View single post by Robert
 Posted: Mon Apr 22nd, 2019 14:55
Robert



Joined: Mon Apr 2nd, 2012
Location: South Lakeland, UK
Posts: 4066
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Sorry Chris, this slipped under my radar.

I have had another session today, spent the morning on Askam Pier, nothing glamorous, just many thousands of tons of slag from the old steelworks, which was demolished in the 1930's flourished in the late 1800's.  The pier forms a barrier nearly a mile long out into the estuary, like a giant breakwater.  The tide has to go round it and the currents are really fierce, at the far end it is about 2 Metres above normal high tides.





I wanted to video a full tide coming in, close up, from the initial bore to slack water at high tide.  This morning a recorded it for a bit over three hours with the D800 and the D3 taking JPEG time lapse at 5 second intervals.  Unfortunately the conditions seemed to have prevented the severe whirlpools forming today, but todays video shows even bigger ones off the end of the pier.

The D800 was wonderful, I set the interval and duration and at the end it finished and the resulting file is an MPEG4 I think, no sound of course  Not sure of the resolution.

The D3 doesn't 'do' video so I set it to work taking JPEGs, 1700 of them!  I have just finished outputting the MPEG4 file a few minuets ago, it has taken me most of the afternoon, I don't do it very often, so had to refresh my  memory on how to do it in Photoshop.  I output it at 1920p resolution I think at 24.xxx frames per second.

The previous video from the D800 was the basis for the you tube video I uploaded.  I will have to check out what the settings were but when I played it before uploading it it was perfect.  I am sure the compression and whatever Google do with it for publication, played havoc with the quality.

Once I have recovered I will upload todays video, I will try to break it down a bit, it totals over 2.5 minutes for three hours of recording on two cameras.



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Robert.