#photogrammetry #scanning #flash #tutorial #materials #photography

In this video I present a ring flash based photogrammetry setup for outdoor materials scanning. The idea for this one came after someone asked what the hell is this thing, after seeing the ring flash setup.
I start with some theory, move into details and finish with 2 tricky examples.
Hope someone finds it useful.

If you like it and want to see even more content like this one, please subscribe to my channel, share it and leave the thumbs up.

Big thanks who did it already as it really helps me to move forward.

Stay safe and till the next one
Cheers!
Grzegorz Baran



Following your advice I split the video into sections so its easier to navigate on youtube
These are all key subjects covered:

00:00 Intro
2:44 Shadow Theory
7:10 ISO Explained
7:75 Outdoor Conditions
9:29 Flash Setup Details
13:58 Flash Power
14:43 Histogram Explained
16:10 General camera setting
16:44 Inverse Square Rule
17:24 Flash Angle
19:49 AR400 technical limits
22:40 Detailed Setting
24:34 Substance Response to cross polarisation
32:05 Complex Surfaces Rocks
37:10 Overwriting the sun Earth
40:36 Monopod approach
42:27 Outro