While at the Bungle Bungles, we visited Echidna Chasm - a stunning gorge formed by millions of years of water rushing down a crack in the join of the sandstone and conglomerate rock.
It's only 1-2 metres wide in some parts, but up to 200m high.
We were there in the late morning, waiting for the Sun to creep overhead and light up the narrow walls of gorge with a beautiful orange colour.
Photography was rather difficult because of the huge dynamic range. It was very dark in the bottom of the gorge, but very very bright overhead.
This was a 0.3s exposure @ ISO640. I can't remember what the focal ratio was set to (it's a manual setting on the lens and isn't captured in the EXIF).
The Samyang 14mm on the 5D Mk II was great for it's wide field of view trying to capture the height of the walls and also the floor, but the protruding lens
caused some nasty reflections from the very bright light overhead.
You can see the reflections/scattering of light in a semi-circle shape around the middle of the image. Looks like I need a flat-field
So it's not great for every occasion but still a very versatile lens
btw it's a self-portrait