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Old 30-08-2017, 04:19 PM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,976
Hi Gordon,

Just out of curiosity I played with the frame rate to see what was noticeable. I known we normally strive for the typical motion picture standard of a minimum of around 24 fps based on human perception of smooth motion, determined way back "in the day" along with acceptable panning rates, but with slower moving subjects this can be stretched a little (Quite a bit).

Try your 25fps vision and using Youtube's speed adjustment set the speed to 75% (~18fps), then 50% (~12fps) and finally their slowest setting 25% (~6fps). Because I believe there is so little time between your frames (only 4s) and the rate of movement across the frame is not fast, you can get away with quite a lot of speed reduction (if you want to for a longer sequence or to use fewer images and thereby reduce the total session imaging time), without it looking too obvious: 18fps is OK, 12fps is on the border of acceptability/unacceptability, 6 fps is jerky/unacceptable. Interesting I think, but also dependent on image size, which I only considered on a 24inch screen at about 700mm.

Anyway all the best - Great Timelapse/s

Best
JA

Last edited by JA; 30-08-2017 at 04:37 PM.
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