Canon 600mm Lens

Discussion in 'Photography Beginners' Forum' started by Buszaj, May 24, 2007.

  1. Buszaj

    Buszaj TPF Noob!

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    Hi everyone,
    I've been looking at photos on sites such as pBase and came a long pictures taken with a massive Canon "super-telephoto" lens. The model is EF 600mm f/4L IS USM. How do these huge telephoto lenses help, and what can they do for an SLR? (Is it excellent zoom capability?)

    Thanks a lot!
     
  2. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    There is actually no 'zoom capability'. 'Zoom' being the ability to change the focal length. That is a prime lens, which means that the focal length is always the same.

    The have more magnification, so that you can photograph things that are far away. It has a large maximum aperture (for a lens that big), which means that the whole lens must be big and heavy...that helps to get faster shutter speeds and a shallower DOF.
     
  3. DSLR noob

    DSLR noob TPF Noob!

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    The smaller the mm number the wider the angle of view or for point and shoot terms, the more zoomed out you are. The eye sees at about 50mm a 100mm lens sees twice as far away. a 600mm lens sees really far away. Much farther than a point and shoot. It's what you'd use to take wildlife photos without scarring the animal away.

    Here is my explination of focal length from another thread.

     
  4. Alex_B

    Alex_B No longer a newbie, moving up!

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    Hey, DSLR_noob .. that is really a long answer ... and you put some effort into that apparently :)

    cannot be bothered to read it in detail ... but I guess that will really help beginners.
     
  5. DSLR noob

    DSLR noob TPF Noob!

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    It is a partial answer. I took that out of a lens buying guide I wrote on another thread. It was about 3 or 4 times that length. 100% original, and did take some time to make.
     

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