bobbyz wrote in post #18993116
You mean dedicated button for eye AF. So pressing it always engage eye AF. What focus area you use? You mind sharing settings of your camera if and when you have some free time. Thanks in advance.
Yeah I have the dedicated eye Af mapped to the "AF-ON" button and the regular AF mapped to the AE-L button. I switch between the two buttons depending on the situation
bobbyz wrote in post #18993154But I though A7rIV has this real time tracking so I shouldn't need to have a dedicated button for eye-AF. I see eye-AF green square showing up perfectly on the eyes. I can switch Left/Right eye with AEL button but the resulting shots are just not as good as Fuji. To me if camera nailed eye AF, I should have very nice focused eyes. It can not be the MPs as I am used to GFX50s giving me super sharp results at f1.6 (FF equivalent) using contrast based face detect.
Edited:- I will test more, just need better weather and some time on the weekend. I can see what you guys saying could be happening. The green ||[]|| is on the chest, then I see small green on the eyes but it seems focus is on the chest not the eyes. So far I have Sony 85mm f1.8, Sigma 105mm f1.4 and now tamron 28-75mm. It can't be the lens. Either me or some setting. I like customization but man Fuji's implementation is much simpler. I only select face/eye detect ON and that's it.
Yeah the "issue" with real time tracking is that it jumps off the eyes too quickly in order to keep from failing to focus and while this is great for documentary purposes because you're less likely to miss key moments if things are moving, you do lose the AF precision because the AF system is not exclusively focusing on the eyes.
I also think that for slower lenses, the AF point moves faster than the actual focal plane moves so you get a false confirmations when the AF system is jumping from the eye, to the body, to the face, etc depending on what it can detect at a given point. This is something I am mindful of with the 85GM.
So its a horses for courses type situation.
It's sort of like toggling between "focus priority" and "release priority". Dedicated eye-AF has greater precision because it will only focus on the eyes, but you risk missing something the focus system failing when it can't find an eye. Live tracking ensures that the focus system follows your subject well enough to get a shot if things are moving, but you give up that consistent focus on the eyes.
