AncientEngine wrote:If I film at 1600x1200, every frame is 1,3 MB 
I capture using HeliumFrog. It lets you select various image types and qualities. I capture 1600x1200 images as JPGs at 95% quality, which comes out to about 500 KB per image, which isn't too bad. Some people say "stay away from JPG", but at 95% quality, I dare say I've never been able to see any artifacts or had any trouble. And even if i could detect a little, when the images are flying by at 15 FPS, a tiny bit of graininess will not be noticable above the noise you typically get even with HD video cameras.
I then use MonkeyJam to connect the images together at whatever FPS I like, holding some frames more than others if I need to slow something down, and cutting out frames if I need to speed something up. (MonkeyJam is great for that, also for linking it to a WAV file.) Then I export HUGE uncompressed 1600x1200 AVIs from MonkeyJam. Then I use VirtualDub to crop and resize the UnC AVI to whatever size and resolution I want, and then export UnCompressed AVI from Vdub. Then I use MPEGStreamclip to convert these UnC AVIs to 95% quality Apple Motion JPG compressed AVIs. These are about 10% the size of the UnC AVIs. The nice thing about motion JPGs, besides the much smaller size) is that they are still quick to edit in a video editor (just like UnC AVIs are). My last step is I go back and delete all those huge intermediary UnC AVIs.
Using HeliumFrog turned me on the to power and simplicity of Motion JPG AVIs. It automatically captures MotionJPG AVIs as you capture your images while filming. I don't use those AVIs for anything, so I set them to very low quality, 25%, but that's still sufficient from meaningful onionskinning.
