Understanding Eyepieces - the Brevard Astronomical Society

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ERFLE Wide field of view. Performs best at low power for wide field observations. Brevard Astronomical Society
KELLNER Good choice for “beginner” telescopes. Brevard Astronomical Society
Page 1 and 2: Understanding Eyepieces A Simple Gu
Page 3 and 4: A neat set of eyepieces came in the
Page 5 and 6: Eyepiece focal length is almost uni
Page 7 and 8: A 12mm eyepiece will produce a magn
Page 9 and 10: A 25mm eyepiece will produce a magn
Page 11 and 12: Wait a minute! There’s More! Brev
Page 13 and 14: Eyepieces are composed of a combina
Page 15 and 16: http://www.daviddarling.info/encycl
Page 17: PLOSSL Wider field of view than ORT
Page 21 and 22: Light Loss and Ghosts Anti-reflecti
Page 23 and 24: Actual Field of View The actual fie
Page 25 and 26: Brevard Astronomical Society
Page 27 and 28: Exit Pupil 7mm Brevard Astronomical
Page 29 and 30: Eye Relief The distance between you
Page 31 and 32: Barlow Lenses A Barlow is a negativ
Page 33 and 34: Final Analysis One big deciding fac

Understanding Eyepieces - the Brevard Astronomical Society

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