Also curious to learn more about how field of view>focal length plus sensor size> effects motion blur, does it mean the bigger the physical size of the sensor the bigger the risk of motion blur regardless of the number of pixels or... maybe I am the only dumb kook who doesn't understand this and someone can link me to a page that even I can understand?
I hope my summary is correct;
If you hands make the camera shake up and down by 1mm, this will have more of an effect if you use an 800mm lens than if you use a 35mm lens. this is because the narrower field "magnifies" any wobbles...
think about when you look at a an out of focus photograph as a small thumbnail image: it appears acceptably sharp... however as you zoom in, it becomes less sharp... this is because you are making any imperfections bigger.
if you try handholding a long lens like a 200mm on your camera, you see the wobble more than if you use a 24mm lens on the same camera.
your hands still shake by the same amount, but the longer lens makes it more obvious.
it is all about angles and things, so it kind of gets complex, but you can think of it as an un-even see-saw in a playground.
if you hold one end steady, the other end will wobble with your pulse... but if the other end is longer than the end you are holding, it will appear to wobble even more
I hope these ramblings help a little!