Puzzled about D90 Focusing mode

[desertstrike]

anyone familiar with D90 focusing mode?

there are 2 type of mode that i am puzzled with...

1. AF-A, AF-S, AF-C

i know what that A is auto, S is stationary, C is continuous
i also tried it out, if i set to S. i focus on an object, camera focus
when i point to another object further, it does not re-focus
If i set to C, after i focus on an object, i point to another focus which is further
it was automatically, refocus.
Is this the only difference for the AF mode?
In that sense, it is more convenient to just set as AF-A rite?

2. single point, dynamic area, auto area, 3D-tracking

single point can choose the auto focus area
dynamic - i dun really understand, can't see the difference
auto area - focus point selected when half click, then stay that way
3 D tracking - the focus point automatically reselect when the object moves?

can anyone enlighten me on the puzzled points?

[deklan]

convenience is subjective to the shooter's own style.
FYI, AF-A basically means a auto switch between AF-S or AF-C, so if you know what you want, no diff using Auto...
AF-S isn't Stationary.. its Single Servo, meaning it focuses once an where u half press...
AF-C, continuous, will keep focusing when ever half pressed...

cant really advise on pt 2 as i dont use that...

[Pablo]

What was your previous camera ?

[desertstrike]

Originally Posted by deklan convenience is subjective to the shooter's own style. FYI, AF-A basically means a auto switch between AF-S or AF-C, so if you know what you want, no diff using Auto... AF-S isn't Stationary.. its Single Servo, meaning it focuses once an where u half press... AF-C, continuous, will keep focusing when ever half pressed... cant really advise on pt 2 as i dont use that...

oh i see, thanks man for the point 1

hope someone else can give some pointers on point 2

[tanhb]

Here you go.

http://www.nikondigitutor.com/eng/d90/index.shtml

[Stuffed]

Originally Posted by desertstrike anyone familiar with D90 focusing mode? there are 2 type of mode that i am puzzled with... 1. AF-A, AF-S, AF-C i know what that A is auto, S is stationary, C is continuous i also tried it out, if i set to S. i focus on an object, camera focus when i point to another object further, it does not re-focus If i set to C, after i focus on an object, i point to another focus which is further it was automatically, refocus. Is this the only difference for the AF mode? In that sense, it is more convenient to just set as AF-A rite? can anyone enlighten me on the puzzled points?

Most of the time, I am on AF-S, because I tend to recompose after focusing, and AF-A will throw my subject out of focus. So it depends on your style.

[desertstrike]

Originally Posted by tanhb Here you go. http://www.nikondigitutor.com/eng/d90/index.shtml

thanks man!

[desertstrike]

Originally Posted by Stuffed Most of the time, I am on AF-S, because I tend to recompose after focusing, and AF-A will throw my subject out of focus. So it depends on your style.

true also, thanks for ur views

[desertstrike]

ok guys, lets say i wanna take a pic of eagle flying across,

it is better that i use AF-C + 3D tracking?

[prestonia]

Originally Posted by desertstrike ok guys, lets say i wanna take a pic of eagle flying across, it is better that i use AF-C + 3D tracking?

Yes, it's better to use AF-C with 3D tracking.

For myself, I'm permanently on AF-A with 3D tracking. If the object moves, it tracks, but if I want a stationary composition, I AF and press AF-L to lock focus and recompose. In that way, I don't ever need to change AF mode and I can capture sudden moving object without the need to switch AF-S to AF-C.

[desertstrike]

Originally Posted by prestonia Yes, it's better to use AF-C with 3D tracking. For myself, I'm permanently on AF-A with 3D tracking. If the object moves, it tracks, but if I want a stationary composition, I AF and press AF-L to lock focus and recompose. In that way, I don't ever need to change AF mode and I can capture sudden moving object without the need to switch AF-S to AF-C.

thanks for tip man