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11-20-2018 08:00 PM - edited 11-20-2018 08:01 PM
Linear Mode for 4K
[ New ]Do you think or does anyone know if GoPro will have a linear mode for 4K. 2.7k linear is okay and is a decent option to post software correction, but I was thinking, rather hoping that once they released the Hero 7 black, eventually they would add linear in the next update. So far, that has not happened.
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11-20-2018 10:53 PM
Re: Linear Mode for 4K
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11-20-2018 10:53 PM
Re: Linear Mode for 4K
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11-21-2018 01:39 AM
Re: Linear Mode for 4K
[ New ]N=Booneknowsif hopro cando Linear in 4K but maybe they will look int othat on the Hero 8 next time stay tuned a firmware upgrade is coming in December but who knows whatto expect on that use the editor and crop jus a li and youget simulaer results
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11-21-2018 01:53 AM
Re: Linear Mode for 4K
[ New ]Perhaps when there's a 6k Hero out they will have a 4k linear mode. In order to produce a linear image the camera needs extra resolution to be able to apply a distortion.
To correct the lens distortion it needs to take a fish eye image
Apply a pin-cushion distortion to it
then crop out the usable central area at the required resolution
as you can see there is an amout of overshoot necessary to give a clean image. The closer you get to the edges of the undistorted image the lower the quality as the original pixels have been stretched to take up more space
You can always do the conversion in post if you want to get the most out of the image and don't mind the black bars. Gives it as (not so) cinematic wide screen look (minus the shallow depth of field, Bokeh, etc)
https://www.youtube.com/watch?v=RWO_IktMGMQ
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11-21-2018 08:29 AM
Re: Linear Mode for 4K
[ New ]
You can do LINEAR stills on both Hero5, 6 and 7 so the missing LINEAR 4K function is basically only due to missing processing power at 4K IMO. While there might be some scaling of pixels this is insignificant.
For now use lens correction / dewarp functions in the video editor. Or use 2.7K and just upscale to 4K for You Tube, ;-) At least if not all your shoots are GoPro and/or LINEAR this is a workable approach.
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11-21-2018 09:08 AM
Re: Linear Mode for 4K
[ New ]mybad what I wrote sorry