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  1. #1
    Junior Member

    What’s wrong with this picture of star trails?

    I tried shooting star trails but the results are not what I expected, Looking for feedback on what’s wrong. I took 160 shots of 20 second exposure at 2.8 and iso 400 with a 25 second intervalometer setting. I then post edited in Lightroom and then combined the images using Star Stax. I used a D850 with a Rokinon 14mm manual lens.


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    Attached Images Attached Images -ce11a00b-6e8b-4610-b485-88641cea29d4.jpeg 
    Last edited by Rohitn; 09-28-2019 at 05:49 PM. Reason: corrected spelling



  2. #2
    Senior Member
    Bikerbrent's Avatar

    Re: What’s wrong with this picture of star trails?

    Welcome aboard. Enjoy the ride.
    We look forward to seeing more posts and samples of your work.

    I have never tried star trails, but I would say you recorded a lot of airplane traffic during your exposure
    Brent: Poway, CA
    D7200, D200, F100
    Tokina 12-24mm
    Nikon 18-200mm
    Tokina 28-70mm f2.6-2.8
    Nikon 80-200mm f2.8
    Sigma 150-600mm
    Nikon 50 AF f1.8
    Tokina 100mm f2.8 Macro
    Nikon SB800

  3. #3
    Junior Member

    Re: What’s wrong with this picture of star trails?

    Yes, it was rush hour in the northern skies with the airplane traffic. Aside from that, it seems to me that the star trails should be more defined indicating a focusing issue. I’ve tried calibrating the lens focus but I get the same results.

  4. #4
    Senior Member
    STM's Avatar

    Re: What’s wrong with this picture of star trails?

    It was definitely a busy night for Air Traffic Control!

    Star trails are a load of fun to shoot and Star Stax is a very easy to use program. I took this outside of Phoenix, AZ with the D700 and 18mm f/3.5 AIS. I think there were about 75 exposures total.

    -startrails-1500.jpg
    Last edited by STM; 09-28-2019 at 08:42 PM.
    Nikon FTn, F2A/MD-2, Nikkormat FT2, F4E, D850, D500, D700

    8-15mm f/3.5-4.5 AFS, 15mm f/3.5 AIS, 16mm f/2.8 Fisheye AIS, 18mm f/3.5 AIS, 24mm f/2.8 AIS, 24mm f/2 AIS, 25-50mm f/4 AIS, 28mm f/2.8 AIS, 35mm f/2 AIS, 35-70mm /3.5 AIS, 50mm f/1.8 AIS, 50mm f/1.4 AIS, 50-135mm f/3.5 AIS, 55mm f/2.8 AIS Micro, 85mm f/1.4 AIS ,135mm f/2 AIS, 80-200 f/4 AIS, 105mm f/1.8 AIS, 105mm 2.8 AIS Micro, 180mm f/2.8 ED AIS, 200mm f/2 ED-IF AIS, 300mm f/2.8 ED-IF AIS, 500mm f/8 Reflex Nikkor, 600mm f/4 ED-IF AIS

  5. #5
    Junior Member

    Re: What’s wrong with this picture of star trails?

    That looks good! That’s the kind of results I’m looking for. You’ve given me another idea, I’m going to try switching to my Nikon 28-300mm lens and see if the results are any different.

  6. #6
    Senior Member
    STM's Avatar

    Re: What’s wrong with this picture of star trails?

    Quote Originally Posted by Rohitn View Post
    That looks good! That’s the kind of results I’m looking for. You’ve given me another idea, I’m going to try switching to my Nikon 28-300mm lens and see if the results are any different.
    I really don't know why the star trails were so weak in yours. Perhaps you could try to bring them up in Lightroom and then re-stack them.
    Nikon FTn, F2A/MD-2, Nikkormat FT2, F4E, D850, D500, D700

    8-15mm f/3.5-4.5 AFS, 15mm f/3.5 AIS, 16mm f/2.8 Fisheye AIS, 18mm f/3.5 AIS, 24mm f/2.8 AIS, 24mm f/2 AIS, 25-50mm f/4 AIS, 28mm f/2.8 AIS, 35mm f/2 AIS, 35-70mm /3.5 AIS, 50mm f/1.8 AIS, 50mm f/1.4 AIS, 50-135mm f/3.5 AIS, 55mm f/2.8 AIS Micro, 85mm f/1.4 AIS ,135mm f/2 AIS, 80-200 f/4 AIS, 105mm f/1.8 AIS, 105mm 2.8 AIS Micro, 180mm f/2.8 ED AIS, 200mm f/2 ED-IF AIS, 300mm f/2.8 ED-IF AIS, 500mm f/8 Reflex Nikkor, 600mm f/4 ED-IF AIS

  7. #7
    Senior Member

    Re: What’s wrong with this picture of star trails?

    Quote Originally Posted by STM View Post
    It was definitely a busy night for Air Traffic Control!

    Star trails are a load of fun to shoot and Star Stax is a very easy to use program. I took this outside of Phoenix, AZ with the D700 and 18mm f/3.5 AIS. I think there were about 75 exposures total.

    -startrails-1500.jpg
    Hi STM, Sorry for responding to your post late. I am new to star trails photo (actually new to everything in photography). Just started recently some experiments. Would like to learn more. So according to your post, the wonderful star trail photo you took was stacked with 75 images. Just wondering what are the exposure time and interval time you set for the 75 images you took? Thanks.

  8. #8
    Senior Member
    Hobbit's Avatar

    Re: What’s wrong with this picture of star trails?

    there is a program for star trails that can eliminate aircraft and such like to give just the trails, it also allows you to pick a foreground from your images

  9. #9
    Senior Member

    Re: What’s wrong with this picture of star trails?

    Which program? Thanks

  10. #10
    Senior Member
    Hobbit's Avatar

    Re: What’s wrong with this picture of star trails?

    Quote Originally Posted by blackstar View Post
    Which program? Thanks
    star trails i think its called





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