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View Full Version : Sony Fs100 and Panasonic GH2 Rolling Shutter Test.



Quad][Light/JeremyHowell
06-13-2011, 10:06 PM
A little background on test. Both shot on same lens 50mm @ F8 with ND and Sony FS100 @ 0db shutter 1/48 and Panasonic GH2 @ 800iso shutter 1/50


http://vimeo.com/25063232

eheath
06-14-2011, 12:07 AM
damn, it looks significantly better on the fs100

Rick Burnett
06-14-2011, 12:50 AM
I will try this weekend to do the test with my FS100 where I can give you numbers. It feels a little faster than even the AF100 which is MUCH faster than the GH2 (except the tele extender mode which is REALLY fast on the GH2). You can really see the difference in the vertical compression.

Quad][Light/JeremyHowell
06-15-2011, 12:31 AM
I will try this weekend to do the test with my FS100 where I can give you numbers. It feels a little faster than even the AF100 which is MUCH faster than the GH2 (except the tele extender mode which is REALLY fast on the GH2). You can really see the difference in the vertical compression.

Sounds nice let me know your results!

Rick Burnett
06-19-2011, 04:16 PM
I have performed the test on the FS100, you can see the results here:

http://www.dvxuser.com/V6/showthread.php?253165-FS100-Rolling-Shutter-performance...&p=2367178#post2367178

Quad][Light/JeremyHowell
06-19-2011, 06:48 PM
I have performed the test on the FS100, you can see the results here:

http://www.dvxuser.com/V6/showthread.php?253165-FS100-Rolling-Shutter-performance...&p=2367178#post2367178

Nice! Surprised by the AF100, Posting any video of the two i would like to see.

Rick Burnett
06-19-2011, 07:08 PM
No video for this test as it is BORING. You basically make sure you have a vertical line in the frame that is EXACTLY vertical. You check with both sides. Then you just pan back and forth till you feel you have a good pan and you take two successive images and compare them. You know the frame rate (1/24), so for any two frames, you can take the EXACT same line and count the pixels that something moved between frames. That allows you to calculate how much time each pixel represents between the frames. Then, you take either frame and measure the pixel difference between the top and bottom of the entire frame, which is the skew. Given you know how much time each pixel represents, that allows you to tell how long it took to read from the top to the bottom. Very simple. Given there will be some small margin of error, that is why I say the AF100 and FS100 are practically the same.