AE-L AE-F button Help!

[-Paul-]

So after my recent brush with the AE-L AE-F button (See thread 'Lens problem any ideas) I am not quite sure what this button does... Anyone be kind enough to point me in the right direction please? Thanks.

 

[arclight]

It locks the exposure or focus that the camera sets when you partially depress the shutter release button (thereby allowing you to recompose and shoot without altering focus or metering).
Some Nikons permit this button to be programmed to work in various ways, but that is the default.

 

[M.A.Gibson]

Think it refers to use in back button focusing as a technique
Hope this helps..
http://improvephotography.com/4552/back-button-focusing/

 

[sep9001]

Think it refers to use in back button focusing as a technique
Hope this helps..
http://improvephotography.com/4552/back-button-focusing/

Thanks for the link. Need to learn this and use it.

 

[arclight]

Thanks for the link. Need to learn this and use it.

Kev, your D90 does not have a dedicated AF-ON button so you will need to go into the menu and assign that function to the AE/AF lock button if that is what you want.

Nikon manuals tell you how to do everything, but not why you may want to do them. A good book that goes into that sort of detail is money well spent.

e.g. http://www.amazon.co.uk/David-Buschs-Nikon-Digital-Photography/dp/1598639056

 

[sep9001]

Kev, your D90 does not have a dedicated AF-ON button so you will need to go into the menu and assign that function to the AE/AF lock button if that is what you want.

Nikon manuals tell you how to do everything, but not why you may want to do them. A good book that goes into that sort of detail is money well spent.

e.g. http://www.amazon.co.uk/David-Buschs-Nikon-Digital-Photography/dp/1598639056

Thanks. Have been watching a few videos on YouTube. Now just need to make some time to play..