Image Stabalization

[Judithgap]

I recently purchased a Canon 18x200 with image stabalization but am having difficulty determining if the function is working. I say this because I also have a Canon 100x400 with image stabalization which when used you can actually hear and see the lens lock in.
I do not hear or see this with the new 18x200. Has anyone here purchased this lens lately and have any feedback?
Thank you

[Colin Southern]

Hi Judith,

I've used one, but not recently. Assuming it's switched on, you should be able to look through the viewfinder - press the shutter button 1/2 down - and then detect a slight lag between moving the camera up and down slightly and having the image in the viewfinder move up and down. Try it at 200mm - it's quite subtle, but you should be able to see it.

[Splatsworth]

What Colin says will work, the noise you are hearing on your 100x400 is more than likely the autofocus rather than the IS

[Judithgap]

Thank you.
I will give it a try.
Really glad I found this web site.