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And, why aperture matters.
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How a lens creates an image
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Nakedgun
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Lady Fraktor
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Re: How a lens creates an image
Interesting thoughts
Some refractors, eyepieces, mounts and related equipment
The only culture I have is from yogurt
The only culture I have is from yogurt
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StarHugger
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Re: How a lens creates an image
Awesome graphics and well covered.
Thanks for sharing it.
Thanks for sharing it.
Experimental Solar Lunar & Planetary Imaging.
"Imagination will often carry us to worlds that never were, but without it we go Nowhere"
Carl Sagan.
Currently on an extended hiatus in search of darker skies, hope to see you all again real soon,
Best of luck out there My Friends.
"Imagination will often carry us to worlds that never were, but without it we go Nowhere"
Carl Sagan.
Currently on an extended hiatus in search of darker skies, hope to see you all again real soon,
Best of luck out there My Friends.
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John Baars
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Re: How a lens creates an image
Quite revealing!
Refractors in frequency of use : *SW Evostar 120ED F/7.5 (all round ), * Vixen 102ED F/9 (vintage), both on Vixen GPDX.
GrabnGo on Alt/AZ :* TS Optics 50mm ED F4, *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets, but no GnG).
Most used Eyepieces: *Panoptic 24, *Baader Morpheus 17.5, 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
Amateur astronomer since 1970.
GrabnGo on Alt/AZ :* TS Optics 50mm ED F4, *SW Startravel 102 F/5 refractor( widefield, Sun, push-to), *OMC140 Maksutov F/14.3 ( planets, but no GnG).
Most used Eyepieces: *Panoptic 24, *Baader Morpheus 17.5, 14, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Commonly used bino's : *Jena 10X50 , * Canon 10X30 IS, *Swarovski Habicht 7X42, * Celestron 15X70, *Kasai 2.3X40
Rijswijk Public Observatory: * Astro-Physics Starfire 130 f/8, * 6 inch Newton, * C9.25, * Meade 14 inch LX600 ACF, *Lunt.
Amateur astronomer since 1970.
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Caldwell 14
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