I purchased the
M3 after the December update. Flys great with no issues and super quiet. I was very disappointed with the zoom and the 7x was ok. I did use the explore mode to perform a search and rescue of a neighbors dock but photos were for crap.
After the January firmware update, I am very pleased with the zoom on this. I believe the 14x is very usable and even the 28x is significantly better. The current state of the zoom will allow me to use for inspections and produce good photos. I suspect the next firmware update will make it even better.
Here is a quick test of the zoom looking at a metal roof from 275 feet and from 75 feet. This will now enable me to fly a little safer away from what I am inspecting and still get good close ups.
At the 75 feet test, the 14x and even the 28x shows a pretty good image of the roof fasteners. I look forward to putting it through some paces for towers.