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Penhold technique Xu Xin 240/120fps slow motion) |
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and-
Member Joined: 10/13/2008 Status: Offline Points: 32 |
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Posted: 12/18/2016 at 2:47pm |
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Hi guys.
I shot several short videos at Swedish Open 2015. What makes all of them slightly special is the fact that they were shot at 120fps or even 240fps in Full HD. This makes it easy to analyze various techniques. This time I put together a short video with various technical elements performed by Xu Xin. You can see serves, FH and BH loops, FH flip, short return with a cool "fake overspin" movement, and, most importantly, his incredible footwork. The music in the video was originally composed for a table tennis tournament in China. I hope you'll find the video useful or, at least, you will like it. Edited by and- - 12/18/2016 at 9:20pm |
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suds79
Silver Member Joined: 08/20/2012 Location: USA Status: Offline Points: 878 |
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pretty awesome. nice work.
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dmoney
Member Joined: 05/01/2016 Location: United States Status: Offline Points: 52 |
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Thank you! At times the penholders get forgotten about sometimes. It's no wonder he has so much power, he starts his forward swing from so far back. I'll be watching this very closely.
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Thanks!
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and-
Member Joined: 10/13/2008 Status: Offline Points: 32 |
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suds79, fatt, dmoney
Thank you guys! dmoney I agree, the back swing is huge. Also, he manages to perform a large amplitude forehand loop even when attacking an incoming topspin - even standing close to the table! |
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qpskfec
Silver Member Joined: 07/28/2011 Status: Offline Points: 517 |
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Very nice video.
It also shows how XX can serve legal and borderline legal/illegal on demand. Serve at 2:11, high toss, looks pretty legal. Serve at 2:39, ball tossed to the side and backwards, XX has his body turned much more and the contact point is much further back from his head. Head/body hiding contact or very close. I did a screen grab of both and put them side by side, the difference is very obvious. |
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mickd
Forum Moderator Joined: 04/27/2014 Location: Japan Status: Offline Points: 1231 |
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Very good video. Thanks so much for putting it together for us.
By the way, what did you use to record it?
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el luchador
Super Member Joined: 01/26/2016 Location: south Status: Offline Points: 188 |
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Amazing video. Thanks a bunch. Im going to watch this one several times.
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Do or do not, there is no try- Yoda
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and-
Member Joined: 10/13/2008 Status: Offline Points: 32 |
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qpskfec, mickd, el luchador
Thank you guys. Really, very nice to see that my work is appreciated. qpskfec I think that most players break the serve rules. For example, the rules say that once the ball has been projected upwards, no part of the body or clothing should cover it from the receiver. However, if the server is leaning forward during a forehand serve, the ball would go behind his/her head. It does not always cause difficulties in receiving but, formally, the rule is broken. Another example: one of the rules says that as soon as the ball has been projected upwards, the free arm should be removed from the space between the ball and the net. First of all, the moment, when the ball has been projected upwards, is not defined in the rules. Is it the highest point of the toss? Secondly, the space between the ball and the net is defined for the net infinitely extended up and down. Essentially it means, that the space is defined by two vertical walls going through the net posts and crossing at the ball. There are really many players who do not move the free arm out of this space soon enough or at all. Again, if the free arm does not cover the ball, it's not a problem for the receiver but, formally, the rule is broken. I think that these rules are really badly written for the purpose, and impossible to control from the umpires' seats. mickd I used Sony RX100 IV. When shooting at 240fps, it has 2sec limit. IT's good enough for capturing the technique of an element, unless it's a high toss serve LOL. |
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TTslurp
Super Member Joined: 01/19/2011 Status: Offline Points: 113 |
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I can hardly see any substantial forehand wrist motion - which should be one of the main advantages with penhold. I wonder if his playing style (huge backswing and large playing space behind the table) would have been the same if he had chosen skakehand? And in that case, would he have been even better?
Edited by TTslurp - 12/21/2016 at 3:41pm |
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sandiway
Gold Member Joined: 04/15/2010 Status: Offline Points: 1554 |
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It is a great and smooth slow-mo video; thank you for sharing. What kind of camera do you use that can shoot 240fps full HD?
I wish you can let the ball linger a bit longer on the serves so we can see exactly how much spin there is after it contacts Karlsson's paddle.
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and-
Member Joined: 10/13/2008 Status: Offline Points: 32 |
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and-
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Edited by and- - 12/27/2016 at 1:35pm |
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benfb
Platinum Member Joined: 10/10/2008 Location: United States Status: Offline Points: 2709 |
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That was an amazing video. Will you be posting any other videos? I'm think FZD and Ovtcharov would both be great to watch. Or did you just focus on XX?
You'll have to visit more pro tournaments in the future. Official MYTT video correspondent.
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and-
Member Joined: 10/13/2008 Status: Offline Points: 32 |
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benfb
Thank you very much for your kind words. :) I do have quite a few similar videos with Fan Zhendong. I'm planning to compose a new music piece and make a similar video - hopefully similarly amazing video. I'd love to travel to more tournaments, but, being an unofficial correspondent, I may not get a good angle for shooting video. Swedish Open is very good in this respect: players are close to the audience, and there are many available seats. Edited by and- - 12/28/2016 at 1:45pm |
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sandiway
Gold Member Joined: 04/15/2010 Status: Offline Points: 1554 |
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Thanks, I looked that camera up on dpreview. It is small, but has a 1" sensor with quite amazing specs. I'm surprised it doesn't overheat when recording video. It's the first I've heard mentioned with 1080p at 240fps. But actually, 1080p it can do 120fps - until 29 mins 59 secs ?, which is great. But at 240fps (and beyond), it is limited to 2 or 4 secs max at a lower than full HD resolution, but the camera scales it up to 1080p. Still, it's amazing. EDIT: I've noticed Sony releases a new RX100 version every year, so it's up to RX100V now, which I haven't read about yet...
Edited by sandiway - 12/29/2016 at 9:44pm |
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and-
Member Joined: 10/13/2008 Status: Offline Points: 32 |
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sandiway
Unfortunately, it does overheat when recording Full HD video at 120fps: you can shoot for ~5-7min. At 60fps it's manageable but still may overheat. Lifting the screen on the back of the camera helps somewhat. At 120fps it seems to read out the entire sensor, because sharpness-wise the image looks amazing. At 240fps it skips lines, so there are some image artifacts related to that. Also, it doesn't quite manage to read all 1080 lines - it's something like 1020, I think, resized to the standard 1920x1080 full hd frame. Still, close enough to Full HD with really useful framerate for table tennis. At higher framerates (480fps and 960fps) even more lines are being skipped. Although, the video is still upscaled internally to the standard full hd frame, such a video no longer has the "nearly full hd" quality and clarity. Still very fun to use though. :) In the next generation of the camera (Sony RX100 V) the maximum recording time is increased from 2 seconds to 4 seconds. Very helpful! |
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and-
Member Joined: 10/13/2008 Status: Offline Points: 32 |
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Thinking about it... Maybe, so short movement before touching the ball and fast large movements after the contact is the way to disguise a no spin serve. |
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Johnny2WL
Member Joined: 12/08/2016 Location: Hong Kong/USA Status: Offline Points: 70 |
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Very nice. FZD serves at the end, bonus!
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and-
Member Joined: 10/13/2008 Status: Offline Points: 32 |
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Thanks. I think I'll make a similar video with Fan Zhendong too. I have the footage in both 120fps and 240fps.
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