Back Button Focus D5100

T

Tommy49

New member
I'm using Back Button Focus on my D-5100 but find the following annoying and wonder if I have my setting set correctly. At times, if I try to re-focus nothing will happen unless I depress the shutter button half-way down. It seems the camera has to go thru some sort of metering or something before it will allow the back button to re-focus. I have my auto focus mode set to AF-C and my AF area mode to single point.

Should this be happening?
 
N

nickt

Senior Member
Do you have the back button set to AF-ON, menu F2?
...and AF-C mode is set to release priority, menu A1?
That should do it. Back button focuses and shutter button takes the picture, focused or not. If you want constant focus, keep holding the back button. If you want to recompose, let go of the back button and recompose. The shutter will fire without refocusing.
 
M

Mike D90

Senior Member
Tommy49 said:
I'm using Back Button Focus on my D-5100 but find the following annoying and wonder if I have my setting set correctly. At times, if I try to re-focus nothing will happen unless I depress the shutter button half-way down. It seems the camera has to go thru some sort of metering or something before it will allow the back button to re-focus. I have my auto focus mode set to AF-C and my AF area mode to single point.

Should this be happening?
Click to expand...

That doesn't ever happen to me unless I am in very low light.
 
K

kluisi

Senior Member
I think his camera is sleeping in between shots and the shutter button press is waking it up (and starting the exposure metering again) so that the BBF will begin to work again. I'm not sure if that is how it is supposed to work or if the BBF is supposed to wake it up too, but that's my guess about the issue that the OP is describing.
 
Top