View single post by Eric
 Posted: Tue Feb 27th, 2018 13:54
Eric



Joined: Wed Apr 18th, 2012
Location: United Kingdom
Posts: 4186
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jk wrote:
Eric,
The multi-point AF stuff is confusing and peverse. I tend to simplify and go to single ot AF for most stuff. The advent of the joystick for AF point moving makes this much easier.
I use in Nikon the Dynamic AF 51 points mode for flamenco and it is 90% effective.
Likewise with Fuji I have it set to use mode2 of the dunamic. I think there are several different modes and the one you need to uses varies by subject movement speed.

It is not a Fuji thing but the Nikon sustm seems to work better for wildlife. I need to test the Fuji more for wildlife.


This is an exercise in understanding how different modes MIGHT help. I have been a committed single spot user for many years for EVERYTHING but was merely trying to see if I was missing something with all these modes.


My problem is not so much when to use it as....how can you possibly get accurate focus from zone focusing?

Here's an example. No movement of subject or camera to confuse the system. I spread a range of food on the lawn for various birds. Before they arrived I framed up with the 'fat ball' in the centre of the screen and the focusing 9x9 zone as shown in this picture.

Press the shutter and the 3 bottom squares light up green!

What's wrong with the middle square that's positioned right over the main object? Why didn't that light up AS WELL or with the two either side of it?

No surprise that when I reviewed the image....the grass in front of the fatball, where the 3green squares were, is sharp. The target isn't!

If this is how zone facing works, choosing its own focusing points, how can you hope to get selected areas eg head, of a flying bird sharp? This system could focus on a wing.

I noticed even with waders, using this zone focusing, the camera was more interested in the birds legs that the head, where I aimed the focus.

I had to go back to single spot focus to get the camera to concentrate on what I wanted to be the focal point.

I am at a loss as to how you can dictate what's in focus using this system? Or is my camera screwed?






o.O

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Last edited on Tue Feb 27th, 2018 14:10 by Eric



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Eric