Methodical wrote in post #19165096
I think the Auto setting for Eye Detect is best for really static objects, like portraiture work, where you want to switch from one eye to another. It can work for really static birds, but we know they move a lot. I'd rather tell the system where to start with Eye Detect and if necessary use single AF point to change to another subject. Test it out though to see if you like it. It's ok, but I didn't want the system to make too many choices on it's own.
Here's a video where this guy goes through and explains each AF setting in pretty good detail with sample testing. He goes into detail about the "Auto" setting for eye detect. Check it out.
https://www.youtube.com …Ag.9F3lmdp0WwM9H-GQbPVZdB
Yes, the Auto setting for Eye Detect is great for portraiture, and my C1 mode is set for such. What I'm finding is that the only way that I can have the pre-focus white square to appear on the viewfinder in Servo AF mode is when the Auto is chosen. In One Shot mode, no problem, and that's why the guy in the video has the white square come up although he did not choose the Auto setting. When I choose, as in my prior set up, Initial AF pt set for Eye Detect, then I lose that pre-focus white square because of the Servo AF setting elsewhere in the menu.
A problem with my prior set up (Initial AF pt for Eye Detect) was that, although you can tell the system where to start, once it starts where you ask the system to, it will detect an eye at random and you lose the control and the system takes over. Here's the situation I found myself in often with my prior set up: I see a group of birds all in close proximity to one another. I initiate the AF to be in one particular bird' eye and all's well initially. Then, since they move constantly (or if you move your camera), the system randomly picks another bird's eye next to the initial bird. I then press the * button (set to spot focus) to get back to the initial bird of my choice. It goes on like this, back and forth, back and forth.
With the Auto setting (and from here, since I'm bound at home and unable to go out for actual birding, is based on my tests using my HDTV screen where two or more people are next to one another) I have the pre-focus white square come up immediately as soon as I point my lens in that direction and finds an eye to focus on. Right away. The pre-focus white square goes to the eye that I'm pointing my lens to. If I want another person's eye, I simply point the lens in that person's direction, and the white square finds that person's eye without the apparent randomness. Of course, the subjects are larger than the small birds, but then I believe I can duplicate this in real birding situations since the tiny birds become larger subjects by lens zooming.
The point is that the Auto setting for Eye Detect is so good that I'm willing to give this method a try in real birding situations. If my initial findings are confirmed, then I'll stick to this for good. The guy in the video link is wrong about the Auto setting, namely, that "it does whatever." Without the Eye Detect enabled, yes, he should be correct, but not Auto setting in conjunction with the Eye Detect enabled. In conjunction, it becomes Auto Eye Detect and it detects the eye that your lens is pointing to and it does it immediately and with the added benefit of being able to pick the eye of my choice with the white arrow by a simple nudge of the joystick.
The difference between my prior set up (Initial AF pt for Eye Detect) and now with the Auto appears to be that I can have greater control of the eye among many eyes and at very fast speed. Auto in this case doesn't seem to be synonymous with randomness. Quite to the contrary, I get to be in control more than the camera system.
But, again, these findings aren't from real birding situations, so these need to be confirmed. I'll report on this later.