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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 11 Sep 2015 (Friday) 02:25
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moon, Venus and Mars Sept-10

 
mtbdudex
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Sep 11, 2015 02:25 |  #1

Crescent moon (with earth shine), Venus on the right and Mars lower left (Red dot) Sept-10 morning 5:53am rising above the treeline.
After I took this realized lens aperture not fully open so Venus has that diffraction look going on .....
Took this with my Canon 70D and 70-200L mkII lens at 70mm.
Manual mode, 1.6 sec exposure, ISO 3200

IMAGE: https://lh3.googleusercontent.com/-BiLIGIdkFWI/VfKAKnBBwpI/AAAAAAAAXMA/8XEypoRhzZA/s1280-Ic42/IMG_0867.jpg

Honestly it's an "oops" moment, I always shoot wide open with my lens, I can't remember ever seeing these diffraction spikes from the aperture pedals of the lens.

Mike R, P.E. ...iMac 27"(i7), iPad2, iPhone5s, 24" iMac, AppleTV(160), MacBook
Canon: 70D, T1i + lens:70-200 L f2.8 IS II / TC 1.4x 2x / 15-85 / f1.4 50 / UWA 11-16 Tokina
FEISOL tripod CT-3441S + CB-40D Ball Head, iOptron EQ tracker
My top 10 in Astrophotography. . .DIY acoustic panels (external link) . . APOD Aug-5-2011 (external link)

  
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S.R.M.
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Sep 11, 2015 03:00 |  #2

They looked good, didn't they! I just posted an image in another thread.
Incidentally, I always close the aperture a bit when shooting Venus in order to get the diffraction spikes. I like the "sparkle" effect :)

Cheers,
Stephen


Stephen ----- flickr (external link)
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moon, Venus and Mars Sept-10
FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
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