Shooting video with my Canon 5DmkII and a Canon 28-135 3.5-5.6 IS (non-L) lens: 5D is in manual mode and manual focus (IS is off) on lens. In live view, Is it normal for this lens to shift brightness when one zooms in and out? In live view, as I zoom in the image gets brighter in a stepwise fashion (sounds like the aperture is adjusting internally, zoom out it gets dimmer. I don't hear or see this when not in live view mode. ...trying to figure out what is going on. This does not happen with my 17-40 L lens. Thanks, James pov@xxxxxxxxxxxxx All replies default to the entire POV list. To reply to the specific sender, make sure the sender's email address is the only one in the To: field of your email application. To subscribe or unsubscribe: //www.freelists.org/list/pov