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  #1 5D II Zone Plate... 
    Red Leader Jannard's Avatar
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    Just as a reference, this is a Zone Plate shot with the Canon 5D II. Pretty easy to see what's going on with row-skipping. Getting motion from a slow clock-speed sensor is... well.

    Jim

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  2. #2  
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    Butt ugly.

    Is there a Red One version?
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  3. #3  
    Haha, now you have to train your focus puller to miss a little bit in order to prevent this ;)

    Bruce Allen
    www.boacinema.com
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    Senior Member Daniel Browning's Avatar
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    Here's the above image with a gaussian blur and ImageMagick Lanczos resample to DVD size:


    Inexpensive, large, quality: pick any two.

    Canon picked cheap and large, so quality went out the window.

    RED is planning large and quality (FF35) or cheap and quality (2/3").
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  #5  
    Ooo! That's ugly. You could have warned me Jim. I think I nearly threw up...

    Graeme
    www.red.com - 8k Digital Cinema Camera
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  6. #6  
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    Quote Originally Posted by Daniel Browning View Post
    Here's the above image with a gaussian blur and ImageMagick Lanczos resample to DVD size:


    Inexpensive, large, quality: pick any two.

    Canon picked cheap and large, so quality went out the window.

    RED is planning large and quality (FF35) or cheap and quality (2/3").
    Still butt ugly.

    Looks like my mom's third generation vhs copy of a TV show recording.
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  7. #7  
    Moderator Tom Lowe's Avatar
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    So are they skipping, like, every other pixel?

    Sensor resolution is stated at 5616 x 3744 (21.0 MP).
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  8. #8  
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    Interesting, but I'm still not sure about the line skipping. There can be other causes for this, although it may partially attributable to line skipping. Either way an artifact is an artifact.
    Mitch Gross
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  9. #9  
    REDuser Sponsor Martin Stevens's Avatar
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    Yes, the Canon is not the best.....but it is better than HDV. Yes????
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  10. #10 not symmetric 
    Let us be explicit on what is obvious to Jim.

    Surely you noticed that the Moiré Pattern is not symmetric (horizontal and vertical interference is not the same). This would suggest that

    (a) every third line in the 16/9 part of the sensor is read
    (b) the lines are read completely and resampled to 1920
    (c) luminance and color are interpolated on line level from the rgbgrgbg... pattern

    Yes?

    (d) These lines compose the image to be compressed, maybe after applying some filters.

    5D II users should definitely know this, since they must be scared of horizontal and nearly horizontal lines, less of vertical lines. Such an information should figure in the user manual, really.
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