Thought this product might some be of use to the terrestrial photographers out there.
I ordered one from the US as it was cheaper than buying locally!!!!!
http://www.blackrapid.com/
I got the RS4 and the T1 fastener( I have a monfroto tripod).
All up $87ish AUD!( USD $54 + USD $18 + USD $12 + conversion)
My nearest reseller/retailer is asking ~$80 + ~20 and then postage....
So I saved ~$15-20
Funny note ....My local Camerashop dude when asked if he had any in stock said ...." are you silly? having the camera upside down will make the mirror fall out, not to mention the SD card!"
I did fall for it for a few seconds......
B4 anybody says its not safe..... have a look at some of the reviews.
On top of that, just to be on the safe side I'll be looking at anchoring it via a small strap to the side!
Not that I'm afraid!
Bartman