Examples of focal ratio in a Sentence
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An eyepiece changes the focal ratio of your telescope, thus changing the magnification.
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Cameron Johnson, Popular Mechanics, 10 Nov. 2020
Cameron Johnson, Popular Mechanics, 10 Nov. 2020
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Dictionary Entries Near focal ratio
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“Focal ratio.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/focal%20ratio. Accessed 25 Apr. 2024.
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