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Milky Way

Discussion in 'Astrophotography' started by uscrx, Apr 19, 2015.

  1. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    EM-5, 12-35mm at 12mm f2.8, ISO 3200. 4:22 AM MT. Lassen.

    P4190001a.
     
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  2. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    Canon 5D MKii. Sigma 15-30mm. 15mm @ f3.5. ISO3200. 4:02 AM

    MG_7339.
     
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    • Informative Informative x 1
  3. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    What it really looks like with stars.

    P4190006a.
     
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  4. foxtail1

    foxtail1 Science geek & photo nut

    Dec 30, 2011
    Southwest Virginia
    Kristi
    Lovely images!
     
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  5. pellicle

    pellicle Mu-43 All-Pro

    Feb 10, 2010
    Southport, OzTrailEYa
    pellicle
    Hi

    Not entirely sure what I'm seeing:) here (especially the "with stars" because its all stars (with some level of interstellar dust and some dots as galaxies, which are massive clusters of stars). Is it that the EM-5 is more IR sensitive?

    Beautiful shots though :)

    I likeyour bee shot on flickr too
     
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  6. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    Thank you!
     
  7. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    This is my first real attempt at Milky Way. Learned a bunch. Currently trying to learn to properly post edit.
     
  8. maritan

    maritan Mu-43 Veteran

    388
    Oct 30, 2014
    What was the duration of the shot with E-M5? Nice shots. :)
     
  9. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    Here's the short answer. 30 seconds @ f2.8 ISO 3200. Standard Milky Way setting.

    Long Answer,

    I used an App called Stellarium to identify the time and the location of the Milky Way that's above the horizon. The center of the bright Milky Way is between the arrow point of the constellation Sagittarius and Scorpio. And yesterday and today were New Moon...so very dark. I preset the manual focus to slightly below infinity while at home since it's pretty hard to manually focus in the dark. I actually drove to the spot during the day to check out the scenery but I really couldn't grasp how it would span in the dark sky. This time of the year here on Northern Cal, the Center of the Milky doesn't rise above the horizon until well after midnight. This is very evident on Stellarium.

    Once I arrived at the marked location in Mt. Lassen, I shot with both 5D2 and OM-D. I didn't have f2.8 wide angle for 5D but I have to say high ISO performance is better on the FF in my opinion.

    Here's the shot during the day.

    P4180212b.
     
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  10. Lcrunyon

    Lcrunyon Mu-43 Top Veteran

    758
    Jun 4, 2014
    Maryland
    Loren
    Interesting comparison. My understanding is that all else being equal, you should be able to hold the full frame open longer without incurring star trails. Equality was not the case here, but still, the Canon looks sharper.
     
  11. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    Star trail is a factor of focal length. Wider the FL, less prone to star trail. There are rules of 500 and 600. Divide 500 by FL and that how long sutter can stay open without significant trail.

    500/24 = about 20 seconds.

    500/15 = about 30+ seconds.

    The biggest hindrance to Milky Way photo is Noise imo. So lower ISO and lower sutter speed are what I want to strive for.

    Sent from my SAMSUNG-SM-N900A using Mu-43 mobile app
     
  12. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    I think Milky Way photo is 50% photo shoot and 50% Post Processing.. This is truly a learning experience for me. Going to try again during the next New Moon... with some foreground subject etc.

    MG_7339c.
     
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  13. Lcrunyon

    Lcrunyon Mu-43 Top Veteran

    758
    Jun 4, 2014
    Maryland
    Loren
    Yes, but I also read that crop factor can change the equation.

    http://www.davemorrowphotography.com/p/tutorial-shooting-night-sky.html

    I'm not speaking from my own experience, though. I've never done astrophotagraphy myself.
     
  14. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade

    Yes crop factor changes the equation.

    Because m43 crop factor is 2X, I multiplied 12mm X 2 to to get 24mm.

    So on FF, I had a 15mm lens. On m43, I had 12mm which I counted as 24mm due to 2X crop factor.

    So for the 500 rule, I use the crop factor adjusted focal length.

    Sent from my SAMSUNG-SM-N900A using Mu-43 mobile app
     
  15. wjiang

    wjiang Mu-43 Hall of Famer

    I'd say for me it's like 50% planning, 25% shooting, 25% PP.
     
  16. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    That is true...as I spent days preparing and looking for a Vista point.

    Sent from my SAMSUNG-SM-N900A using Mu-43 mobile app
     
  17. Petrochemist

    Petrochemist Mu-43 Top Veteran

    652
    Mar 21, 2013
    N Essex, UK
    Mike
    If your Planning includes getting the right location, then that could be reasonable. How dark the sky is makes a huge difference from what I've heard. Skies round my way are moderate, much better than inner cities but lacking anywhere really dark. these days even going 20 miles offshore you'd still be surrounded with wind turbines all with warning lights...
     
  18. Djarum

    Djarum Super Moderator

    Dec 15, 2009
    Huntsville, AL, USA
    Jason
    Nice photos. I like the color rendetion on them.
     
    • Like Like x 1
  19. uscrx

    uscrx Mu-43 Veteran

    440
    Aug 26, 2011
    Shasta Cascade
    You can use this map to guage the light pollution. Western US is darker than the East.

    http://www.youcanseethemilkyway.com/light-pollution/

    Sent from my SAMSUNG-SM-N900A using Mu-43 mobile app
     
  20. Petrochemist

    Petrochemist Mu-43 Top Veteran

    652
    Mar 21, 2013
    N Essex, UK
    Mike
    Iceland is closer to me than either. I was hoping to get some star shots in last night, as I was in Norfolk where skies are darker, but there was too much cloud... :boohoo:
    Thanks for the link, it seems more up-to date than some i've seen.