Thank you for you kind comments.
My 10 stop ND was a welding glass (the ones used in welding masks to prevent eye damage )
This is one trick "filter" to use as was placed with elastic rubbers between the .6 GND and the lens , plus it outputs a completly green cast picture! Best 3€ ever spent in photography
You guys in Portugal have some pretty amazing welders glass! No way US welding glass yields that much light and detail! And the way you caught all that movement in the sky with absolutely no corresponding shadows on the stairs is amazing! Might be the best photographic feat I've ever seen!
