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Time-lapse horses

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Offline fbonomi

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Time-lapse horses
« on: 10 / April / 2008, 12:08:20 »
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I am doing my very first experiments in time-lapse, and it's funny how certain things change the way they look when seen at high-speed.

In this case these horses, quitely grazing in their field, become some sort of "biological hoovers".

You appreciate how systematic you have to be in order to feed on grass.

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Offline a710is

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Re: Time-lapse horses
« Reply #1 on: 10 / April / 2008, 13:12:14 »
hey easy on the caffeine there, give them more tap water and less coffee, they get too agitated.  :haha :lol
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Offline yvesson

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Re: Time-lapse horses
« Reply #2 on: 10 / April / 2008, 13:51:06 »
Hej,
Yeah I think it would be better with a bit more pics and a bit slower... but maybe it would be a bit boring too if slower.
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Offline fbonomi

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Re: Time-lapse horses
« Reply #3 on: 10 / April / 2008, 14:29:23 »
As I said, I was just experimenting: I had an annoying problem, where my a570 was getting a few black shots if the delay was too short (under 15-20 seconds)

At first I blamed the slow card, but it seems that re-formatting the card in the camera (not in the PC!) solved the problem.

This movie was taken at 10s per frame, it now seems I can go without problems at 4s-2s per frame, even with that slow card. Even though, frames are very small (shots taken at S size) and therefore MB/sec are probably irrelevant in this case.
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Offline PhyrePhoX

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Re: Time-lapse horses
« Reply #4 on: 10 / April / 2008, 14:47:50 »
haha, great idea for a timelapse. well done :)
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Offline Barney Fife

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Re: Time-lapse horses
« Reply #5 on: 10 / April / 2008, 16:59:14 »
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« Last Edit: 22 / April / 2008, 17:20:19 by Barney Fife »
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Offline jonnythe

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Re: Time-lapse horses
« Reply #6 on: 10 / April / 2008, 22:37:23 »
That is so cool! They look like strange ants or something. Needs some Benny Hill music though.

Quote from: Barney Fife on 10 / April / 2008, 16:59:14
I try to circumvent having to do that by using Windows defrag program on my SD cards, it seems to work almost as well.
Only problem with that is SD cards "fragment" themselves. They use wear-levelling to spread out the wear over the card to make them last longer. The way I've always done it for my PDA is move everything off the card, then copy it back.
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Offline msl

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Re: Time-lapse horses
« Reply #7 on: 11 / April / 2008, 04:27:23 »
A very nice clip.  :)
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Offline PhyrePhoX

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Re: Time-lapse horses
« Reply #8 on: 11 / April / 2008, 05:06:48 »
Quote from: Barney Fife on 10 / April / 2008, 16:59:14
This I've got to see. :)

And yes, when doing any kind of higher speed frames of any type, a fresh format helps immensely. I try to circumvent having to do that by using Windows defrag program on my SD cards, it seems to work almost as well. Running that on a card after I've removed all photos. (Most all other defrag utilities don't seem to recognize cards in a card reader, for some reason. Otherwise I'd use Vopt, my all time favorite.)


are you sure defragmenting the card really helps? the way i see it, defragmenting only helps in systems you have "mechanical heads, sliders" and the like in. harddisks for example. formatting on the other hand could really help, as it deletes all data, so the card itself doesnt have to lookup in it's table where there is free space to write on. defragmenting your cards will definitly shorten their time of life, like jonnythe said. but if it works for you, why not. maybe i will make a benchmark one day, one with heavily fragmented card, one with non-fragmented card (with a lot of pics of course).
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Offline jonnythe

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Re: Time-lapse horses
« Reply #9 on: 11 / April / 2008, 05:22:39 »
PhyrePhoX, this is sort of off-topic, but that's the way I understood it too. But today I did a test with the 32meg card that come with the camera. I went through a process to fragment it, and write speed definitely dropped. I think this may become more of an issue when the card is older and certain blocks have been written to more. But checking with windows defrag, removing everything then copying it back does seem to lay it out in contiguous blocks for now. BTW, wear-levelling is actually built into the onboard sd controller, it's part of the specification, IIRC.
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