Telephoto Lens - Help in Selection

Discussion in 'Photography Equipment & Products' started by ravikiran, Mar 21, 2007.

  1. ravikiran

    ravikiran TPF Noob!

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    Hai Everyone,
    I got to consult you regarding purchase of new lens. I am interested in wildlife photography and am looking for a telephoto lens at the cheapest prices. I got through two lens
    1. Opteka 500mm f/8 telephoto lens - $70
    2. Kenko 420-800mm f/8.3-16 lens - $160
    I didn't find many reviews regarding both the lens and would like to know your opinion on the issue. I would be very happy if there's anyone who had a feel of any of the two lens and would like to share their experiences.
    One more important doubt --- I have a Nikon D50 and Sony Alpha100 cameras. As they were providing T-Mount adaptors for both of the lens, is it sufficient if I buy one lens(with Nikon T-mount) and an Sony T-mount?

    amiably,
    Ravi Kiran.
     
  2. Alex_B

    Alex_B No longer a newbie, moving up!

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    f/8 or f/8.3-16 will be very painful (high iso or loooong exposures needed).

    that combined with the length of > 400 will be very hard to handle!
     
  3. Big Mike

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

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    Those lenses are cheap for a reason...they are crap. You would be much better off getting a cheap 70-300mm zoom and cropping the image.
     
  4. ravikiran

    ravikiran TPF Noob!

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    Oh. Thank you Alex and Mike. I was aware of that, but was just tempted by the low price. That's it. Anyway thank you for the help.
     
  5. Rmclain3

    Rmclain3 TPF Noob!

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    I agree with Mike and Alex. I had the Phoenix 500mm mirror lens and hated it. It was very hard to focus and you needed a very bright sunny day for it to be useful. Don't do it!!
     
  6. ravikiran

    ravikiran TPF Noob!

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    Thank you so much Clain. I am now against the idea. Once again thank you.
     

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