D800 live view focus slow and noisy

Started Jun 14, 2013 | Discussions
romfordbluenose
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D800 live view focus slow and noisy
Jun 14, 2013

I have used live view twice now once for stills on a tripod and once hand held video.

Focus seems slower in live view than through the view finder. There is also a slight clicking noise from the lens which seems slightly noisier in live view.

This is not a problem except when recording movies when I touch the focus on button I end up with a click on the sound track.

Has anyone else noticed this?

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Nikon D800
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u007
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Re: D800 live view focus slow and noisy
In reply to romfordbluenose, Jun 14, 2013

Focus in live view uses contrast detection, just like compact point and shoot cameras or mobile phones do. So it will always be a LOT slower than the focus using the viewfinder. Viewfinder-based focus is called "phase detection" and it is very fast, but also less accurate. However, it can be used for tracking subjects, which live view can't.

Basically Nikon have allowed you to choose:

Phase detection (viewfinder) - very fast, can track subjects, but can be inaccurate

Contrast detection (live view) - slower, can't track things, but extremely accurate

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Leonard Shepherd
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Re: D800 live view focus slow and noisy
In reply to romfordbluenose, Jun 14, 2013

Try reading page 47 of the instruction book for confirmation LiveVew is slower and also when AF may not focus accurate.

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Leonard Shepherd
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frank-in-toronto
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Re: D800 live view focus slow and noisy
In reply to Leonard Shepherd, Jun 14, 2013

also, not being an expert at all with video, i would suggest that manual focus should be used when shooting video.

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OrangeMonkey
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Re: D800 live view focus slow and noisy
In reply to romfordbluenose, Jun 14, 2013

If you are still hearing the clicking noise while in live view, it might be due to the auto AE. Press the "ok" button it goes away (if that was your problem)

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romfordbluenose
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Re: D800 live view focus slow and noisy
In reply to OrangeMonkey, Jun 15, 2013

Thanks for your replies, very useful.

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Nikon D800 Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR Nikon AF-S Micro-Nikkor 105mm f/2.8G IF-ED VR Nikon AF-S Nikkor 50mm f/1.8G Nikon AF-S Nikkor 85mm f/1.8G +4 more
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reginalddwight
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Re: D800 live view focus slow and noisy
In reply to u007, Jun 15, 2013

u007 wrote:

Focus in live view uses contrast detection, just like compact point and shoot cameras or mobile phones do. So it will always be a LOT slower than the focus using the viewfinder. Viewfinder-based focus is called "phase detection" and it is very fast, but also less accurate. However, it can be used for tracking subjects, which live view can't.

Basically Nikon have allowed you to choose:

Phase detection (viewfinder) - very fast, can track subjects, but can be inaccurate

Contrast detection (live view) - slower, can't track things, but extremely accurate

On occasion, I have used LV to continuously track faces. The technology in the D800 has improved somewhat as compared to previous DSLRs, but there is definitely room for improvement.

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CFynn
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Re: D800 live view focus slow and noisy
In reply to romfordbluenose, Jun 16, 2013

Slow and noisy LV focus is happening with which lens?

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romfordbluenose
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Re: D800 live view focus slow and noisy
In reply to CFynn, Jun 16, 2013

CFynn wrote:

Slow and noisy LV focus is happening with which lens?

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