Quiz On 70/400 AR Telescope incl. Backpack

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Which of these can you view with a 70/400 telescope?

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How do you calculate the magnification using an eyepiece?

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What is the focal ratio (f-number) of this telescope?

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What is the diameter (aperture) of this telescope’s main lens?

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Which optical design does this telescope use?

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What is the focal length of the telescope?

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What does the Barlow lens do?

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Why is the backpack useful for this telescope?

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Quiz On 70/400 AR Telescope incl. Backpack
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