IPhone 6 low-light video vs photo

Discussion in 'iOS 8' started by philipandrews, Oct 11, 2014.

  1. philipandrews macrumors member

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    Oct 23, 2011
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    Richmond, VA
    #1
    Not sure if anyone else has noticed this but when taking a picture in low-light situations the field of view is very illuminated but when switching to video its as if all the lights are turned off. Anyone know what's causing this?
     
  2. ZEEN0j macrumors 6502a

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    Sep 29, 2014
    #2
    I've been wondering this as well. I have no real answer for you. But I noticed it first with my iPhone 5 when iPhone cameras started getting better at low light. Before the difference was much smaller. But it's getting bigger and bigger. My best guess is that when taking a picture the camera uses everything it has to offer. But with video it has to disable "features" to be able to record 1080p 30/60 fps video. That's my guess anyway.

    Edit: Also if you check slo mo video. It will be even darker. I just switched back to 30fps from 60 because I noticed 30 being slightly better in low light.
     
  3. SanjeevRana macrumors 6502a

    SanjeevRana

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    Aug 2, 2011
    #3
    I believe its a relation between ISO and Framerate ... its inverse if I am correct ...

    So higher framerate goes to lower ISO by default and hence dark...and vice versa
     
  4. lelisa13p macrumors 68000

    lelisa13p

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    Atlanta, GA USA
    #4
    If that's the case, how does one adjust or compensate for that?
     
  5. SanjeevRana macrumors 6502a

    SanjeevRana

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    Aug 2, 2011
    #5
    iOS doesnt allow granular ISO control ... exposure has just come in with iOS8 and flash ... thats about it
     
  6. philipandrews thread starter macrumors member

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    Richmond, VA
    #6
    Im guessing the only thing is to adjust in post? But that seems like a lot of work
     
  7. flux73, Oct 11, 2014
    Last edited: Oct 11, 2014

    flux73 macrumors 65816

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    May 29, 2009
    #7
    In photo mode, the shutter speed can be under 1/60th of a second, allowing greater exposure. When you use video (at 60 fps), the minimum shutter speed of each frame is 1/60th of a second. Thus, if proper exposure at a given aperture requires a slower shutter speed, each frame of that video will be underexposed - very dark video.

    As the second poster noted, you get better exposure with 30 fps because now each frame can have 1/30th second exposure (twice the amount of light per frame).

    With more lighting, you don't have a problem because the aperture can be decreased to adjust it to the required shutter speed.

    The only real solution is to increase the lighting. Adjusting it in post-processing is less than ideal because you'll only increase the noise along with the exposure, but you won't get additional detail.

    ----------

    This wouldn't matter anyhow. Presumably, the iPhone automatically adjusts the ISO and in a low light situation, it is already at its highest possible ISO. The only real way to "fix" this is to improve the sensitivity of the sensor (higher max ISO), or to have a lens with lower aperture (current limit is f/2.2). Until then, you have to increase the environmental lighting.
     
  8. mpfuchs macrumors regular

    mpfuchs

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    Sep 19, 2014
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    VA
    #8
    How do you change from 30 fps to 60 fps?
    There is the button in slo-mo, but this is for the regular video, and I didn't see the button there...
     
  9. Stuke00 macrumors 68000

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    Oct 11, 2011
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    Collinsville,IL
    #9
    It is in settings > photos & camera

    seems logical to look there, right?
     
  10. ZEEN0j macrumors 6502a

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    Sep 29, 2014
    #10
    Correct. Would be even more logical to be able to change it in the camera app. You can change 120-240 in slow mo mode but not regular video. I would love to be able to change it quickly depending on the situation.
     
  11. mpfuchs macrumors regular

    mpfuchs

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    Sep 19, 2014
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    VA
    #11
    It is, and I did look before I posted, guess I didn't look down far enough...
    Thanks for the tip though!
     
  12. EJ8 macrumors 6502a

    EJ8

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    Oct 13, 2010
    #12

    No, no actually it doesn't. It's seems logical to change the settings of the camera IN the camera app.
     
  13. Rogo117 macrumors regular

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    Sep 18, 2012
    #13
    I made a post about this a few weeks ago but never got any responses. It's pretty sad, my friends LG G3's low-light/night time recording is 50x better than my iPhones.

    Agreed.
     
  14. Tiptizzle macrumors 6502

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    Apr 22, 2011
    #14
    It's worse than the 5S? Here's a video comparing the cameras. They do a video test at night and said the 5S did better in low light. I don't care for the lens flare however.

    Still looking for an iPhone 6 video.

    https://www.youtube.com/watch?v=Bl1NqQIbaTM
     
  15. Tiptizzle macrumors 6502

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    Apr 22, 2011
    #15
    Just found their video with the iPhone 6. They say it also beats the G3 in lowlight video.

    G3 still has less lens flare and does better with the flash though for photos.
     
  16. T-Will macrumors 6502a

    T-Will

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    Sep 8, 2008
    #16
    I've lightened up what appeared to be unusable slow-motion video using the Videon app, so I'd recommend that for post editing.
     

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