In an ideal world on a long shoot day, I would keep my San Disk on reserve for any raw recording needs and use my 3 Intel 320's for recording my pro res. It seems that Black Magics approved list of SSD's might all be rated based on their need to be fast enough to record Raw.as that will simultaneously guarantee they will be fast enough for Pro Res. My San Disk Extreme 480 GB SSD for my BMCC is rated fast enough for Raw but I am wondering if something similar might not apply to the BMCC as does the BMPCC? In other words, are the data rates for pro res slow enough that other less expensive SSD's (like the 3 Intel 320's I already own and use quite successfully in my Samurai to record the exact same data stream (10 bit Pro Res HQ 4:2:2) to my Sony F3. What I am trying to find out is what recording options I have internally on the camera, i.e.: whether or not alternate (slower) drives might work for pro res recording?įor instance, the Black magic Pocket Cinema Camera will record to 45mbs SDHC cards if you are recording to pro res files, but you need to step up to much faster 95mbs SDHC cards if you want to record raw. When I want to keep it stripped down and minimal I can do so. Part of the reason I bought the BMCC is that it is an amazing camera in more or less a DSLR size package. There are many reasons why I do not wish to do so, not the least of which is that it adds yet another component to a rapidly growing footprint-more wires, more power requirements, more bulk and rigging. I clearly understand I could use the Samurai as a recording option. However, having said all that.if you have a Samurai already, why don't you just record the SDI out to your Samurai? Problem solved. The camera doesn't even have basic file access/management of the contents of the SSD. Some of it's other features, audio for example, are not as advanced. Most of it's innovation comes from how well it captures images. So it has many advanced features and can accept many different media type. Sean mclennan wrote:The Atomos Samurai is a recorder. It is more complicated than just appearing to meet the write speed specifications (which SSD vendors politely decline to share with you beyond stating their minimum write criterion). The lack of a buffer means the device must precisely keep up with the write instructions from the processor without a few moments for the SSD to catch up while the SSD controller might be doing something else internally for a moment. I believe John Brawley has said elsewhere that the camera processor records directly to the SSD without using a buffer so that is why you can get some dropped frames while the camera can continue to record the clip. Not a guarantee once the camera heats up or is laboring on long record times they won't but from a testing standpoint they seemed to perform as well as in my samurai. Seems like one might need inside technical info to answer it.įor instance, I just tried an Intel 160 gb SSD internally and in spite of what Black Magic Speed test indicated it recorded Prores without dropped frames. Patrick Finnegan wrote:I would love to get an answer on this from someone in the Black Magic team if they read this? Here is an example of a delightful woman demonstrating this very phenomenon on you tube, along with frame comparisons of the two Pro Res recordings, internal and externally recorded, side by side: Is there something about the way the BMCC records internally that bottle necks the data from the sensor that the sdi output does not? I am confused why if I use an external recorder I have no problem with record speeds even doing 3:2 pull down on the fly that I do with that same drive mounted internally? Yet, if I plug my Atomos Samurai into BMCC, I can record that same sensor data stream to any number of slower drives, even including a spinning disk drive and result in perfect 10 bit Pro Res files without a single dropped frame? For instance, I have several Intel 320 160gb SSD drives that the Black Magic Disk speed test says will not be fast enough for 1080p pro res recording. If I want to record Pro Res 4:2:2 10 bit internally on the BMCC there are a select number of drives rated fast enough by Black Magic to keep up with the data stream. I am confused by something and maybe someone can clear it up for me?
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