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What's the purpose of Touch AF? (NX300)

Started Jan 19, 2016 | Questions thread
Dimi Koan
OP Dimi Koan Junior Member • Posts: 26
Re: What's the purpose of Touch AF? (NX300)

Tugela wrote:  When it does focus twice, think of it more as initial trial run, to see if focus is possible. Also, if the lens is already focused on or close to a difficult to focus object, it refocuses much faster than if it were to try from scratch.

I cannot confirm this. From my experience re-focusing takes about the same time as initial focusing.

The behaviour I would love:

1. Touch AF, 2. I fine-tune focusing manually, 3. I press the shutter button to shoot.

But currently when I press shutter it refocuses loosing my perfect focusing.

Surely I can achieve a similar result with "AF point" option:

1 Touch to set AF point, 2. Half press shutter to autofocus 3. Adjust focusing manually while holding shutter button 4. Press to shoot

The drawback here is that I need to hold shutter before shooting. Another one is that when I shoot another time my perfect focus is lost by auto-focusing. Well I can switch to manual before shooting but it's kind of a hassle to do it each time. So for me that each time re-focusing thing is ruining potentially really useful option.

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