How is AF single focus mode working

chals · 02-18-2007, 06:57 AM

I saw in a Norwegian test that if K10d is in AF single mode that the camera wan'nt fire if subject is out of focus. Can this be tru? What about focus and recompose?

Cato

-=JoN=- · 02-18-2007, 07:52 AM

yes, it will not fire if it's not focused at af.s
yeah..if it wont fire, then your pretty much forced to recompose

*isteve · 02-18-2007, 08:03 AM

As long as its has locked and you keep your finger on the button when you recompose it will fire.

chals · 02-18-2007, 08:11 AM

Originally posted by *isteve

As long as its has locked and you keep your finger on the button when you recompose it will fire.

forgot to mention: I will be using the AF-button on thr camera back. So when focusing using the center af-sensor, releasing the button, recompose. and fire.

Will this be possible or will the camera refuse to operate unless it focused on something

chals · 02-18-2007, 08:39 AM

Here is from another test: "In single-focus mode, the camera will not take a picture unless focus-lock has been established."

I cant beleave this. Is it tru? Is the only way to focus and recompose to use the continious mode and release the button and then take a picture?

I am confused now, and someone might buy my D2x tonight or tomorrow. Maybe I am not selling it if the above is the way the K10D operates.

Oskar · 02-18-2007, 09:39 AM

In AF-S the camera will not take a picture unless it has got focus lock.
In AF-C (and MF) , it will take a picture when you press the trigger fully - even if it has not got focus.

If you lock focus, you can recompose the picture while the trigger button is pressed halway. Or you can disable AF on the trigger button in the menu and use the AF button on the back to autofocus. The same rules for AF-S and AF-C apply when using the AF button.

Pheo · 02-18-2007, 10:10 AM

Indeed, AF-S requires focus lock, AF-C does not. If your using single point mode, select whichever is appropriate for the shooting conditions.

I only tend to use center point focus mode, I find it more useful knowing where the cam is going to try to focus, and if I want a specific point I just half press and re-compose. Works great and you can shoot incredibly fast like this.

chals · 02-18-2007, 10:31 AM

But if you focus in SF mode, using the AF button on the back of the camera, get a focus on something and then realease the AF-button, and then recompose will camera fire then. In other words, if you are in SF mode and dont focus on anything, will the picture be taken?

I am sorry for beeing so stupid

Cato

-=JoN=- · 02-18-2007, 10:40 AM

Originally posted by chals

But if you focus in SF mode, using the AF button on the back of the camera, get a focus on something and then realease the AF-button, and then recompose will camera fire then. In other words, if you are in SF mode and dont focus on anything, will the picture be taken?

I am sorry for beeing so stupid

Cato

no worries mate...

i think i got the jist of what your trying to do
in Custom, i turned off shutter focus half way and turned on af button to focus (i had it on cancel af)

1. pressed AF button to focus on object, released AF button, recomposed, pressed shutter button release, picture taken

2. put the lens out of focus, pressed shutter, picture taken, nothing was in focus.

all in AF.S

so, yes, shutter can be released with things OoF

chals · 02-18-2007, 11:37 AM

Puh!! It will operate as I am used to. Probably better with the battery grip, as the D2x does not have AE lock at the vertical position, but it has the AF-button there.
So, if I can reach the AF-button on the K10d with my tumb while holding the camera in the vertical position with the grip it will work better for me, since I can operate both buttons with my thumb in the vertical position too.

Hvave any of you tried this?

Thank you for helping me out here.

Cato

-=JoN=- · 02-18-2007, 11:48 AM

Originally posted by chals

Puh!! It will operate as I am used to. Probably better with the battery grip, as the D2x does not have AE lock at the vertical position, but it has the AF-button there.
So, if I can reach the AF-button on the K10d with my tumb while holding the camera in the vertical position with the grip it will work better for me, since I can operate both buttons with my thumb in the vertical position too.

Hvave any of you tried this?

Thank you for helping me out here.

Cato

nope, going out to do some shooting, so, i'll see how that works out later

Edvinas · 02-18-2007, 03:03 PM

Originally posted by chals

But if you focus in SF mode, using the AF button on the back of the camera, get a focus on something and then realease the AF-button, and then recompose will camera fire then. In other words, if you are in SF mode and dont focus on anything, will the picture be taken?

Yes, it will.

I take landscape and static portrait pictures exactly the same way as you described here.

02-18-2007, 06:57 AM	#1
chals Junior Member Join Date: Feb 2007 Location: Norway Posts: 49	How is AF single focus mode working I saw in a Norwegian test that if K10d is in AF single mode that the camera wan'nt fire if subject is out of focus. Can this be tru? What about focus and recompose? Cato

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02-18-2007, 07:52 AM	#2
-=JoN=- Veteran Member Join Date: Nov 2006 Location: NYC Posts: 999	yes, it will not fire if it's not focused at af.s yeah..if it wont fire, then your pretty much forced to recompose

02-18-2007, 08:03 AM	#3
*isteve Veteran Member Join Date: Nov 2006 Location: London, England Posts: 1,187	As long as its has locked and you keep your finger on the button when you recompose it will fire.

02-18-2007, 08:11 AM	#4
chals Junior Member Join Date: Feb 2007 Location: Norway Posts: 49 Original Poster	Originally posted by *isteve As long as its has locked and you keep your finger on the button when you recompose it will fire. forgot to mention: I will be using the AF-button on thr camera back. So when focusing using the center af-sensor, releasing the button, recompose. and fire. Will this be possible or will the camera refuse to operate unless it focused on something

02-18-2007, 08:39 AM	#5
chals Junior Member Join Date: Feb 2007 Location: Norway Posts: 49 Original Poster	Here is from another test: "In single-focus mode, the camera will not take a picture unless focus-lock has been established." I cant beleave this. Is it tru? Is the only way to focus and recompose to use the continious mode and release the button and then take a picture? I am confused now, and someone might buy my D2x tonight or tomorrow. Maybe I am not selling it if the above is the way the K10D operates.

02-18-2007, 09:39 AM	#6
Oskar New Member Join Date: Dec 2006 Location: Stockholm, Sweden Posts: 6	In AF-S the camera will not take a picture unless it has got focus lock. In AF-C (and MF) , it will take a picture when you press the trigger fully - even if it has not got focus. If you lock focus, you can recompose the picture while the trigger button is pressed halway. Or you can disable AF on the trigger button in the menu and use the AF button on the back to autofocus. The same rules for AF-S and AF-C apply when using the AF button.

02-18-2007, 10:10 AM	#7
Pheo Veteran Member Join Date: Nov 2006 Location: Brighton, United Kingdom Photos: Gallery Posts: 311	Indeed, AF-S requires focus lock, AF-C does not. If your using single point mode, select whichever is appropriate for the shooting conditions. I only tend to use center point focus mode, I find it more useful knowing where the cam is going to try to focus, and if I want a specific point I just half press and re-compose. Works great and you can shoot incredibly fast like this.

02-18-2007, 10:31 AM	#8
chals Junior Member Join Date: Feb 2007 Location: Norway Posts: 49 Original Poster	But if you focus in SF mode, using the AF button on the back of the camera, get a focus on something and then realease the AF-button, and then recompose will camera fire then. In other words, if you are in SF mode and dont focus on anything, will the picture be taken? I am sorry for beeing so stupid Cato

02-18-2007, 10:40 AM	#9
-=JoN=- Veteran Member Join Date: Nov 2006 Location: NYC Posts: 999	Originally posted by chals But if you focus in SF mode, using the AF button on the back of the camera, get a focus on something and then realease the AF-button, and then recompose will camera fire then. In other words, if you are in SF mode and dont focus on anything, will the picture be taken? I am sorry for beeing so stupid Cato no worries mate... i think i got the jist of what your trying to do in Custom, i turned off shutter focus half way and turned on af button to focus (i had it on cancel af) 1. pressed AF button to focus on object, released AF button, recomposed, pressed shutter button release, picture taken 2. put the lens out of focus, pressed shutter, picture taken, nothing was in focus. all in AF.S so, yes, shutter can be released with things OoF

02-18-2007, 11:37 AM	#10
chals Junior Member Join Date: Feb 2007 Location: Norway Posts: 49 Original Poster	Puh!! It will operate as I am used to. Probably better with the battery grip, as the D2x does not have AE lock at the vertical position, but it has the AF-button there. So, if I can reach the AF-button on the K10d with my tumb while holding the camera in the vertical position with the grip it will work better for me, since I can operate both buttons with my thumb in the vertical position too. Hvave any of you tried this? Thank you for helping me out here. Cato

02-18-2007, 11:48 AM	#11
-=JoN=- Veteran Member Join Date: Nov 2006 Location: NYC Posts: 999	Originally posted by chals Puh!! It will operate as I am used to. Probably better with the battery grip, as the D2x does not have AE lock at the vertical position, but it has the AF-button there. So, if I can reach the AF-button on the K10d with my tumb while holding the camera in the vertical position with the grip it will work better for me, since I can operate both buttons with my thumb in the vertical position too. Hvave any of you tried this? Thank you for helping me out here. Cato nope, going out to do some shooting, so, i'll see how that works out later

02-18-2007, 03:03 PM	#12
Edvinas Veteran Member Join Date: Sep 2006 Location: Kaunas Posts: 1,458	Originally posted by chals But if you focus in SF mode, using the AF button on the back of the camera, get a focus on something and then realease the AF-button, and then recompose will camera fire then. In other words, if you are in SF mode and dont focus on anything, will the picture be taken? Yes, it will. I take landscape and static portrait pictures exactly the same way as you described here.