We’d advise it, simply because bags that have good linings in them will help protect your electronics, meaning you’ll have the padding to keep them in great shape while inside the bag. You want to make sure that the interior of the bag isn't rough or scratchy, and also that there is no way for you naked lens to be scratched on the fabric or zipper. It may sound silly, but if you are unsure, you can keep each camera piece in a bag within you camera bag to keep them even safer.