I think that NORMAL is the locked state.

If we trigger a focus it seems to stick with that from then on, which works for us. I checked back and in the 1.5 beta, all focus modes seem to do the same thing, which is trigger an auto focus (and all of them report 'requested focus mode successfully').

DavidBeard wrote:

I've been able to confirm that the iOS capture API only allows continuous autofocus, single shot autofocus, and a 'normal' focus. There apparently are no infinite or macro options.

https://developer.apple.com/library/ios/#documentation/AVFoundation/Reference/AVCaptureDevice_Class/Reference/Reference.html#//apple_ref/doc/constant_group/Focus_Modes

Quote:

AVCaptureFocusModeLocked
The focus is locked.
Available in iOS 4.0 and later.
Declared in AVCaptureDevice.h.

:confused:

edit: ok I'm doing more tests with clean projects (one using 1.5 beta and another using latest vuforia release) -- will report results.

I've been able to confirm that the iOS capture API only allows continuous autofocus, single shot autofocus, and a 'normal' focus. There apparently are no infinite or macro options.

ksiva wrote:

We're looking into this. In the meanwhile, setting the focus mode to FOCUS_MODE_NORMAL should disable continuous autofocus. Does that not suit your needs?

- Kim

It will still occasionally tigger a refocus when set to FOCUS_MODE_NORMAL. It is really distracting when your view goes blurry for a couple seconds.

We're looking into this. In the meanwhile, setting the focus mode to FOCUS_MODE_NORMAL should disable continuous autofocus. Does that not suit your needs?

- Kim

DavidBeard wrote:

You were using FOCUS_MODE_INFINITY?

Let me check with one of our iOS gurus, and I'll confirm what the status of the camera modes is for the 4S.

Yes, I was definitely using FOCUS_MODE_INFINITY in the 1.5 beta. It's really distracting when the camera refocuses so that was one of the first things I changed when I first implemented QCAR.

You were using FOCUS_MODE_INFINITY?

Let me check with one of our iOS gurus, and I'll confirm what the status of the camera modes is for the 4S.

DavidBeard wrote:

Apparently the 4S doesn't support all of the focus modes. I think that NORMAL and autofocus are your options.

You can review the focus modes available on your phone by attaching the CameraDeviceMenu.cs script found in the ImageTarget sample to an ARCamera instance. This will query your available modes and generate a menu of them them as a GUI.

I was using it just fine in the 1.5 beta though :confused:

Apparently the 4S doesn't support all of the focus modes. I think that NORMAL and autofocus are your options.

You can review the focus modes available on your phone by attaching the CameraDeviceMenu.cs script found in the ImageTarget sample to an ARCamera instance. This will query your available modes and generate a menu of them them as a GUI.