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Author Topic: D90 video autofocus on zoom  (Read 3677 times)
Steve Last
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« on: May 13, 2009, 06:50:58 AM »
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Hi, can any of you who have made video using the D90 advise me whether an object which is intially in focus will remain in focus if I zoom in or out it in video mode? (I know it does not autofocus in video mode so I have a suspicion he answer will be NO, but can't find confirmation anywhere).  

I need some stills plus + video of buildings: the video would be slow pans on a tripod with zoom in and out to points of particular interest, and some walkaround shots. The other is for a safari holiday trip whjich would be mostly stills but occasionally switching into video without having to change (or even carry 2) cameras. Also, does anyone have any thoughts about using a Tamron 18-270 VR lens on a D90 for either stills or video?

Steve
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Morgan_Moore
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« Reply #1 on: May 13, 2009, 07:05:58 AM »
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Quote from: Steve Last
Hi, can any of you who have made video using the D90 advise me whether an object which is intially in focus will remain in focus if I zoom in or out it in video mode? (I know it does not autofocus in video mode so I have a suspicion he answer will be NO, but can't find confirmation anywhere).  

I need some stills plus + video of buildings: the video would be slow pans on a tripod with zoom in and out to points of particular interest, and some walkaround shots. The other is for a safari holiday trip whjich would be mostly stills but occasionally switching into video without having to change (or even carry 2) cameras. Also, does anyone have any thoughts about using a Tamron 18-270 VR lens on a D90 for either stills or video?

Steve

that depends on the lens - some sustain focus during a zoom - some dont

most likely the modern costly stuff (14-24) etc do while old and cheap dont

S
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Sam Morgan Moore Cornwall
www.sammorganmoore.com -photography
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