Wow, picture 1 is a happy boy with his new toy!!
What a monster!
There are some other filters around, I think Baader doone that seems ok, but I have never come across a review.
This isn't the one I was thinking of, but there is one review for it, which I've not included.
http://www.optcorp.com/product.aspx?...-1155-859-8917