Telephoto Extender Advice

Discussion in 'Digital Photography' started by tektonnic, Jun 14, 2006.

  1. tektonnic macrumors 6502

    tektonnic

    Joined:
    Mar 6, 2006
    Location:
    Bucks, UK
    #1
    Hi, I am thinking fo getting a Kenko Teleplus Pro 300 DG to extend my Sigma 50-200mm 4 - 5.6 Fstop, on a Nikon D50, is anyone doing anything simular to this? Hows it going?

    Will it produce bad pictures, ideally looking to use it for motorsport photography..where I will rely on fast shutter speed, so is 11.2f/stop going to be really limiting?

    Any guidance on this would be great.
     
  2. Grimace macrumors 68040

    Grimace

    Joined:
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    Location:
    with Hamburglar.
    #2
    1.) Using f/11 -- you're going to have a tough time using fast shutter speeds unless everything is in *really* bright sunlight.
    2.) You probably won't be able to use autofocus above f/5.6.
     
  3. jared_kipe macrumors 68030

    jared_kipe

    Joined:
    Dec 8, 2003
    Location:
    Seattle
    #3
    Good choice on extender brand. Really bad choice on lens.
    If you want range I would suggest the 100-300mm f4, with or without a TC.

    But since your 200mm with 1.4x is going to be less than 300mm anyway, why not just get the 70-300mm f4-5.6 APO DG and skip the TC?
     
  4. tektonnic thread starter macrumors 6502

    tektonnic

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    #4
    thanks for dissing the lens, i already own it.
     
  5. Grimace macrumors 68040

    Grimace

    Joined:
    Feb 17, 2003
    Location:
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    #5
    I think what was meant was that you may not be able to use an extender at all b/c of your lens. If at its most zoomy, it is f/5.6 -- an extender will take you down at least one f-stop -- which eliminates autofocus on most cameras.
     
  6. jared_kipe macrumors 68030

    jared_kipe

    Joined:
    Dec 8, 2003
    Location:
    Seattle
    #6
    Didn't notice you said you owned it. But honestly, its gonna turn it into a 280mm f8 lens of mediocre quality. I really think you'd probably do better if you saved the money from the TC and maybe sell your other lens to get the Sigma 70-300mm APO DG. It will be a stop faster, and way sharper at 280mm.

    Sorry about "dissing" your equipment, I understand people are around with non pro lenses. I myself don't have a lens over 150mm. I've considered buying a 70-300mm APO, I just don't know if I will be satisfied with it.
     
  7. tektonnic thread starter macrumors 6502

    tektonnic

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    Mar 6, 2006
    Location:
    Bucks, UK
    #7
    Ok, fair point, sorry I thought you were just laying into me for being a cheap-skate!

    Basically I want something to cover 300 or 400mm, but I'm not that flush at the moment, i found a Nikon Fit Sigma 80-400mm F4.5-5.6 on ebay which might be worth bidding on.

    Can you hire lenses anywhere for a day?
     
  8. tektonnic thread starter macrumors 6502

    tektonnic

    Joined:
    Mar 6, 2006
    Location:
    Bucks, UK
    #8
    Ok basically I need advice on motorsport photography I think, or sports in general, I took loads of pics of f1 cars and its the physical quality of the pic, so what do i change, do i need a long lens with a 2.8 aperture? should i have increased the shutter speed (was at 1/800 or 1/1000)?

    any ideas?
     
  9. jared_kipe macrumors 68030

    jared_kipe

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    Dec 8, 2003
    Location:
    Seattle
    #9
    Shutter speed depends on subject, sometimes you can get away with slower ones if you track the subject.

    Faster lenses are better because you can have faster shutter speeds at less than optimum light conditions. But f2.8 glass is expensive. Maybe go for either a Sigma 70-200mm f2.8 or 100-300mm f4. Both are nice and very sharp.
     
  10. tektonnic thread starter macrumors 6502

    tektonnic

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    Bucks, UK
  11. DinoAdventure macrumors member

    DinoAdventure

    Joined:
    May 13, 2005
    #11
    You going to the USGP this year? I just picked up this lens for my D50 that I plan on using there. I practiced taking some pictures of my brothers car in motion, and it seems to work quite nicely.
     
  12. tektonnic thread starter macrumors 6502

    tektonnic

    Joined:
    Mar 6, 2006
    Location:
    Bucks, UK
    #12
    No, unfortunatly not! Went to the British GP (http://flickr.com/photos/tomknight) I used a 50-200mm Sigma 4:5.6f.

    I hoping to cover UK motorsport, going to the DTM on the 2nd July.
     
  13. DinoAdventure macrumors member

    DinoAdventure

    Joined:
    May 13, 2005
    #13
    Cool, those are great pics! Be sure to post some of the DTM race too!
     
  14. tektonnic thread starter macrumors 6502

    tektonnic

    Joined:
    Mar 6, 2006
    Location:
    Bucks, UK
    #14
    Any one used a Nikkor 300mm f4.5 AI on a digital back (D50,D70) ? Whats the lens like generally?
     

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