Camera pros and cons

Hi I am in the market for a new camera for mainly planetary imaging. I am considering the new 290, the 224, and the 178.

Just looking for some pros and cons in regards to them....I would be using them mostly with an Astrotech 111 F/7 and an 8inch F/10 SCT.

Thanks

Carlos

for mono one go for the 290

color one go for the 224