I am having ghosting/flare problem when I use my canon 70 - 200mm 4L (non IS) but when i use my cheaper lens (Canon 18 - 135mm kit lens) there is no ghosting/flare. Dont know why, I am really confused, i never had this problem before with the same lens. please help.
Both image are taken from canon 70 - 200mm 4L. No i dont have UV filter on and i also tried putting the lens hood on, no difference.