Welcome to POTN!
In answer to your post subject title, yes, Canon recommends you turn off IS when using a tripod.
snowshine wrote in post #9294787
I find individuals in photos are not sharp even though I used a tripod and remotely clicking to avoid any camera shake. I have tried different apertures [Taken the photos in Av mode]
I wonder if I should make the IS [Image Stabilizer] redendant[Inactive] when using a tripod and remote clicking to obtain sharpness of the subjects. or the kit lens is hopelessly useless?
Thank you for your expert opinion.
Regards
I apologize, but don't understand your full question 100%. However, if your camera is tripod mounted and you're using a remote trigger and your subjects are blurred, it's most likely your problem is your subject is moving. IS on or off won't help that. What shutter speeds are being used? What kind of environment / light are you shooting in? Are you outdoors in bright light on a tripod and still getting blurred people? Post a pic with exif intact. Also post a 100% crop of a part of a blurred person.