vik dhillon: phy217 - basic principles
vik dhillon: phy217 - instruments - simple imagers
Optical system of a telescope
Astronomy 203 Practice Final Exam Solutions
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optics - What is prime focus of a telescope - Physics Stack Exchange
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In an astronomical telescope, focal length of objective lens is `75 cm` and that - YouTube
vik dhillon: phy217 - instruments - re-imagers
Innovative focal plane design for large space telescope using freeform mirrors
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Confused with scope focal length - what am I missing? - Beginners Forum (No astrophotography) - Cloudy Nights
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Sketch of the focal plane as observed by a CCD camera installed in the... | Download Scientific Diagram
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Light Vortex Astronomy - Article: How to Very Accurately Calculate your Telescope's Effective Focal Length
