Thursday, May 3, 2007

Time lapse photography

Jul Lauzon (http://shredbuddiesproductions.blogspot.com) sent me this link.
http://599productions.com/599/Timelapse%20480p.html
This really got me hooked to time lapse photography. I'm currently debating wheter I should buy an electronic shutter release / intervalometer. This device act as an automated shutter release. Coupled with the intervalometer, it can release the shutter at every given time.
How is it possible to make video with a DSLR?
It is very simple, a Cam Corder is able to record 24 or 30 frames per second (FPS) a DSLR is able to record from 2.5 fps to 8 fps at its fastest burst settings. Time lapse photography consist in stiching all those photos taken in burst in a video format.
Why is it that time lapse photography is like fast fowarding?
Well it's pretty basic. If you record 1800 frames at 3 fps you did record 600 seconds of "real" time. Now, you want to merge those 1800 frames together to get a video. The legit fps rate in video is 30 fps. Therefor those 1800frames at 30 fps will result in a 60 seconds video (1800/30).
How do I transform the pictures into a video motion?
You need quicktime pro and you simply have to "import a new photo sequence". That's it.

Time lapse using DSLR will result in a high resolution video, far beyond that what our conventionnal HDTV capabilities. Hence, I recommand using the smallest resolution on your DSLR. On most camera it'll result in a video with just a tad more resolution than 1080p.

Time lapse photography is probably the most damaging use of a DSLR. The shutter on the prosumer DSLR (D40, D40x, D70, D80, 300/350/400d and their Pentax, Olympus, Sony counterpart) has an estimated life of 50 000 frames. Make the calculations, that is about 27,78 minutes of video (50 000/1800), but also 166,67 hours of shooting at 3fps.

I don't think it's a good idea to use semi-pro and pro bodies to do time lapse photo. I'd even call it stupid, you don't need all the extra goodies and extra resolution these bodies offers. Just grab a used prosumer that got upgraded because its previous owner wanted the extra features on the latest body available. It is quite unusual to see prosumer bodies used to up to 50 000 frames. D70, D50, 350d and 300d can be bought for about 400-500$ used.

10 comments:

Julien said...

lol, js on point with time laps. crazy shit's comming

ndompierre said...

Buy a Bolex, set it to 5 fps and let it run, it will cost 600$ for the camera, and you'll get the craziest quality ever seen for your timelaps, without the the complications of shooting with slr :P

ndompierre said...

sorry for the flood, by the way the quality and the scenes from that vid are totally amazing
le québec est une nation francophone aussi!
peace :)

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