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FORUMS Photography Talk by Genre Astronomy & Celestial Talk 
Thread started 27 Jan 2010 (Wednesday) 12:39
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Mars shooting

 
FSUnoles
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Jan 27, 2010 12:39 |  #1

http://news.nationalge​ographic.com …00125-mars-closest-earth/ (external link)

tonight you can get a great view of mars. how do we go about shooting it?


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DonR
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Jan 27, 2010 15:14 |  #2

Focus manually, using Live View and zooming in to verify focus (don't just set the lens to the far focus limit). Alternately use autofocus with the center focus point only. Make some test exposures and keep the exposure time short enough so that you don't blow out the fairly bright surface. Again, use Live View to review the exposure tests. No part of the planet should be white, except the polar ice cap if it is visible. But you would need a minimum of 1000mm focal length to see the polar ice cap or any other detail, preferably 2000mm or more. At 250mm, Mars will be little larger than a single pixel.

Don




  
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Adrena1in
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Jan 28, 2010 03:31 |  #3

For anything lower than about 1000mm focal length, shoot it like you would an extremely bright star! I'm praying for clear and steady skies so I can point my 2800mm scope at it, and see what I can get with my 2x, 3x or 4x Barlows, (or possibly a combination thereof!) ;)


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low ­ note ­ lee
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Jan 28, 2010 03:45 |  #4

DonR wrote in post #9483843 (external link)
At 250mm, Mars will be little larger than a single pixel.

Don

Looks like I'm gonna have to wait till 2014 then :(


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Adrena1in
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Jan 28, 2010 05:11 |  #5

By the way, it's not just tonight. It's been in a good position for a while and it'll still be in a good position for several months yet.


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Mars shooting
FORUMS Photography Talk by Genre Astronomy & Celestial Talk 
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