File:Focal ratio.svg
Summary
Diagram of the <a href="https://en.wikipedia.org/wiki/focal_ratio" class="extiw" title="w:focal ratio">focal ratio</a> of a simple optical system where <img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/132e57acb643253e7810ee9702d9581f159a1c61" class="mwe-math-fallback-image-inline mw-math-element" aria-hidden="true" style="vertical-align: -0.671ex; width:1.289ex; height:2.509ex;" alt="f"> is the <a href="https://en.wikipedia.org/wiki/focal_length" class="extiw" title="w:focal length">focal length</a> and <img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f34a0c600395e5d4345287e21fb26efd386990e6" class="mwe-math-fallback-image-inline mw-math-element" aria-hidden="true" style="vertical-align: -0.338ex; width:1.935ex; height:2.176ex;" alt="{\displaystyle D}"> is the diameter of the <a href="https://en.wikipedia.org/wiki/Objective_(optics)" class="extiw" title="w:Objective (optics)">objective</a>.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:43, 12 January 2017 | | 643 × 341 (4 KB) | 127.0.0.1 (talk) | Diagram of the <a href="https://en.wikipedia.org/wiki/focal_ratio" class="extiw" title="w:focal ratio">focal ratio</a> of a simple optical system where <span><span class="mwe-math-mathml-inline mwe-math-mathml-a11y mw-math-element" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow class="MJX-TeXAtom-ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>f</mi></mstyle></mrow><annotation encoding="application/x-tex">{\displaystyle f}</annotation></semantics></math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/132e57acb643253e7810ee9702d9581f159a1c61" class="mwe-math-fallback-image-inline mw-math-element" aria-hidden="true" style="vertical-align: -0.671ex; width:1.289ex; height:2.509ex;" alt="f"></span> is the <a href="https://en.wikipedia.org/wiki/focal_length" class="extiw" title="w:focal length">focal length</a> and <span><span class="mwe-math-mathml-inline mwe-math-mathml-a11y mw-math-element" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow class="MJX-TeXAtom-ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>D</mi></mstyle></mrow><annotation encoding="application/x-tex">{\displaystyle D}</annotation></semantics></math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f34a0c600395e5d4345287e21fb26efd386990e6" class="mwe-math-fallback-image-inline mw-math-element" aria-hidden="true" style="vertical-align: -0.338ex; width:1.935ex; height:2.176ex;" alt="{\displaystyle D}"></span> is the diameter of the <a href="https://en.wikipedia.org/wiki/Objective_(optics)" class="extiw" title="w:Objective (optics)">objective</a>. |
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