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The Summicron, has I think, double this number of elements. (In fact, the Elmar has only 4 elements which means that even in uncoated form it transmits light with minimum flare and fall off. Most of the high cost of the Summi goes in designing and building a lens that also performs extremely well but opens up that bit more. In fact if you are content to use one with modest specs (like the Elmar) you will find that it produces superb results. In addition, lens hoods can offer some degree of physical protection for the lens due to the hood extending farther than the lens itself.Although it probably should not do so, it always surprises me how good are the more modest lenses made and sold by many camera manufacturers.
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Lens hoods are often designed to fit onto the matching lens facing either forward, for normal use, or backwards, so that the hood may be stored with the lens without occupying much additional space. For wide angle lenses, the length of the hood cannot be as long as those for telephoto lenses, as a longer hood would enter the wider field of view of the lens. Lens hoods are more prominent in long focus lenses because they have a smaller viewing angle than that of wide-angle lenses. This allows the lens hood to block stray light with the higher portions of the lens hood, while allowing more light into the corners of the image through the lowered portions of the hood. 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. Teikoku Kogaku (Zunow Opt.) ZUNOW 50mm F/1.1 Ĭosina Voigtlander Color-Skopar 50mm F/2.5 LTM Ĭosina Voigtlander Heliar 50mm F/2 LTM (Cosina 50th Anniversary, Bessa 10th Anniversary) Ĭosina Voigtlander Nokton 50mm F/1.5 Aspherical LTM 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. Leitz Wetzlar Summilux 50mm F/1.4 “Oskar Barnack 100th Anniversary” Leitz Wetzlar Noctilux-M 50mm F/1.2 ASPH. Leica Summilux-M 50mm F/1.4 Platinum “Sultan of Brunei” Leica Summilux-M 50mm F/1.4 Gold “Sultan of Brunei” Leica Summilux-M 50mm F/1.4 (150 JAHRE PHOTOGRAPHIE, 75 JAHRE LEICA PHOTOGRAPHIE) Leica Summilux-M 50mm F/1.4 “Traveller Edition” Leica Summicron-M 50mm F/2 (50 Jahre SUMMICRON) Leica Summicron-M 50mm F/2 “King of Thailand” Leitz Wetzlar (Canada) Summarit 50mm F/1.5 Ĭosina Voigtlander Heliar 50mm F/2 VM (Voigtlander 250th Anniversary) Leitz Canada Summicron-M 50mm F/2 “1913-1983”Ĭosina Voigtlander Apo-Lanthar 50mm F/2 Aspherical VM Ĭosina Voigtlander Nokton 50mm F/1 Aspherical VM Ĭosina Voigtlander Nokton 50mm F/1.2 Aspherical VM Ĭosina Voigtlander Nokton 50mm F/1.5 Aspherical II VM Ĭosina Voigtlander Nokton 50mm F/1.5 Aspherical VM
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