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| World of Nature Images of animals taken in the wild, in captivity or of pets in your home. |
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#1 |
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Member
Join Date: Apr 2002
Posts: 125
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Took Mars again last night, and finally got a better image :
![]() the first one is this, which I think is poorer: ![]() Last edited by Starman; 23rd August 2003 at 02:18 PM. |
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#2 |
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Member
Join Date: Jun 2003
Posts: 293
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Wow, im impressed. SUre its not your mentos? good job!
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#3 |
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Member
Join Date: Jun 2003
Location: Changi
Posts: 147
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nice shot!!!!! could even see one of its polar caps!! |
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#4 | |
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Member
Join Date: Apr 2002
Posts: 125
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Anyway shooting this fellow was tough especially with strong winds last nite. |
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#5 |
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Moderator
Join Date: Jan 2002
Location: Katong
Posts: 4,702
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Where are the men?
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#6 | |
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Member
Join Date: Apr 2002
Posts: 125
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#7 |
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Member
Join Date: Apr 2002
Posts: 125
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by the way, here is the scope used to take Mars. The bright object behind is the moon. That camera is a 10D. Taken at Dawn
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#8 |
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Member
Join Date: Feb 2003
Location: Green Mile
Posts: 627
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#9 |
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Senior Member
Join Date: Jan 2002
Location: South Pole with Penguins
Posts: 5,133
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up up up up
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#10 |
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Member
Join Date: May 2002
Posts: 1,024
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impressive!!
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#11 | |
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Member
Join Date: Dec 2002
Location: Cantonment
Posts: 552
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wai !!!!! Wherez ya pic ??? ![]() |
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#12 | |
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Member
Join Date: Jul 2003
Location: Singapore
Posts: 1,103
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#13 |
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Member
Join Date: Dec 2002
Location: Singapore
Posts: 59
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Your photos are not oriented correctly (relative to each other). The south polar caps are, er, not in the south.
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#14 | |
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Member
Join Date: Apr 2002
Posts: 125
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Of course I can rotate it, but I prefer to leave the authenticity at the eyepiece as it is. |
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#15 |
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Member
Join Date: Dec 2002
Location: Singapore
Posts: 59
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Just want to know for sure (not in any ways a criticism of your shots) --- the different orientation is an artifact of the positioning of your eyepiece? And not because Mars has rotated that much within a day?
If the former, shouldn't the photographer take the responsiblility to show the "truth", and hence ensure that the eyepiece is positioned correctly everytime? |
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#16 | |
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Member
Join Date: Jun 2003
Location: Changi
Posts: 147
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The reason why Mars seems to have "rotated" is because both pics were taken at different periods at nite and since the planets move across the sky in a curved/elliptical path, their poles will seem to have shifted when viewed from one location on Earth. Hence, this is the "truth". We are jus too accustomed to the "rightened" pics of planets we see in books, when in fact, such laws don't exist in space. |
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#17 | |
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Member
Join Date: Apr 2002
Posts: 125
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For example, in a refractor design scope (those normal straight through scopes as most people will know), putting just an eyepiece will show an upside-down image at the eyepiece. It's like a normal pin-hole camera..upside down image. But if you put a star diagonal before the eyepiece, the image obtained will be a straight-up image but with left and right reverse. And if the user use a straight-up diagonal instead, then he will get a straight up image with left and right correct. It depends on teh scope design and accessories And if you use other kind of scope design, you might get other orientation.That's why I saw some other images are mirror images of mine....that's because he uses other scopes. In astrophotos orientation is normally not important because things like galaxies, star clusters don't really have a "right" orientation. So designers of scopes don't really bother if you have a straight up image. And if you live far south (Australia, NZealand) all your astro images will be upside down too. |
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