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08-10-2015, 09:05 AM   #1
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K3 timelapse question

Hi everyone :-)

I have a question about the timelapse function of the K3. I've tried some, but I never had a satisfactory result: it looks like the framerate is too low. I checked the codec, and the framerate is at 24 fps, so it's (should be) good.

Here is a link to a video:

https://www.flickr.com/gp/55134713@N04/0QZ69P

[EDIT:]
The reason why my timeless are "jagged" (I don't know a better word) is that three consecutive images are the same in the output movies. So if we decompose the movie, it gives something like this:

image1
image1
image1
image2
image2
image2
...

Therefore, the video's look good when I play the back at two or three times the original speed (VLC).

Any ideas?

[EDIT2:] Here is a illustration/solution:



Last edited by Azergoth; 10-16-2015 at 12:57 PM. Reason: Video accessibility
08-10-2015, 10:15 AM   #2
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Link states 'private'
08-10-2015, 11:19 AM   #3
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QuoteOriginally posted by JohnX Quote
Link states 'private'
Now? sorry...
08-10-2015, 11:38 AM   #4
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Works for me - and looks fairly good. I don't shoot timelapse, but I'd guess maybe it's the interval between your shots that might be just a little high? If you want the cloud movement to look fairly continuous, the interval between your shots needs to be short enough that they won't move too much between each shot, no? Just a thought...

08-10-2015, 11:42 AM   #5
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I found I had to speed up the videos after the fact, I could see if I found the script to do it if you'd like!

Edit: here's a sped up video I created if you're interested.
08-10-2015, 04:10 PM   #6
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seems ok for a time lapse maybe slightly jagged......either speed up the video or shorten durations between shots.........for sunsets I usually have 15 second intervals and at night 2 seconds past my exposure time....have many posted on youtube and flickr
08-11-2015, 07:09 AM   #7
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Thanks for your replies. :-)

Indeed, the interval between the shots is maybe a little long, but it should result in a "faster" timelapse, not a jagged one? It looks like it is a 5 fps video up sampled to 24 :/
08-11-2015, 08:39 AM   #8
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I found that when you put the video together, making each frame dissolve into the next will smooth it somewhat as well.

08-11-2015, 02:57 PM   #9
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QuoteOriginally posted by Azergoth Quote
faster" timelapse, not a jagged one
maybe jagged is wrong term but one I use for myself........typical daytime for me is 120 exposures at 15 sec intervals for a 1/2 hour........reduced to about a 10-12 sec video which works great for me for doin sunset time lapses......would hafta fool around with timing if I ran the camera for 5-6 hours during the day for cloud movement
08-16-2015, 12:17 PM   #10
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setting your shutter speed to half the interval will give smoother motion.
08-17-2015, 07:08 AM   #11
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QuoteOriginally posted by maltfalc Quote
setting your shutter speed to half the interval will give smoother motion.
thanks for the tip ;-)
08-17-2015, 07:46 AM   #12
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QuoteOriginally posted by maltfalc Quote
setting your shutter speed to half the interval will give smoother motion.
I'll have to try this, I keep forgetting to when I do time lapse videos.
09-14-2015, 02:22 AM   #13
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Sorry to "reopen" this post, but i've discovered something really odd...

The reason why my timeless are "jagged" (I don't know a better word) is that three consecutive images are the same in the output movies. So if we decompose the movie, it gives something like this:

image1
image1
image1
image2
image2
image2
...

Therefore, the video's look good when I play the back at two or three times the original speed (VLC).

Any ideas?
09-15-2015, 09:06 AM   #14
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sounds like you might have aa bracketing turned on.
09-15-2015, 11:42 AM   #15
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QuoteOriginally posted by maltfalc Quote
sounds like you might have aa bracketing turned on.
I don't think so. I don't think there is a bracketing mode in Interval Shooting Mode (timelapse) and the three images are absolutely identique (copies of each other). Furthermore, the camera does only take a single frame at each time...
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