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Thread: After 1200mm, what else can shoot a bird 100 meters away?

  1. #21

    Default Re: After 1200mm, what else can shoot a bird 100 meters away?

    Quote Originally Posted by Snoweagle
    Imagine a Canon EF lens having that same focal length.
    Well, tt telescope weighs 11 tons..

  2. #22
    Senior Member
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    Default Re: After 1200mm, what else can shoot a bird 100 meters away?

    Quote Originally Posted by AReality
    Well, tt telescope weighs 11 tons..
    Yes, it's an electronic telescope.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  3. #23

    Default Re: After 1200mm, what else can shoot a bird 100 meters away?

    Quote Originally Posted by Snoweagle
    Wow...that's a lot! Imagine u add a 2X converter becomes 4000mm f/22!!
    Yeah. It is very common for astro shoots. You can add a Barlow lens (like a teleconverter) or use eyepiece projection and the magnification can even go higher.. then you will probably spend more money on the telescope mounts and tripods.

    This telescope has a focal length of 3000mm.
    http://www.buytelescopes.com/product...=7&pid=1550&m=
    Last edited by lsisaxon; 15th February 2006 at 10:28 AM.

  4. #24
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    Default Re: After 1200mm, what else can shoot a bird 100 meters away?

    Quote Originally Posted by lsisaxon
    Yeah. It is very common for astro shoots. You can add a Barlow lens (like a teleconverter) or use eyepiece projection and the magnification can even go higher.. then you will probably spend more money on the telescope mounts and tripods.

    This telescope has a focal length of 3000mm.
    http://www.buytelescopes.com/product...=7&pid=1550&m=
    Woah...but of cos telescopes have much greater focal lengths to view as far as space. If seen those by Bushnell and are quite popular, though the better ones costs a few thousand dollars.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  5. #25

    Default Re: After 1200mm, what else can shoot a bird 100 meters away?

    Quote Originally Posted by Snoweagle
    Woah...but of cos telescopes have much greater focal lengths to view as far as space. If seen those by Bushnell and are quite popular, though the better ones costs a few thousand dollars.
    Usually the quality dictates the price. If the optics are ground to very high precision, you can get greater magnification and of course it will cost a whole lot more.

  6. #26
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    Default Re: After 1200mm, what else can shoot a bird 100 meters away?

    Quote Originally Posted by lsisaxon
    Usually the quality dictates the price. If the optics are ground to very high precision, you can get greater magnification and of course it will cost a whole lot more.
    Yes, all these are precision optics
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

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