Originally posted by Blue Ringed Dropbear
a circular bean-bag
Yes IBIS is great. I think it had improved a lot over time . I used to have a K20D with a Sigma 150-500, and the Lens stabilisation was better in-lens than the K20D IBIS. I had to turn SR off on the camera.
We could see the result "live" when the image cames very stable when viewed in the OVF. If using the IBIS SR, and no in-lens stablisation, The image in the OVF doesnt appera to stop shaking, You had to be a beleiver that it would work...
I have a bean-bag in an inverted "Y" shape, fulled with Sunflower seeds (in case I need some bait to attract birds...

).
Useful to put the big lens on the car's hood.
First time I hear bout those circular bean-bags.
Would be interested to see a photo of it (can't find much info about those on mr google search now)