The geometry of the lens hood can vary from a plain cylindrical or conical section to a more complex shape, sometimes called a petal, tulip, or flower hood. This stray light often comes from very bright light sources, such as the sun, bright studio lights, or a bright white background. Flare occurs when stray light strikes the front element of a lens and then bounces around within the lens. Rollei Fototechnic SL 2000 F system booklet (December 1983).Ī lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare.Rolleiflex SL 2000 F 35mm SLR camera system booklet (August 1982).
Rolleiflex SL 2000 F - Practical hints handbook.Rolleiflex 3003 booklet (September 1984).*) Sources of data: Rolleiflex 3001 user's manual
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