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Customer Discussions > high definition discussion forum

jerky blu ray picture

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Showing 1-6 of 6 posts in this discussion
Initial post: 30 Mar 2012 22:36:09 BDT
i have changed my samsung blu ray player and bought a sony blu ray surround system.
the samsung used to play perfect on my full hd tv but now i have the sony connected and when i play blu ray on the sony when there is a pan scene,left/right or up/down the picture is very jerky.
this is really annoying,does anybody have any idea how to solve this please??

Posted on 31 Mar 2012 07:56:29 BDT
truthsetter says:
[Customers don't think this post adds to the discussion. Show post anyway. Show all unhelpful posts.]

In reply to an earlier post on 1 Apr 2012 07:55:23 BDT
Paul Smith says:
obviously they cant figure it out, and you are being uneceesarily rude and offensive to mrs jones with no good cause..... what is YOUR problem

Posted on 1 Apr 2012 08:25:36 BDT
Ryan says:
The jerky movement is because the camera shoots at 1/60 second or faster. Well blu-ray specifies 24 frames per second, so in order to achieve "smooth" panning movement the camera shutter speed should be 1/24 second for each frame. Unfortunately, in a very bright situation such as outdoor scene with natural sunlight, 1/24 would result in overexposed picture because it is just too bright. Therefore the camera adjusts its shutter speed to faster than 1/24, the most common is 1/60. There is a gap of 1/40 sec (1/24-1/60) where the scene is not shot for each frame, resulting in jerky movement.

Another way to shoot at 1/24 without making it overexposed is to use ND filter, now tell the director and his cameramen to do so.

Hope this helps:

Posted on 1 Apr 2012 08:35:19 BDT
Last edited by the author on 1 Apr 2012 08:46:16 BDT
Hi Mrs jones,i had the same problem with my lg surround sound player&lg tv &got round it by changing the 1080p display mode/24Hz to 50Hz,it doesn't do it now &if it does i don't notice it has much.Hope this helps.

Posted on 6 Apr 2012 13:55:41 BDT
Last edited by the author on 6 Apr 2012 13:56:34 BDT
I also experienced the same problem playing 1080p discs on my LG Blu ray player and TV. As well as the advice D.I Whiteley has suggested, if your TV has a 24 fps or "True Cinema" option on the menu, as my TV has, activate this as this should eliminate the problem.
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Participants:  6
Total posts:  6
Initial post:  30 Mar 2012
Latest post:  6 Apr 2012

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