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Sony A7s, FHD camera, with 12Mp sensor, big DR
  • 1100 Replies sorted by
  • philiplipetzphiliplipetz

    Lower DR than a7r at 100 ISO but the same at 200, and two stops greater at 12,800.

  • Vitaliy_KiselevVitaliy_Kiselev

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  • Pedro_ESPedro_ES

    Great low-light capabilities, but the dynamic range is lower than expected

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  • Pedro_ESPedro_ES

    Review by dxomak! http://www.dxomark.com/Reviews/Sony-Alpha-7S-sensor-review-New-low-light-champ

  • Vitaliy_KiselevVitaliy_Kiselev

  • xenogearsxenogears

    All Sony cameras has the 30min limit, even been NTSC, the only one that has not limit on recording time are the Lumix cameras. I guess that a external recorder could avoid this limit but just if the a7s doesn't require to press record on camera to send the signal with full quality.

  • Pedro_ESPedro_ES

    It seems that Dxomark is reviewing the camera: https://www.facebook.com/DxOMark

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  • philiplipetzphiliplipetz

    A Sony show rep said all cams have 30 minute limit, but show reps are frequently misinformed.

  • whynotwhynot

    Thanks. Hope you are right about the limit being only for Europe. Maybe thinking of getting one in Australia.

  • balazerbalazer

    The a7S has an internal recording limit of 30 minutes, if I remember correctly from reading somewhere. (Might be just for Europe) I can't imagine why there'd be any limit for external recording.

  • whynotwhynot

    Does the Sony A7s have a recording time limit of 30 mins for video? If it does would that also be present for external recording via an Atomos Shogun? Anyone know? Could not find any mention of it in the specs.

  • minhminh

  • minhminh

  • Vitaliy_KiselevVitaliy_Kiselev

  • philiplipetzphiliplipetz

    The key will be how the video image looks in HD. Not really tested.

    Two wrongs don't make a right.

  • Vitaliy_KiselevVitaliy_Kiselev

    This means that the native A7s image had more DR than the native A7r image that DxOmark rates at 14 stops.

    They even explained why they did it. DXOMark also do the same. Otherwise you can check FAQ.

  • philiplipetzphiliplipetz

    Luminous landscape downsided the A7r image to get to the same resolution as the A7s and this increased the color depth in the same way as downsizing a GH4 4k image to HD does. In fact it is almost the identical downsize. This means that the native A7s image had more DR than the native A7r image that DxOmark rates at 14 stops.

  • Vitaliy_KiselevVitaliy_Kiselev

    http://www.luminous-landscape.com/reviews/cameras/sony_a7s_first_impressions.shtml

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    Based on these tests as well as my day-to-day shooting I do not see any obvious difference in dynamic range between the two camera. Many people had speculated that the larger pixels of the A7s would produce wider dynamic range capability. Not that I can detect. It will take someone with a full testing lab to determine if there is any gain in DR or not, but I don't see it..

    On the basis of these tests I would judge the A7s to have almost a three stop advantage over the A7r between ISO 6,400 (which is as high as I would use on the A7r) and ISO 51,200 where the A7s reaches its useful limit (for my type of shooting).

    http://www.luminous-landscape.com/reviews/cameras/sony_a7s_first_impressions.shtml

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  • apefosapefos

    the video above shows that in iso 51200 the image starts to tremble near the lamps. So probably after denoise the edges of objects will keep trembling. so maybe my supposition was correct, the maximum safe iso will be around 25600 / 32000.

    Also the difference from slog2 to other was a small lift in shadows so maybe dro5 will be better to get almost same dr without flatten the image.

  • AusboyAusboy

    That looks really good. Not the brightest day outside but it deals with the high contrast gracefully IMHO. Not bad

  • philiplipetzphiliplipetz

  • last_SHIFTlast_SHIFT

    You guys are being too sensitive - it hasn't even been released yet. Hold on for fuck's sake. If it's not one thing it's another...

  • Ian_TIan_T

    With little to no "real" advertising on this camera I'd speculate Sony already lost a lot of potential sales. I don't care how good this camera comes out to be to me it's a bit arrogant of them.

  • sammysammy

    Are we ever gonna see a "normal" test ? the camera is less than a month away and all we are seeing is this extreme this and extreme that.

  • tinyrobottinyrobot

    Rolling shutter in the above video doesn't look any different than any other dslr or mirrorless.

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