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| sent on July 26, 2013 (8:52) | This comment has been automatically translated (show/hide original)
Thanks again to everyone, what I wonder is how come then if I click on the same condition with the stopper in front of the camera the sound does not come out this way ... Grazie ancora a tutti, quel che mi chiedo allora è come mai se scatto con le stesse condizioni col tappo davanti alla fotocamera il rumore non esce in questo modo... |
| sent on July 26, 2013 (19:23) | This comment has been automatically translated (show/hide original)
“ From the "Atacama Desert", for example, would not be possible to capture the stars with the Full Moon?
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sure, but not if you expose correctly for the Moon ... in that case, the short exposure and low ISO to not "burn" does not allow you to resume the stars ... if you want the stars have to sacrifice the Moon, also from the Atacama desert ... I just think that the apparent magnitude (brightness of a qualisiasi asterism observed from the Earth) of the full Moon is equal to -12, while that of the brightest star in our hemisphere, Sirius, is -1 , 5
" Dal "deserto di Atacama", per esempio, non sarebbe possibile catturare le stelle anche con la Luna Piena?
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certo, ma non se esponi correttamente per la Luna...in quel caso l'esposizione breve e gli iso bassi necessari per non "bruciare" non ti consentirebbero di riprendere le stelle...se vuoi le stelle devi sacrificare la Luna, anche dal deserto dell'Atacama...ti basti pensare che la magnitudine apparente (la luminosità di un qualisiasi asterismo osservato dalla terra) della Luna piena è pari a -12, mentre quella della stella più luminosa del nostro emisfero, Sirio, è -1,5
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| sent on July 26, 2013 (19:52) | This comment has been automatically translated (show/hide original)
It 's true, I had underestimated this: The light emanating from the Full Moon is, therefore, + o-, 150 times higher than the apparent brightness of any star, if not calculation palms:-D - We say that to be in the picture "... and the egg" is not enough even get on the ISS:-D ;-) who knows ...
Thank you, David, of the response. :-) Greetings. - G.Piero E' vero, l'avevo sottovalutata questa: La luce emanata dalla Luna Piena è dunque, +o-, 150 volte superiore la luminosità apparente di qualsiasi stella, se non calcolo a palmi -- Diciamo allora che per avere in foto "l'uovo e ... " non è sufficente nemmeno salire sulla ISS  chissà...
Grazie, Davide, della risposta. Un saluto. - G.Piero |
| sent on July 27, 2013 (12:27) | This comment has been automatically translated (show/hide original)
Hello Piero
between a value and the other on the scale of magnitude there is a difference in the apparent brightness of 2.5 times between about ... Sirius (-1.5) and the Moon (-12) there is a difference values ??of approximately 10, which corresponds to a difference in apparent brightness of approximately 10 thousand times! (Ie 2.5 to tenth)
Ciao Piero
tra un valore e l'altro sulla scala della magnitudo c'è una differenza di luminosità apparente pari a 2,5 volte circa...tra Sirio (-1,5) e la Luna piena (-12) c'è una differenza di circa 10 valori che corrisponde ad una differenza di luminosità apparente pari a circa 10 mila volte! (cioè 2,5 alla decima)
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| sent on August 24, 2018 (0:05) | This comment has been automatically translated (show/hide original)
Impressive.. To be able to see the stars too...
Impressionate.. poter vedere anche le stelle...
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| sent on August 26, 2018 (15:39) | This comment has been automatically translated (show/hide original)
Beautiful picture! Congratulations Alberto! Bellissima foto! Complimenti Alberto! |
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15.4 MEGAPIXEL
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ho calcolato proprio a palmi e piedi
