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6683 posts

Uber Geek
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  Reply # 1560485 27-May-2016 09:41
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Linuxluver:

 

GoPro lenses are very fish-eyed. Unless the camera were to be consistently within about 2 metres of your son at all times the result would probably be quite useless...."That tiny, wee swimmer way off in the distance....can barely see him.....oh...he's only 5-10 metres away." 

 

 

 

 

The new GoPro Hero 4 models do the field of view quite well.  The sensor is a 12MP native unit, so at Full HD (2MP) this is down scaled significantly.

 

When you switch to Medium or Narrow field of view, they take a smaller segment, say 8MP closer to the middle of the sensor, and use this to scale down to the Full HD output.

 

Narrow is really small, closer to a 1:1 sample in the middle.

Noise can become an issue, because you're not getting the averaging benefits of a major down scale, but that may not be an issue at all depending on your use requirements.  Also, pick a suitable frame rate, beering in mind the effect on exposure and motion blur.  Higher frame rates give less motion blur, but require more light (or a higher ISO) to maintain the same correct exposure.

 

 

 

Point is, you can change the field of view on a GoPro without applying digital zoom.  The resulting output is pretty good, and this gets away from that tiny guy in the distance issue.


https://www.cinema5d.com/firmware-quality-modes-gopro-hero-4-black-analyzed-compared/

 

http://abekislevitz.com/understanding-your-new-gopro/


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  Reply # 1560726 27-May-2016 14:17
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Yup seen it Jaxson! I'm on the Facebook groups for them. So I knew about it aaaaaagggggeeessss ago ;-)

Pity it has had such a large leap in price over the original. But a leap forward in specs too!

And give it 6 months and we'll see prices plummet down to something cheaper when on special. Price of it is already dropping on some stores :-D




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  Reply # 1560798 27-May-2016 15:12
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dman: Yup seen it Jaxson! I'm on the Facebook groups for them. So I knew about it aaaaaagggggeeessss ago ;-)

Pity it has had such a large leap in price over the original. But a leap forward in specs too!

And give it 6 months and we'll see prices plummet down to something cheaper when on special. Price of it is already dropping on some stores :-D

 

 

 

Sweet as, yeah I've joined the pages too.  Had them on about being a beta tester/reviewer, but so did half the world so not holiding my breath wink

 

 

 

No formal word on the bit rates compared to the GoPro Protune modes, but I do like specs for the price, and this one has gyro's built in to provide electronic stabilisation when you record at lower than 4k.


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Ultimate Geek
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  Reply # 1562687 30-May-2016 22:17
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Haha I hoped to be a beta tester too! ;-)




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