YN560 metering results are in

[Kaouthia]

Looks like the YN560 is a about half a stop more powerful than the YN460-II (given that full power and 1/2 power on the YN460-II were only just over 1/2 stop difference, not a full stop) - and OMG @ under 2 seconds recycle at full power! (without an external battery pack!!!).

These readings were done by Kurbster over on Flickr.

I'm assuming those readings were with the head zoomed to 35mm to make it a fair comparison. At 105mm..

1/128 f4
1/64 f5.6
1/32 f8
1/16 f11
1/8 f16
1/4 f22
1/2 f32
1/1 f45

OMG again at <2 secs recycle @ full power.

 

[Cistron]

Oh sweet.

Graham, go get 'em! Pleeeeeaaaase.

 

[The23rdman]

John, I was just about to post this. It's important to note that this isn't the complete story. Follow the link to the thread as it's actually more powerful than stated due to the original mighty Kubster post not including the incremental bars in the test.