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How Focal Affects Your Astro Images - Sky - Sky & Telescope
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Most Important Beginners – Night Sky Gazing
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does the focal ratio affect a telescope (especially a Newtonian reflector)? I have heard that the shorter focal ratio the better. If I to a mirror how can
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Focal Length vs. Focal Ratio: What They Do Conceptually! #astronomy #telescope YouTube
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length in detail - Beginners Forum (No - Cloudy
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Focal Ratio vs. Aperture: What Makes an Object Look Brighter Through a - Sky & Telescope - Sky & Telescope
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ZipDob the Zip Dobsonian - Mel
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f-number Wikipedia
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Focal Ratio a Telescope, - The Alien Tech
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f-number Wikipedia
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Statistics 101: F-ratio Test Two Equal Variances In this video we learn how to use the and F-distribution to … | Degrees of freedom, Equality, Numerator
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The effects of ratio on light filter performance | Altair Astro Support
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Astrophotography, Pixel Pixel: Part 2 - Focal Ratio Effects – Break Optics
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The spherical of the with the focal ratio f / 1. | Download Scientific
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Solved 1: for Telescope Definition Equation |
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Image Effect - Beginning Deep Sky Imaging - Cloudy Nights
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101 - Lenses, Light and Magnification
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beams with focal ratio are on the focal plane.... | Download Scientific Diagram
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FRD tests |
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Formula to estimate exposure from aperture & F ratio Beginning Deep Sky - Cloudy Nights
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#1.6: THE F-RATIO "fast" vs "slow" scopes -
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Simple Formulas for the Telescope Owner - & Telescope - & Telescope
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focal - Society for Popular Astronomy
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f-ratio