read more
https://www.evernote.com/shard/s625/sh/f3d8f951-30a3-52db-8b99-2662135814ee/69dd25b4f3b361046683e7e6fdb106e6
Sensing unit as well as lenses: You will probably have to accept a smaller sensing unit dimension, and also no zoom lens. Much less glass implies less weight, which suggests a much longer trip time. Resonance: