Back button focus (1 Viewer)

[shrek48]

This maybe a ridiculous question but, is there any benefit to holding the back button focus in whilst taking pictures? does that keep the camera focusing as the subject moves ? I cannot seem to find an answer on the net! Does the D500 have tracking focus ability ?
TIA

 

[Farnboro John]

This maybe a ridiculous question but, is there any benefit to holding the back button focus in whilst taking pictures? does that keep the camera focusing as the subject moves ? I cannot seem to find an answer on the net! Does the D500 have tracking focus ability ?
TIA

Using back button focus means the only function of the shutter button is to take the picture. Takes a bit of practice but very much worth it.

Back button focus enables you to compose a picture without having to half-press the shutter and then lose the focus on the subject as you move the focus point off it for composition. In that case you would release it before taking the picture.

If you keep the focus point over the subject then yes, holding it in will keep the focus on the subject as you take pictures.

John

 

[shrek48]

I love BBF but just wondered if holding the button in whilst taking pictures of moving subjects mean't it would continually focus ;-)
thanks!

 

[seaspirit]

I love BBF but just wondered if holding the button in whilst taking pictures of moving subjects mean't it would continually focus ;-)
thanks!

It will try, and its one of the major reasons to use BBF!
If you shoot a burst of frames on a moving subjects it is pretty much a must do to keep the the BBF button down, unless the is a reason to let go -panning and an object in the foreground passes through the frame!
Depending on the frame rate you may have an out of focus frame in the sequence, but for the majority the focus will track along. The more the frame is filled by the subject the more reliable it is. If you don't, then the first frame maybe in focus and that's it.
Try it for yourself and take a series of an approaching car .........

 

[Oldnintheway]

Be sure you're set to AFC.

Free Back Button AF Guide For Nikon - Backcountry Gallery

(Note – if you already have my Secrets ToThe Nikon Autofocus System e-book, you don’t need this book – you already have all the info 🙂 ) Have you ever wondered how back button autofocus works? Have you ever wondered how to set up Back Button AF (BBAF) for your Nikon? Well, you’re not alone! My […]

backcountrygallery.com

 

[shrek48]

Be sure you're set to AFC.

Free Back Button AF Guide For Nikon - Backcountry Gallery

(Note – if you already have my Secrets ToThe Nikon Autofocus System e-book, you don’t need this book – you already have all the info 🙂 ) Have you ever wondered how back button autofocus works? Have you ever wondered how to set up Back Button AF (BBAF) for your Nikon? Well, you’re not alone! My […]

backcountrygallery.com

Thanks, downloading now, yes AFC ;-)

 

[shrek48]

Thanks, downloaded and tells me exactly what I wanted to know ;-) thank you