major reasons for making panny better in video than oly

Started Jun 30, 2013 | Questions thread
Guy Parsons
Guy Parsons Forum Pro • Posts: 30,331
Re: major reasons for making panny better in video than oly

j9300 wrote:

oh, I see.

So, then unstable AF with shallow depth lens would happen to panny 4/3, too.

good to know!

Yes, C-AF will "pump" as it tries to settle on what it thinks is the right focus point, for instance I tried to video a smooth surfaced train moving out of a station, the AF locked on a window, then pumped on the white bit between until it found another window or door to focus on. All the way down the train it pumped in and out.

Better to use a very small aperture and S-AF or manual focus to stop the pumping and have a good depth of field, plus of course a slower shutter speed usually gives a smoother effect.

Saying all that I have very little video experience, rarely use it, but those facts seemed to have emerged in my own experience and from reading this forum.

Regards...... Guy

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