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FAB
Stargeezer
Reged: 08/06/04
Posts: 2686
Loc: Blythe, CA USA
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I thought it would be interesting to post three images of the same object taken at three different magnifications. It illustrates how, like astronomy, an increase in magnification results in a reduction of field. It also shows how, like astronomy, less magnification is often better. The object is a cross section of a common pine stem. Sorry, I'm not enough of a botanist to know the type of pine. My scope is an achromat, not an APO. There are APO microscopes, but like APO astronomical telescopes, they're beyond my pocket book. All the images are single shots, not stacked. The first is taken at 400X.
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Floie
10.0" Hardin Dob
6.0" Konus Refractor
3.0" Celestron Tabletop Newtonian
10X50 Binoculars
Amscope T490A Trinocular Compound Microscope
Amscope SM 1TZ Trinocular Stereo Zoom Micoscope
http://home.earthlink.net/~blhtvl
http://www.cracblythe.org/index.html
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FAB
Stargeezer
Reged: 08/06/04
Posts: 2686
Loc: Blythe, CA USA
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Here's the same pine stem at 100X.
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Floie
10.0" Hardin Dob
6.0" Konus Refractor
3.0" Celestron Tabletop Newtonian
10X50 Binoculars
Amscope T490A Trinocular Compound Microscope
Amscope SM 1TZ Trinocular Stereo Zoom Micoscope
http://home.earthlink.net/~blhtvl
http://www.cracblythe.org/index.html
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FAB
Stargeezer
Reged: 08/06/04
Posts: 2686
Loc: Blythe, CA USA
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. . . and finally at a mere 40X.
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Floie
10.0" Hardin Dob
6.0" Konus Refractor
3.0" Celestron Tabletop Newtonian
10X50 Binoculars
Amscope T490A Trinocular Compound Microscope
Amscope SM 1TZ Trinocular Stereo Zoom Micoscope
http://home.earthlink.net/~blhtvl
http://www.cracblythe.org/index.html
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KennyJ
The British Flash
Reged: 04/27/03
Posts: 20139
Loc: Lancashire UK
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Floie ,
Thanks for those beautiful and very interesting photos .
I can't decide which image I like the best ! :-)
Regards , Kenny
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Milton Wilcox R.I.P
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EdZ
Professor EdZ
Reged: 02/15/02
Posts: 18806
Loc: Cumberland, R I , USA42N71.4W
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Quote:
Floie ,
Thanks for those beautiful and very interesting photos .
I can't decide which image I like the best ! :-)
Regards , Kenny
I too am impressed with these images. You've also clearly shown how it is necessary to apply significant amounts of magnification to see detail in the images, a fact many observers fail to recognize. We often hear observers talking about how they prefer telescopic images with 2-3mm exit pupils, when it might be necessary to use a 1mm to 0.5mm exit pupil to really see minute details. You have shown that very well here.
edz
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Teach a kid something today. The feeling you'll get is one of life's greatest rewards.
member#21
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