Hi Steve,
We're almost neighbours - I live in Hahndorf!
I assume you'll be using lenses to do your timelapse stuff?
Have a read at my experience with the clip in type of filter on my Canon 40D and 70-200mm f4L combo...
http://www.iceinspace.com.au/forum/s...CH+FILTER+WOES
I got severe internal reflections and had to revert to the screw in lens filter instead which I'm very happy with.
All the best
Doug