Entertainment / Photography / Fresnel Magnifier: Condenser lens used at the center of some ground glass viewing screens to aid focusing.
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Entertainment / Photography / Fresnel Magnifier: Condenser lens used at the center of some ground glass viewing screens to aid focusing. MORE
Entertainment / Photography / Fresnel Lens: Condenser lens used on a spotlight to gather together the rays of light coming from a source and direct them into a narrow beam. MORE
Entertainment / Photography / Focusing Magnifier: Device to magnify the optical image and aid visual focusing. MORE