Have a Question for Me?

[johnyandell]

Stotty, Lopez serves are back!

[johnyandell]

Right you are will look into it. You can see some serves though in the serve and volley section.

[stotty]

I can't get Feliciano Lopez's first serve clips to play in the Stroke Archive.

[johnyandell]

As I suspected, there is no part 2! If you want more serve info I suggest looking at the serve article in Ultimate Fundamentals or my series on the serve in Teaching Systems.

[johnyandell]

Great question! Been a decade or so. Not sure there is a part 2 and if so why it's not there in Famous Coaches. Having someone look into it. Part 1 is great...

[miyahana2019]

Looking for the Welby Van Horn article on learning and perfecting the serve, Part 2, if it is available? Thanks

[johnyandell]

Kerry! Thanks!

[kerrymitchell]

Nice article on the forward swing of the one hander.

[johnyandell]

Yep we are all waiting for the perfect, affordable solution...

[seano]

nytennisaddict -

Thanks for the info, i'll check out the website. I have a Casio FH100, as well. On a side note, the Sony RX100 is a pocket size camera.

Sean

[nytennisaddict]

The Sony RX100 Mark IV - VII cameras can record at 240 fps, 480 fps & 960 fps in the HFR mode , they are nice but can only shoot the highest qualities in 2 or 4 second burst. The cost is around $1200 for the Mark VII, cheaper for used Mark IV, V, VI. The following are the specs.

Mark IV - 240 fps = 1824 x 1026 - 2 second burst
480 fps = 1676 x 566 - 2 second burst
960 fps = 1136 x 384 - 2 second burst

Mark VII - 240 fps = 1824 x 1026 - 2 second burst
480 fps = 1824 x 616 - 2 second burst
960 fps = 1244 x 420 - 2 second burst

A nice feature is you can record before (start trigger) or after (end trigger) a particular stroke. I like "end trigger" cause you can choose which strokes you want to record after the stroke is completed.

John - what can you tell me about a "Red" camera? who makes it etc... Of course it's only possible in a dream world. I like to keep up with whats out there.

hmm... that sensor size is tiny https://www.dpreview.com/forums/post/54341984
i'm guessing the actual vid size is tiny or scaled up

i have the casio fh20.. shoots 1000fps, but the pic is tiny.

the thing that makes red cams so great is that their sensor sizes are big - ie. able to capture alot of light (and then the power/circuitry to process the incomeing data): https://www.red.com/dsmc2 (the biggest one is the same size sensor as a full frame cam)

[seano]

The Sony RX100 Mark IV - VII cameras can record at 240 fps, 480 fps & 960 fps in the HFR mode , they are nice but can only shoot the highest qualities in 2 or 4 second burst. The cost is around $1200 for the Mark VII, cheaper for used Mark IV, V, VI. The following are the specs.

Mark IV - 240 fps = 1824 x 1026 - 2 second burst
480 fps = 1676 x 566 - 2 second burst
960 fps = 1136 x 384 - 2 second burst

Mark VII - 240 fps = 1824 x 1026 - 2 second burst
480 fps = 1824 x 616 - 2 second burst
960 fps = 1244 x 420 - 2 second burst

A nice feature is you can record before (start trigger) or after (end trigger) a particular stroke. I like "end trigger" cause you can choose which strokes you want to record after the stroke is completed.

John - what can you tell me about a "Red" camera? who makes it etc... Of course it's only possible in a dream world. I like to keep up with whats out there.

[johnyandell]

Correct. I want a Red camera--only about $15K

[nytennisaddict]

Yep there are limitations to all these cameras.

and the reason why quality high speed cams (eg. capable of 1000fps at a decent picture size) are so damn expensive!

[johnyandell]

Yep there are limitations to all these cameras.