Saturn freehand!, page 2

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Astronomia View gallery (21 photos)

Saturn freehand! sent on June 23, 2012 (11:26) by Chiodi.andrea. 30 comments, 4518 views.

con Canon EF 2.0x II, 5 sec f/5.6, ISO 100,

Foto scattata a mano libera con due moltiplicatori 2x purtroppo il cielo era velato ma qualcosa è uscito crop al 100%

17 persons like it: Aiex, Aldo23, Alessandro Ghurum Carini, Alexbalbo, Aleziggio, Andrea Burla, Ciamorc, Davide Malavasi, Gpierocompostela, Johnjz, Luca Alessi, Marco Corbetta, Okpj, Robert.sgammeglia, Sergiei86, Switosky, Vittorio Vallero

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Chiodi.andrea

sent on September 17, 2012 (12:32) | This comment has been automatically translated (show/hide original)

Hello, sorry if I have not responded I had missed the notification
For Diego
I used two and a 2X extender one canon sigma.
Maybe you've miscalculated the fire:-D
I always mess up:-D
X Ellemme
You know that I'm not convinced that it becomes a 1200MM?
They told me that the multiplication with two extender combined
and 'to be calculated only on the focal length.
Thanks also to you Paul

D1ego

sent on September 17, 2012 (13:11) | This comment has been automatically translated (show/hide original)

Mah .. 300x2x2x1.6 = 1920mm equivalent wow. How did you manage to stand fast freehand 4kg of stuff to 1/30s? wow!

Chiodi.andrea

sent on September 17, 2012 (16:43) | This comment has been automatically translated (show/hide original)

For me right formula is: 300x2 = 600 + 300 of the second multiplier (not 300x2) tot. 900mm X 1.6 APSC
Total 1440 mm.
I leaned on a branch
:-D

Zipablo

sent on November 18, 2012 (13:47) | This comment has been automatically translated (show/hide original)

great photo, you give us hope to take home with objects that are difficult equipment "poor" just go away the clouds I want to try with my 70-200 x2

Chiodi.andrea

sent on November 20, 2012 (8:00) | This comment has been automatically translated (show/hide original)

Maybe with 400 mm are few.
However, you can photograph tranqullamente other stellar objects.
For example andromeda or orion.
Now you can try with Jupiter you will come out small but with 10X magnification take something.
Hello

Daniele Delfino

sent on November 20, 2013 (17:03) | This comment has been automatically translated (show/hide original)

've photographed with 1920mm f/11 at 1/30s handheld without stabilizer?
what do you do, the surgeon? wow!

Chiodi.andrea

sent on December 02, 2013 (17:53) | This comment has been automatically translated (show/hide original)

No. I was resting on a branch!
Hello thanks

Sergiei86

sent on December 02, 2013 (18:07) | This comment has been automatically translated (show/hide original)

According to me the right formula to calculate the focal length is:
300x2 = 1920 = 600X2 = 1200x1.6

I think it is so because you have 300 mm passing through the first multiplier 600, at which point they become again pass through a multiplier that doubles them making them in 1200, only to end up with the crop factor APS-C that transforms everything in a monstrous 1920mm ;-)

Mathematics aside remains a great shot:-D

Max57

sent on March 30, 2014 (19:15) | This comment has been automatically translated (show/hide original)

Azz! Wow! (Technical term):-D

Chiodi.andrea

sent on April 02, 2014 (18:44) | This comment has been automatically translated (show/hide original)

Thank you Max!

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