@bc-surveyor Long and detailed, but worth it and the conclusion are pretty clearly put.

@pfirmst Peter, Thanks for the insightful reply. Sounds like interesting work. We get people wanting that kind of precision and accuracy, but not m...

I just read a paper where they explored this issue in depth and the concluded more or less the same thing. The best was a nadir/oblique combination, b...

Great stuff. I always love seeing innovative ways of matching up tools to accomplish the mission. Can I ask what it is you are doing that requires thi...

I agree with pretty much all of what has been said here. Even with a so-so computer, 100 or so photos won't take long for the initial processing. Depe...

@shelby-h-griggs-pls I don't know about turbo charged, but turbo prop planes are much more efficient at lower altitudes, whereas turbojet aircraft ar...

@chris-mills Thanks, I'll check it out. The current method used to inventory submerged, near-shore plant growth in fresh water lakes is to take a boa...

@chris-mills I'd like to hear about what you are doing wrt the shallow water multispectral. I have been researching methods of near shore algae and s...

For any particular drone, look up the Max Service Ceiling. For the Mavic, I think it it 5000m, so probably similar for other, though some have high al...

It's called density altitude. You can probably find some charts that you can use for this. You have to input the temperature and humidity. When I flew...

The P4P is a good choice. Use it as a tool in the right circumstances. In my experience, I would stay away from the online services. I feel like it's ...

Thanks Lee. How many end up being bare earth? I'm possibly going to rent one of these sensors if I by chance get a contract I am applying for, so it'...

What kind of points / sq meter are you getting?

Sorry I answered a different question than you asked. Part of an answer is that that it is not only size, but point density needed..

Size does matter, but mostly it's a matter of the type of site for economic purposes. For images, you can only map what you can see. And conversely, t...