IS & VR

Can anybody point me in the direction of a simple guide to lenses containing either of these systems.
I need to know the uses of the different modes and whether they should be turned off when using a tripod.

Thanks

is/vr should be turned off when using a tripod and turned on when using a monopod.

It depends a bit on which generation VR/IS the lens has. In general if locked down on a tripod turn it off. If handheld, monopod or gimbal leave it on.

Hi Ken,
You may find some info here also:
http://www.birdphotographers.net/for...ad.php?t=40619

Thanks for al of your input, it seems that there are differing views, as with almost everything.

Check the instructions that come with the lens our the manufactures web site, some lens the IS OR VR should be turned off and other lens it can be left on. For example my 28-135 IS and 300 f/4 IS Canon recommends that IS be turned off when using a tripod while my 500 f/4 IS and 70-200 /4 IS can be left on while using a tripod.