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Files slow clearing during tethered download

Permanently deleted user
I am now using a trial of C1 7.2 with my Macbook Pro running 10.8.2.
Tethering seems to be working fine with the 5D III. It seems to be taking a long time for the previews to clear.Much longer than I am used to with C1 6. Is there something I can do to speed things up since the majority of what I shoot is people.
Thanks
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  • Drew Altdo
    Speed is going to depend greatly on;
    - The Camera
    - The connection
    - The computer hardware

    Capture One will access the file as soon as it is available and has very little to do with acquiring the image from the camera, this is done by the Canon software integrated in Capture One.
    I would suggest you be sure;
    -There is no CF card in the camera
    -You are using a USB that meets the specification made by Canon (3 Meters I believe)
    -You are capturing to the local computer HD and not an external source, also the faster the drives the better.
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  • Permanently deleted user
    Thanks Drew,
    I am following all the rules. No card etc.
    Today back on my desktop not tethered I selected a file from the capture folder. The image appeared pixelized and did not snap into a clear image. Could the Open CL have anything to do with this?
    Lanny
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  • Drew Altdo
    [quote="Lanny " wrote:
    The image appeared pixelized and did not snap into a clear image.


    Ever or just not in a timely manner?
    If it NEVER got sharp it suggests something isn't running in the software, if it just took some time then we need to quantify that time so we can determine if it is slow or just slower than you would like 😉
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  • Ron82
    In Testing CaptureOne 7.0.2, I am happy to say that I am finally able to tether my Canon again without being on v6.4.3.
    I do notice a huge slowdown in import speed though.
    I did a side by side comparison of 6.4.3 and 7.0.2. on the same machine, using the exact same camera.
    Doing a 5 frame burst took around 40 seconds to fully import in 7.0.2, while the same burst only took 18 seconds in 6.4.3.

    Is this what to expect, or am I missing something?
    I was using a Macbook Pro, 2.66 GHz Intel Core Duo with 4GB 1067 MHz DDR3 Ram.

    Please advise, I would like to upgrade the software, but I can't afford this slowdown.
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  • Drew Altdo
    It's important to remember that it's all relative. Your machine is not my machine, so performance has no hard and fast rule.

    [quote="Ron82" wrote:
    I was using a Macbook Pro, 2.66 GHz Intel Core Duo...


    Are you sure this is correct? I assume you meant Intel Core 2 Duo, which makes all the difference 😉

    The machine I think you are using is a Penryn Processor. This is certainly an OK machine but only meets the minimum system requirements of Capture One 7. This means that OpenCL is not an option, and available RAM is at the absolute minimum.
    As such, Capture One 7 would of course be slower than Capture One 6, this is just the nature of technology. A more demanding software using the same hardware as a less demanding software will certainly be slower. Like adding more weight to a Honda Civic, the engine will struggle.
    As noted above the speed will mostly depend on your hardware, so this same system with 8GB of RAM and an SSD drive (shooting to the SSD would be crucial) will speed up significantly.
    [quote="Ron82" wrote:
    Doing a 5 frame burst took around 40 seconds to fully import in 7.0.2, while the same burst only took 18 seconds in 6.4.3.

    With this in mind the other thing to consider is what you are actually measuring. Is it the time it takes from the first shutter action to the files being present in the browser, or the time it takes from the first shutter action the the last of five images being fully rendered? The rendering in Capture One 7 is much more robust, with more options (preview size) and more complex algorithms being applied to the image by default (lens correction, Noise Reduction, etc) so Capture One 7 is doing roughly twice the amount of work that Capture One 6 did. Couple that workload with the fact that your machine cannot take advantage of OpenCL... you've got a recipe for slower tethered operation.
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