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Type: Posts; User: davedv

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  1. Sticky: The rolling shutter tests from Slashcam for the...

    The rolling shutter tests from Slashcam for the R5 report essentially the same numbers as CineD:...
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    2,449

    It's nice to see that they increased the number...

    It's nice to see that they increased the number of counter balance steps to 15 on all of the Aktiv heads and they bumped up the number of pan and tilt drag steps to 7 on the Aktiv 8 and Aktiv 10...
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    3 frames of latency is actually pretty good for...

    3 frames of latency is actually pretty good for wi-fi monitoring on a phone. In order to transmit video over wi-fi network bandwidths typically requires some form of video compression, which would...
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    The BGH1 is actually a bit closer to having full...

    The BGH1 is actually a bit closer to having full V-Log, since it has a modified version of V-Log L with 8-stops in the shadows and 5-stops in the highlights (13 stops total), as compared to say V-Log...
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    Yes, the Blackmagic URSA Mini 12K ships with a PL...

    Yes, the Blackmagic URSA Mini 12K ships with a PL mount and the URSA Mini G2 ships with an EF mount. Both cameras have user-interchangeable mounts though, so you can swap it with a different mount if...
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    "Entertainment companies that invested in Quibi...

    "Entertainment companies that invested in Quibi got sweetheart arrangements known as "round-trip" deals -- their investments were essentially paid back to them by producing Quibi programming." (CNET)...
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    It doesn't seem too likely that Quibi's demise is...

    It doesn't seem too likely that Quibi's demise is due to bad timing as a result of the pandemic either. Apparently nearly half of households worldwide have subscribed to at least one new streaming...
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    On Windows they have added support for hardware...

    On Windows they have added support for hardware accelerated decoding using discrete NVidia or AMD GPUs as well as supporting the hardware decoding in Intel processors. And if you have multiple...
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    This is a welcome addition to Premiere, but its...

    This is a welcome addition to Premiere, but its kind of crazy how long it took Adobe to add support for hardware accelerated decoding.

    Intel first added Quick Sync hardware accelerated...
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    1,338

    For a single-chip, bayer pattern sensor (as used...

    For a single-chip, bayer pattern sensor (as used by most modern cinema cameras), RAW video takes up less space than de-bayered baseband video that would typically be sent over an SDI or HDMI cable....
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    My understanding of V-Log L is that it is...

    My understanding of V-Log L is that it is essentially the same log curve as is used in full V-Log, but truncated in the top portion. So where full V-Log has 8-stops above and 8-stops below middle...
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    785

    JPEG XS and H.266 are two different codecs for...

    JPEG XS and H.266 are two different codecs for two different purposes.

    JPEG XS is a lightly compressed (visually lossless) codec with very low latency. This is a line-level compression codec so...
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    Note that given the sensor readout times of the...

    Note that given the sensor readout times of the URSA Mini 12K, it seems like the camera only does a full readout of all the sensor pixels when shooting in 12K:...
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    Yes, this is technically possible, but it is not...

    Yes, this is technically possible, but it is not simple due to the fact that the Odyssey 7Q only has 3G SDI ports. The Odyssey 7Q+ actually included hardware changes to both the HDMI input and the...
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    This is interesting, but the unlimited record...

    This is interesting, but the unlimited record times were done at cooler than normal (15C / 59F) ambient temperatures, and it seems like you still need an external fan pointed at the camera to enable...
  16. On the topic of sports, these video highlights...

    On the topic of sports, these video highlights from the semifinals at the French Open are a pretty good example of the dynamic range challenges in shooting live sports.

    The lighting was fairly...
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    The RF mount 85mm f/1.2 is considerably faster in...

    The RF mount 85mm f/1.2 is considerably faster in terms of autofocus speed than the EF 85mm f/1.2 version. There's a brief comparison in this video: https://youtu.be/Qdt7uAyGCJw?t=324

    Among...
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    If you are referring to the Lumix Tether for...

    If you are referring to the Lumix Tether for Streaming software, that has been out since June (https://www.panasonic.com/global/consumer/lumix/lumixtether.html). And they released an update at the...
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    A few assorted observations from the spec sheet:...

    A few assorted observations from the spec sheet:


    Dual native ISO of 400/2000 is slightly different from the GH5S (400/2500). Other cameras using a similar Micro 4/3 sensor are the Pocket Cinema...
  20. If anyone is interested in the technical details...

    If anyone is interested in the technical details of the development and engineering that goes in to a camera like this, there is a huge amount of information in a series of blog posts from Shane...
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    GH5 Those specs are the same size as the GH5S sensor....

    Those specs are the same size as the GH5S sensor. The GH5S sensor is larger than the GH5 sensor, due to the fact that it is multi-aspect ratio sensor. So the sensor area fills the full Micro 4/3...
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    Since it's only a 10-megapixel sensor, there is...

    Since it's only a 10-megapixel sensor, there is no oversampling or pixel binning when doing a 4K (8-megapixel) 17:9 or 16:9 readout. The additional 2-megapixels are only used when doing a 4:3 readout...
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    From the physical dimensions it seems to be very...

    From the physical dimensions it seems to be very similar to the form factor of the Z Cam E2, or actually about a half inch less in depth and 200g (7 oz.) lighter than that camera. So it's a camera...
  24. Thread: Panasonic S5

    by davedv
    Replies
    275
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    17,443

    It's actually worse than that. The Sigma MC-21 EF...

    It's actually worse than that. The Sigma MC-21 EF to L-mount adapter only supports single-shot autofocus. It does not support continuous autofocus (AF-C) in video mode at all. So you can't even try...
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    According to the CineD lab tests, the rolling...

    According to the CineD lab tests, the rolling shutter performance for the R5 sensor in 8K RAW is 15.5ms, which suggests that the sensor is actually capable of a full 8K (17:9 aspect ratio) readout at...
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