VIOFO A119S (IMX291) & Street Guardian SG9665GC V2 (IMX322)

Discussion in 'Side by Side Comparison' started by harsh, Jan 13, 2017.

  1. harsh

    harsh Well-Known Member

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    Dash Cam:
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    VIOFO A119S (F.W V. 1.0) - 1080p @ 60 FPS, WDR - On, CPL - Yes.

    A119Sdetails.png A119S2.png

    Street Guardian SG9665GC V2 (F.W V. Update 4) - 1080p @ 30 FPS, WDR - On, Metering - Centre, Contrast - Medium, CPL - Yes.

    GCdetals.png GC2.png

    Early evening - 1

    A119S



    https://drive.google.com/open?id=0B97KXpJ3jAfRV3lhTExRRnFjOVk

    SG9665GC V2



    https://drive.google.com/open?id=0B97KXpJ3jAfReGVjRHJWdFprakE

    Combined




    Early evening - 2

    A119S



    https://drive.google.com/open?id=0B97KXpJ3jAfRQ1hxWjZmX3U5OXc

    SG9665GC V2



    https://drive.google.com/open?id=0B97KXpJ3jAfRa3d4V3gtTkR4blk

    Combined




    Evening - 1

    A119S



    https://drive.google.com/open?id=0B97KXpJ3jAfRT3VveTJKVFJTejg

    SG9665GC V2



    https://drive.google.com/open?id=0B97KXpJ3jAfRNURnQ0J2am5pNDQ

    Combined

     
    Last edited: Feb 27, 2017
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  2. harsh

    harsh Well-Known Member

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  3. alexsoll

    alexsoll Well-Known Member Retailer

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    @harsh , thanks for the joint test, but with CPL, did not disclose the full picture of the real definition optics,
    and especially in the evening / night
    ==========
    supplement for information:
    ==========
    A119S

    Format : MPEG-4
    Format profile : Base Media / Version 2
    Codec ID : mp42 (mp41/mp42/isom)
    File size : 145 MiB
    Duration : 1 min
    Overall bit rate mode : Variable
    Overall bit rate : 20.3 Mb/s
    Movie_More : DEMO1
    Encoded date : UTC 2017-01-12 15:26:56
    Tagged date : UTC 2017-01-12 15:26:58
    Origin : NOVATEK

    Video
    ID : 1
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L5.1
    Format settings, CABAC : Yes
    Format settings, ReFrames : 1 frame
    Format settings, GOP : M=1, N=15
    Codec ID : avc1
    Codec ID/Info : Advanced Video Coding
    Duration : 1 min
    Source duration : 1 min
    Bit rate : 20.1 Mb/s
    Width : 1 920 pixels
    Height : 1 080 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Constant
    Frame rate : 60.000 FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.161
    Stream size : 144 MiB (99%)
    Source stream size : 144 MiB (100%)
    Title : Core Media Video
    Encoded date : UTC 2017-01-12 15:26:56
    Tagged date : UTC 2017-01-12 15:26:58

    Audio
    ID : 2
    Format : AAC
    Format/Info : Advanced Audio Codec
    Format profile : LC
    Codec ID : 40
    Duration : 1 min
    Source duration : 1 min
    Bit rate mode : Variable
    Bit rate : 96.0 kb/s
    Channel(s) : 1 channel
    Channel positions : Front: C
    Sampling rate : 32.0 kHz
    Frame rate : 31.250 FPS (1024 spf)
    Compression mode : Lossy
    Stream size : 703 KiB (0%)
    Source stream size : 705 KiB (0%)
    Title : Core Media Audio
    Encoded date : UTC 2017-01-12 15:26:56
    Tagged date : UTC 2017-01-12 15:26:58

    =====================

    SG9665GC (V2)

    Format : MPEG-4
    Format profile : QuickTime
    Codec ID : qt 0000.00 (qt )
    File size : 110 MiB
    Duration : 59 s 998 ms
    Overall bit rate : 15.4 Mb/s
    Movie_More : Street Guardian
    Encoded date : UTC 2017-01-12 15:27:05
    Tagged date : UTC 2017-01-12 15:27:06
    Writing library : Apple QuickTime
    Origin : NVT-IM

    Video
    ID : 1
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L4.1
    Format settings, CABAC : Yes
    Format settings, ReFrames : 1 frame
    Format settings, GOP : M=1, N=15
    Codec ID : avc1
    Codec ID/Info : Advanced Video Coding
    Duration : 59 s 998 ms
    Source duration : 1 min
    Bit rate : 14.7 Mb/s
    Width : 1 920 pixels
    Height : 1 080 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Constant
    Frame rate : 30.000 FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.237
    Stream size : 105 MiB (96%)
    Source stream size : 106 MiB (97%)
    Title : Core Media Video
    Language : English
    Encoded date : UTC 2017-01-12 15:27:05
    Tagged date : UTC 2017-01-12 15:27:06

    Audio
    ID : 2
    Format : PCM
    Format settings, Endianness : Little
    Format settings, Sign : Signed
    Codec ID : lpcm
    Duration : 59 s 998 ms
    Source duration : 59 s 998 ms
    Bit rate mode : Constant
    Bit rate : 512 kb/s
    Channel(s) : 1 channel
    Sampling rate : 32.0 kHz
    Bit depth : 16 bits
    Stream size : 3.66 MiB (3%)
    Source stream size : 3.66 MiB (3%)
    Title : Core Media Audio
    Language : English
    Encoded date : UTC 2017-01-12 15:27:05
    Tagged date : UTC 2017-01-12 15:27:06
     
    Last edited: Jan 15, 2017
  4. Sutton

    Sutton Active Member

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    One SG9665gc.. Two Viofo A119.. Three A119S
    Is it my imagination .... The A119S is much sharper and much clearer But how can that be
     
  5. alexsoll

    alexsoll Well-Known Member Retailer

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    1. Frame rate : 60.000 FPS / 20.3 Mb/s vs 30.000 FPS / 14.7 Mb/s
    2. different polarizing filters
    3. I see blurry the red stop-lamps of the car, the lens is not very clean
     
  6. harsh

    harsh Well-Known Member

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    With most users (me included) leaving the CPL filter attached all the time, comparing them with their respective CPL's felt like a better one to start with.

    I'll add videos without a CPL within a few days.
     
    Last edited: Jan 15, 2017
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  7. harsh

    harsh Well-Known Member

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    The lens and windshield were both clean, it's the smog/haze in the air making it look like that, all street lights and car stop-lamps were flaring the same when observed by sticking my head out a bit from the driver's side window.

    I don't have the new single glass filter from SG.
     
    Last edited: Jan 16, 2017
  8. Sutton

    Sutton Active Member

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    Your opinion from the above 2 which has better hardware and which one did you like better with the above comparisons.
     
  9. alexsoll

    alexsoll Well-Known Member Retailer

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    first, distant impression - a worthy model.
    need 6-12 months of use, this will display information about the reliability of the device, the manufacturer support, etc.
    I hope the manufacturer will always there and ready online to answer users ' questions
     
  10. Sutton

    Sutton Active Member

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    One SG9665gc.. Two Viofo A119.. Three A119S
    Thanks for speedy reply
     
  11. thancam

    thancam Well-Known Member Retailer

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    Your test have a problem. Your aiming in two camera is not the same. Result of it is: the bright of two image in dark area totaly diffirent.
    After quick look in youtube, my conclusion is: 50:50 although bitrate of A119S is much higher than SG. When catching moving object, image of A119S is sharper than SG.
     
  12. harsh

    harsh Well-Known Member

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    https://dashcamtalk.com/forum/threa...ra-post-your-pictures.502/page-45#post-311534
     
  13. thancam

    thancam Well-Known Member Retailer

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    [​IMG]
    Or maybe focus mode on SG is central, so it focus more on sky. I explain in this pic.


    [​IMG]
    in static scene, it's hard to tell: which one is sharper (in my eyes)
    and SG have a larger FOV, which mean everthing in SG will small and less sharp than A119.
    Everthing in larger FOV will seems smaller and therefor hard to see than less FOV. But larger FOV has more object than less FOV. This matter was disscussed many time on board.
    example:
    [​IMG]
    Reading license plate very easy in this pic.
    [​IMG]
    harder than doing so in this pic,
     
    Last edited: Jan 16, 2017
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  14. harsh

    harsh Well-Known Member

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    I'm using centred metering with the GC, don't know what's been implemented by VIOFO as there's no option for a user selectable metering on V. 1.0 of their firmware.

    Mounting of the camera and aiming of the lens was corrected before the videos were recorded. Both are on the 2nd last click of the adjustable lens and the dashboard + bonnet coverage looks identical.

    If you have any pointers on mounting and angling it better, please do elaborate, I'll redo it before comparing them without the CPL.
     
  15. thancam

    thancam Well-Known Member Retailer

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    You can aim them so they can share the same horizon. And i think Viofo using average AE, you can use the same mode with GC.
     
  16. TonyM

    TonyM Well-Known Member

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    The A119S has a wider dynamic range than the SG. Thus in the dark areas the A119 is a bit brighter, whilst in the light areas the A119S is darker. The result is that the SG appears to have more contrast, making some details like number plates easier to read. However the A119S actually preserves more detail with less clipping of the shadows and highlights (where detail is lost to complete black or white). Which is better is down to individual preference.

    The increased blur on the SG is due to using a longer exposure time. The more sensitive IMX291 and/or use of higher ISO in the A119S results in a shorter exposure and thus less motion blur. I can't remember if the A119S has a wider aperture lens than the SG.
     
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  17. thancam

    thancam Well-Known Member Retailer

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    they use the same sensor, so they have the same wide dynamic range.
     
  18. harsh

    harsh Well-Known Member

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    I think it's centre from my assessment but that's again speculation. I've tagged Viofo with this question in a different thread, will wait for them to confirm.

    They don't. You seem to be confused about the specifications.
     
    Last edited: Jan 17, 2017
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  19. thancam

    thancam Well-Known Member Retailer

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    thanks for reminding me about the specs. :) I was wrong about the specs.
    But if two image has diffirent wide dynamic range means: the darker area is brigher and the light area is not overexpose. And in this video, i dont see that.
    With EV setting, you can change the brighness of image just like when you use VLC software:

    So, if the darker area is brigher, and the light area is nomal. When you use VLC player to increase contract, the light area will not be overexpose. And when that, i shall call A119S or any dashcam have better wide dynamic range.
     
  20. Street Guardian USA

    Street Guardian USA Well-Known Member Retailer

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    A better comparison would be against the 2017 SG9665GC V3 (with updated Lens) but you only have a V2 there obviously.
     
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