Zoom lenses, which contain several elements, tend to introduce more lens flare due to the many surfaces within the lens. See purple fringing and chromatic aberration. THIS DEFINITION IS FOR ...

They shouldn't wear contacts during a flare-up because the bacteria on the eye could linger on the contact lens, continuously irritating the eye until they put in new lenses. Instead, they should ...

Including a stepping motor for autofocus allows the lens to work with features like eye AF and subject detection ... are also known for horizontal lens flare, and Sirui says the upcoming 40mm ...