New Filter

I bought a remote release and some welders glass. Put the glass over the front of the lens, point camera at sky and land, press release button and hold for 60 seconds.
A bit of post processing to remove some of the green colour cast and hey presto. A photo with purple where there should be black/brown and flare spots too.
The effect of the long exposure is the clouds smudged across the sky.
I like this effect but will need to practice on various things to get it right.