Telephoto advice 5-20 miles

Discussion in 'Photography Equipment & Products' started by Joetest, Oct 12, 2019.

  1. Joetest

    Joetest TPF Noob!

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    Noob Rebel EOS T5 owner wants telephoto resolution at the level of identifying what a person is doing from 5-20 miles away. What ~$200 lens do you recommend?


     
  2. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    In order to capture a 10-foot tall/wide scene from just 5 miles away, you'd need a focal length of around 60,000mm. No such production lens exists, let alone one for two c-notes.

    Even if one did, particulate matter and turbulence in the atmosphere, as well as camera shake, would probably render the image useless.
     
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  3. Jeff15

    Jeff15 TPF junkie!

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    Noob Rebel EOS T5 owner wants telephoto resolution at the level of identifying what a person is doing from 5-20 miles away. What ~$200 lens do you recommend?

    Good luck...........:biglaugh:
     
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  4. petrochemist

    petrochemist TPF junkie!

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    A remote camera.
    Atmospheric conditions are such that it would rarely be possible to even see there is a person at that distance whatever the lens.
     
  5. Original katomi

    Original katomi No longer a newbie, moving up!

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    And the elephant in the room asks ,,,, why does some want to photograph at that distance
     
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  6. photoflyer

    photoflyer TPF Supporters Supporting Member

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    So I'm not the only one.

    Short of renting time on a satellite...way more than $200... this is your cheapest bet:

     
  7. Derrel

    Derrel Mr. Rain Cloud

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    Unless you are in a tower or other high place the curvature of the earth prevents you from seeing more than about 8 Miles, right?
     
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  8. photoflyer

    photoflyer TPF Supporters Supporting Member

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    Eight inches per mile. It better be bone dry too.
     
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  9. Soocom1

    Soocom1 Been spending a lot of time on here!

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    Actually, it depends on terrain and obstructions.
    If in Kansas, you can see Toto and Dorothy at about 12 miles on a clear and un-humid day. At 20 miles IF and ONLY if your at a higher as you point out.

    But atmospheric conditions and curvature limit to about that point.
     
  10. smoke665

    smoke665 TPF Supporters Supporting Member

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    Unless you're a member of the Fraternity like Wesley in the movie "Wanted" then you can curve the bullet, and shoot around corners.....wonder if that applies to taking pictures also??? :allteeth:
     
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  11. Derrel

    Derrel Mr. Rain Cloud

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    Well obviously Terrain is a big factor. For example where I live I can see Mount Rainier which is approximately 120 miles north of here... Of course Mt. Ranier is over 13,000 feet high...but this morning as I was eating in a restaurant and making the above post I could not see my hometown a mere 7.5 Mi to to the north of me... but I could easily see both Mount Saint Helens, and Mount Hood each about 65 miles away or so I would estimate.
     
  12. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    Rookie. I just went outside and was able to see things approximately 93,000,000 miles away. Tonight, I'll be able to look at things millions of light-years away. :345:
     
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