I am doing such a research about aircrafts for aerial photogrammetry. Most companies in China used CESSNA 208B for this area.But I think its operating cost is too high .I am wondering if we can use CESSNA 206 and CESSNA 172 instead.

According to the suvey I have done,a lot of people in USA use CESSNA 206.
But I really don't know why.

Regardless of the price and the cost, is 208 usually operates better than 206 in aerial photogrammetry?

Do you guys have any idea?