Look at this one :
And here is a link to a good blog-page. It is in Icelandic, but has some very good pictures.
http://omarragnarsson.blog.is/blog/omarragnarsson/This aircraft has been residing on my field, and as can well be seen, we finally had ashfall.
It is a disgusting type of ash, acid, salty, and fine like cement powder. In the case of this aircraft, the pilot was lucky, - the ash fell while it was raining, and we just washed it off the plane.
He sticks around and does volcano round-flying for camera work as well as hopping around with volcanologists and such. I may be going today or tomorrow to have a close look.
If some of you have a good hosting ability, I can soon send some pictures that can be posted. Some of the images are awesome, especially if one has an understanding of the proportions.