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Shuttershock and Olympus 75-300

Since a couple of months I own the Olympus 75-300 III. And since day one, I wasn't happy with the results I got. 
All the pictures shot at +/- 300 mm where soft and looked like there was motion blur. How's that possible? I tried it at a 1/1000th of a second, but still the motion blur in my pictures. I regret that I ever sold my Pentax with the 55-300 for this awfull lens!
But... Most reviews of this lens are positive. Is my copy of this lens bad?
I then figured out by reading forums that it could be a phenomena called 'shuttershock'. It that case, the shock of the shutter causes enough movement so the image is blurred.
For example:

How to fix this?
My camera has several drive modes, including one called 'anti-shock'. And that does magic.
In that mode The pictures are sharp again. No motion blur is visible! 
The downside of this mode is that the fasted drivemode can't be used.

Great Wedding video

Today I saw a wedding video. I think you're a lucky couple if your wedding has been shot with this quality!!! The description is under the video:

Red Epic Wedding Trailer for Jen & Paul from Tonaci Visuals on Vimeo.
This could possibly be the first wedding in the world that was shot with the Red Epic. This entire trailer was shot on the Red Epic at 5K with the exception of one 2k 300fps high speed shot of the fountain.

For behind the scenes:

Producer: Don Le of Bliss Imagery
Associate Producer: JohnnyD Nguyen of Bliss Imagery
Cinematographers: Tonaci Tran & Thuy Huynh
Camera Assistant: David Tran
Lighting Assistant: John Ngo

Editor: Thuy Huynh
Soundtrack: Shayne Ward "Until You"

Special thanks to:
Jen and Paul for being such rockstars.
Don Le for setting this all up.
Justin O'Neill for Zeiss Super Speeds
Blair S. Paulsen for Red Rocket
Steve Tammi: Angenieux Lenses

quick note * in the rush of shooting, we didn't adjust the shutter to eliminate the light flicker. (this is not due to is due to operator error =)

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