I've several lenses that have large hoods which make it near impossible to leave the hood on and reach in to remove the center pinch lens caps. I realize most people just keep lenses in their camera bag with the hoods mounted in reverse on the lens and simply remove the lens cap and mount the hood right way around. I'm a little odd in that I like to change lenses in the field rather fast and a couple of lenses hoods will allow you to simply place a larger lens cap on the front of the lenses hood to assist in a speedy lens change. Example: the Olympus 17mm lens hood takes a 62mm lens cap and the Olympus 75mm lens hood takes a 67mm lens cap. All of the other lenses I have hoods that are so shallow that it's easy to reach inside the hood to remove the lens cap. There is one exception, my 40-150mm (Non R) Olympus zoom. It takes the Olympus LH-61D lens hood and I can't find a lens cap that will fit this hood. I'm hoping any of you out there may have this hood and could offer any advice as to the lens caps size that would fit this hood. I'm too cheap to buy a bunch of lens caps to try out so any opinions out there will be greatly appreciated.