Some Video/Pictures Look Great and Others look kind of Blurry?

[Infiniti7]

how come sometimes when you shoot videos some look so clear and other times you can see a little blurry in them?

 

[Infiniti7]

anybody know why?

 

[ernbrdn]

Are you using HDR? In my experience HDR pictures have a greater chance of being blurry than a normal picture for the simple fact that it's merging two frames at different exposures into on frame or shot. That's the way I understand it anyways I could be wrong. So if there is any movement whatsoever from the subject or your hand in the split second it takes to generate both frames you will end up with blur. Of course there is also motion blur as well that seems to happen more in low light situations but I know even less about that