Roy C
Occasional bird snapper
I have just been playing around with a 1.4x tc on the 400/5.6 and am pleasantly surprised at the AF speed at f8 with the combo - my first thoughts are its as fast if not faster than the 5D3.
I also tried the AI servo 'near to far' test at 560mm - this involves focus on something near and then something far away without disengaging the AF (I use back button focusing), it worked very well.
I just need to get out now and take some pics to see if the AF accuracy and IQ is holding up.
I also tried the AI servo 'near to far' test at 560mm - this involves focus on something near and then something far away without disengaging the AF (I use back button focusing), it worked very well.
I just need to get out now and take some pics to see if the AF accuracy and IQ is holding up.