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Mark,
I don't think the first image was recorded on the Flash XDR. It's in the frame with the camera. This looks like a behind the scenes shot taken with a separate digital camera. |
Dear Michael,
That is correct. This was a shot just to show the setup. We have numerous mounting options available as well as powering options. |
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Dear Friends,
Richard Welnowski asked me to post this latest image. This is the the same frame that we posted earlier, but using a better technique to capture the image. This is a frame grap from the Viper's footage, as recorded by the Flash XDR at 100 Mbps. http://convergent-design.fileburst.c...XDR-sf29-c.tif This replaces the frame grab ending in ...-30p.tif And this one replaces the -24p.tif http://convergent-design.fileburst.c...XDR-sf24-c.tif |
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Does he have the RAW images that came off the thing? I'd imagine many shooters have not see RAW Viper images and have nothing to compare these images to. |
Dear Perrone,
I believe that, for these Flash XDR test shots, all recording was done in the Flash XDR at 4:2:2 HL and 100 Mbps. I do not believe any other HD recorder was used. |
So, are we looking at the Viper in HDStream mode (don't think so) or in the YCrCb mode, which would show color corrections and so forth made in the camera?
I'm not sure what the Flash XDR can ingest from the Viper. |
Dear Perrone,
I will get the answer to your question from Richard. I do know that he put the Viper in 4:2:2 mode so that we could work with the HD-SDI output. |
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Dear Perrone,
Richard responded to my request and your questions: (He responded very quickly, the delay has been on my part.) I only record 4:2:2 YCrCb format to Flash XDR. I could record HD Stream 4:2:2 also, but Viper is a 10bit and XDR is 8bit, therefore after I will have to grade image in 8 bit, which I do not think is good idea and will complicate workflow in post. I setup the color balance, and all other parameters in the camera and used single HD-SDI processed signal to feed the Flash XDR. If XDR becomes a 10-bit device I will record in 10-bit log output HD Stream and will grade the image later, this will give more flexibility in grading the final image in post. Also with FilmStream and HD stream bypassing the processing, this increases the quality of image, especially noise in dark parts of image and you can gain couple of f-stops latitude. Richard So, he recorded in HD-SDI 4:2:2, with the image pre-processed in the camera, so that the Flash XDR directly recorded the desired image. This allows for a faster workflow in the Non-Linear Editor, exactly what Richard was wanting. When we have Full Uncompressed with 10-Bit / 8-Bit available as an option, then Richard will have his choice of how to record out of the Viper. The Flash XDR cannot handle 4:4:4, it has to be 4:2:2. |
Yea, the HDStream is 4:2:2 but 10-bit. Wasn't sure if you guys could handle that. Keep up the good work on this unit. I've spent a bundle in the past 8 months moving to HD here at the office, and still have more to go. I'd love to get one of these units in the future though.
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Just because you record in 8 bit doesn't mean you have to post in it...
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