Compiling video from clear PNGs results in blurred video

[acme123]

Hey guys! I'm trying to compile a video from a series of several still images. The command I'm using:

convert -dispose previous *.png out.mpeg

The original images are clear and lossless, and basically just have a single dot for each point. Unfortunately, the movie comes out blurred...

http://youtu.be/YZgDUIE0xUM

Does anyone have any idea what the issue could be? I'm thinking it could be related to the fact that the original images are 435x300, but the output video is smaller than that, and I suspect there's some scaling issues going on - but I don't know how to make the output video the same resolution as the original (the docs don't seem to suggest how you can set output video resolution).

Anyone have any suggestions?

[snibgo]

YouTube mangles videos, so it's hard to know where the problem lies.

I always create video directly with ffmpeg, rather that indirectly through convert. With ffmpeg, you can ensure there is no resizing, and can decide the quality/bandwidth tradeoff.