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Posts: 323

Re: Gopro 7 black - hyperstab works bad on local lights

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@attractionspot wrote:

Your not alone! Im facing this same exact issue in low light siuations. I have it on 2.7K 60 fps and hypersmooth on as with 4K you can't do hypersmooth and the video looks horrible! GoPro needs to fix this asap as all my footage I shot in low light for my business is unusable on my work trip to Orlando and now im not there to reshoot it with my other low light camera.

How do you propose Gopro rewrites the laws of physics? 


You have a small sensor with a small surface area which means that only a small amount of light can hit the sensor. 


To compensate for the lack of light the camera has to leave the shutter open for longer. 


Because the user cant hold the camera 100% steady the camera wobbles and the image moves across the sensor drawing the streaks of the motion blur on the frame as the shutter is open. 


Now the EIS records that the cameara has moved and in order to present as stable an image as possible moves the image about so that it looks to be in the same place as the previous ones.  However because the camera moved when the shutter was open there is NOTHING the camera can do about the electric spaghetti appearing on screen - this is an artifact of the motion trails.


If you check the video again you'll notice that despite the pulsing mess of light caused by the motion trails that everythin is remaining in generally the same place - showing that the EIS is working.


If you're observant you might also have noticed that the pulses coincide with the steps oif the operator.  This is what is causing the shakes and jiggles that move the camera.  The same shakes and jiggles that are causing the motion blur and the same shakes and jiggles that the EIS is compensating for.


@attractionspot wrote:


I also would rather have GoPro make a bigger camera model in trade for bigger sensor for better low light as the noise on the videos is almost unbareable.


A larget sensor would have a larger image circle.  This needs a proportionally larger lens.  Which needs a proportionally larger houseing.  Smaller sensors give a larger depth of field than larger sensors so you wouldn't get the same result as a gopro - you would have a narrower sweet spot and everything else would be progressively blurier.


The Gopro is an action camera.    Try looking at a Panasonic camera for a 4k  camera with better lights or even look for a second hand ZCam E1.  These have Micro Four Thirds sensors which have about 10 times the surface area of the sensor in the GoPro.  Having said that Micro Four Third camearas are known to have poor low light capabilities because of their SMALL sensor.  To get the best out of the GH5S Panasonic dropped the resolution of the sensor down to 10 megapixels - so that's a sensor with 10 times surface area of the 1/2.3 sensor in the gopro needing to have a lower resolution for best low light performance.