just started using back button focusing. Any help would be very appreciated!










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    I'm a beginner in photography who just started using back button focusing. Any help would be very appreciated!










    share|improve this question







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    Sammie is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      up vote
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      I'm a beginner in photography who just started using back button focusing. Any help would be very appreciated!










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      New contributor




      Sammie is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      I'm a beginner in photography who just started using back button focusing. Any help would be very appreciated!







      focus focus-point-selection back-button-autofocus






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      Sammie

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          2 Answers
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          There’s a flaw in your understanding. Back button focus is a method for engaging the autofocus motor. Decoupling it from the shutter release (which locks exposure in Av/Tv modes) allows you to very precisely control both the focus and exposure, especially in fast moving environments (sports/wildlife/street/etc).



          Focus points tell the autofocus what’s most important to you.



          Regardless of whether or not you use bbf, selecting focus points or areas can help the camera maintain focus on your intended target so that you can compose and get the shot you want.



          Using bbf hasn’t changed the role focus points have in your shooting.






          share|improve this answer




























            up vote
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            It is neither more nor less necessary to use focus point selection with back button focus than it is when activating focus with a half-press of the shutter button.



            The only thing moving AF from a shutter button half press to a back button does is changes the way you tell the camera when you want it to focus.



            AF point selection is one way to tell the camera where you want it to focus. You can also use Zone/Area AF, or automatic AF selection which lets the camera focus on what it "thinks" most needs to be in focus. These various AF selection methods are the same regardless of whether you initiate AF using a shutter half-press or a back button.



            For more about back button AF, please see:



            What does the AE/AF lock button do that half-pressing the shutter doesn't?
            What is AF-L needed for?
            Is there a Canon equivalent for Nikon's AF-ON focus system?






            share|improve this answer























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              2 Answers
              2






              active

              oldest

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              2 Answers
              2






              active

              oldest

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              active

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              active

              oldest

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              up vote
              2
              down vote













              There’s a flaw in your understanding. Back button focus is a method for engaging the autofocus motor. Decoupling it from the shutter release (which locks exposure in Av/Tv modes) allows you to very precisely control both the focus and exposure, especially in fast moving environments (sports/wildlife/street/etc).



              Focus points tell the autofocus what’s most important to you.



              Regardless of whether or not you use bbf, selecting focus points or areas can help the camera maintain focus on your intended target so that you can compose and get the shot you want.



              Using bbf hasn’t changed the role focus points have in your shooting.






              share|improve this answer

























                up vote
                2
                down vote













                There’s a flaw in your understanding. Back button focus is a method for engaging the autofocus motor. Decoupling it from the shutter release (which locks exposure in Av/Tv modes) allows you to very precisely control both the focus and exposure, especially in fast moving environments (sports/wildlife/street/etc).



                Focus points tell the autofocus what’s most important to you.



                Regardless of whether or not you use bbf, selecting focus points or areas can help the camera maintain focus on your intended target so that you can compose and get the shot you want.



                Using bbf hasn’t changed the role focus points have in your shooting.






                share|improve this answer























                  up vote
                  2
                  down vote










                  up vote
                  2
                  down vote









                  There’s a flaw in your understanding. Back button focus is a method for engaging the autofocus motor. Decoupling it from the shutter release (which locks exposure in Av/Tv modes) allows you to very precisely control both the focus and exposure, especially in fast moving environments (sports/wildlife/street/etc).



                  Focus points tell the autofocus what’s most important to you.



                  Regardless of whether or not you use bbf, selecting focus points or areas can help the camera maintain focus on your intended target so that you can compose and get the shot you want.



                  Using bbf hasn’t changed the role focus points have in your shooting.






                  share|improve this answer












                  There’s a flaw in your understanding. Back button focus is a method for engaging the autofocus motor. Decoupling it from the shutter release (which locks exposure in Av/Tv modes) allows you to very precisely control both the focus and exposure, especially in fast moving environments (sports/wildlife/street/etc).



                  Focus points tell the autofocus what’s most important to you.



                  Regardless of whether or not you use bbf, selecting focus points or areas can help the camera maintain focus on your intended target so that you can compose and get the shot you want.



                  Using bbf hasn’t changed the role focus points have in your shooting.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 7 hours ago









                  Hueco

                  10.2k32548




                  10.2k32548
























                      up vote
                      1
                      down vote













                      It is neither more nor less necessary to use focus point selection with back button focus than it is when activating focus with a half-press of the shutter button.



                      The only thing moving AF from a shutter button half press to a back button does is changes the way you tell the camera when you want it to focus.



                      AF point selection is one way to tell the camera where you want it to focus. You can also use Zone/Area AF, or automatic AF selection which lets the camera focus on what it "thinks" most needs to be in focus. These various AF selection methods are the same regardless of whether you initiate AF using a shutter half-press or a back button.



                      For more about back button AF, please see:



                      What does the AE/AF lock button do that half-pressing the shutter doesn't?
                      What is AF-L needed for?
                      Is there a Canon equivalent for Nikon's AF-ON focus system?






                      share|improve this answer



























                        up vote
                        1
                        down vote













                        It is neither more nor less necessary to use focus point selection with back button focus than it is when activating focus with a half-press of the shutter button.



                        The only thing moving AF from a shutter button half press to a back button does is changes the way you tell the camera when you want it to focus.



                        AF point selection is one way to tell the camera where you want it to focus. You can also use Zone/Area AF, or automatic AF selection which lets the camera focus on what it "thinks" most needs to be in focus. These various AF selection methods are the same regardless of whether you initiate AF using a shutter half-press or a back button.



                        For more about back button AF, please see:



                        What does the AE/AF lock button do that half-pressing the shutter doesn't?
                        What is AF-L needed for?
                        Is there a Canon equivalent for Nikon's AF-ON focus system?






                        share|improve this answer

























                          up vote
                          1
                          down vote










                          up vote
                          1
                          down vote









                          It is neither more nor less necessary to use focus point selection with back button focus than it is when activating focus with a half-press of the shutter button.



                          The only thing moving AF from a shutter button half press to a back button does is changes the way you tell the camera when you want it to focus.



                          AF point selection is one way to tell the camera where you want it to focus. You can also use Zone/Area AF, or automatic AF selection which lets the camera focus on what it "thinks" most needs to be in focus. These various AF selection methods are the same regardless of whether you initiate AF using a shutter half-press or a back button.



                          For more about back button AF, please see:



                          What does the AE/AF lock button do that half-pressing the shutter doesn't?
                          What is AF-L needed for?
                          Is there a Canon equivalent for Nikon's AF-ON focus system?






                          share|improve this answer














                          It is neither more nor less necessary to use focus point selection with back button focus than it is when activating focus with a half-press of the shutter button.



                          The only thing moving AF from a shutter button half press to a back button does is changes the way you tell the camera when you want it to focus.



                          AF point selection is one way to tell the camera where you want it to focus. You can also use Zone/Area AF, or automatic AF selection which lets the camera focus on what it "thinks" most needs to be in focus. These various AF selection methods are the same regardless of whether you initiate AF using a shutter half-press or a back button.



                          For more about back button AF, please see:



                          What does the AE/AF lock button do that half-pressing the shutter doesn't?
                          What is AF-L needed for?
                          Is there a Canon equivalent for Nikon's AF-ON focus system?







                          share|improve this answer














                          share|improve this answer



                          share|improve this answer








                          edited 4 hours ago

























                          answered 5 hours ago









                          Michael C

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