I recently bought the Canon f11 800mm and I couldn't find a lens Hood for it, so after seeing your video on diy lens Hood I took myself to Bunnings and found a pvc down pipe fitting and it fitted perfectly on my 800mm lens thanks again Derek
I use the Freewell magnetic filters for the same reasons. Good idea on the lens hood. I hadnt thought about doing that. I must say, I wouldn't mind visiting your area of Australia either. The Antechinus seem interesting too.