Recommend telephoto and extender

Discussion in 'Canon Lenses' started by tecboy, Nov 21, 2015.

  1. tecboy

    tecboy No longer a newbie, moving up!

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    Now, I have the budget for telephoto plus extender. I mostly shoot race cars in the racetrack, so I need a faster auto-focus motor. Which ones would you recommend?


     
  2. DB_Cro

    DB_Cro No longer a newbie, moving up!

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    First question that'll pop up will be "what's your budget"?
    Seems like the obvious and most important piece of info.

    Sigma 70-200 2.8 with a 1.4x extender on your 70D would be a very cheap entry into that
    big range (that's 450mm equiv.), and if you don't mind loosing another stop of light maybe
    the 2x.

    Fast focusing? Canon lenses do it better, but if you want to kill the great focusing speed of
    any lens you just add the extender. ;) 100-400 Canon lens seems like a good idea too but
    you'd end up at like F/8 which would mean you need high ISO and the 70D might not like
    that.

    Maybe forget the extenders and get a sigma 120-300 f/2.8?
    That thing is.. omg. :eek:
     
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  3. Rob5589

    Rob5589 No longer a newbie, moving up!

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    Canon 300 2.8 II and Canon 1.4x III extender. Hey, you didn't give a budget and I figured I would live vicariously through you:D
     
  4. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

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    You're going to have to give a budget for us to work with. We can go from hundreds to thousands very easily with telephoto lenses. Without an idea of your budget we can't give any meaningful answers
     
  5. tecboy

    tecboy No longer a newbie, moving up!

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  6. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

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    What focal length lens did you use for those shots?
    Depending how far or how close you can get a 70-200mm f2.8 lens might be ideal for what you need. However if you need more reach a 300mm f4 or 400mm f5.6 might be better suited to your needs. A 300mm f4 and 1.4 teleconverter might be an ideal combo as it gives you the 300mm reach and the option to go up to 420mm f5.6 with the teleconverter.
     
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  7. jaomul

    jaomul Been spending a lot of time on here!

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    Why not Canons new 100-400 and forget the extender
     
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  8. tecboy

    tecboy No longer a newbie, moving up!

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    I shot these images 70-300mm focal length. These look pretty sharp and clear. Just want to try out with better glass. There are two canon 100-400. Just curious, what is the difference.
     
  9. jaomul

    jaomul Been spending a lot of time on here!

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    Price and performance
     
  10. runnah

    runnah Moderator Staff Member Supporting Member

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    Really any that isn't at least a f/2.8 is not going to work well with an extender.
     
  11. DB_Cro

    DB_Cro No longer a newbie, moving up!

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    I'd agree in his case since his camera starts falling apart around ISO1600, but on a FF body that can produce clean ISO6400+ shots - why not?
    I'd say F/4 is an option too.

    But yeah, I'd avoid converters if possible, and the 100-400 is rather cheap if F/4.5-5.6 is not an issue, and it wouldn't be for me.
    However, I'd rather buy 70-200 F/2.8 and add a converter then buy both of those lenses.
     
  12. SCraig

    SCraig Been spending a lot of time on here!

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    I'd recommend deciding on the focal length range that you need and then find a lens that fits your price in that category. That in turn is going to depend on how close you can get to the cars.

    In my opinion, a fast lens at a racetrack during daylight is a waste. Since most times the shutter speed is around 1/100 to 1/200 second if there's not enough light to use virtually any lens something is definitely wrong. The only times I shoot at less than f/11 to f/16 during a day race is when it's really, REALLY cloudy.

    The photos you showed above were taken at between 150mm and 165 mm. Of the 5,000+ photos I've taken at races this year only a handful were above 200mm. Most were around 50mm to 70mm with a few as wide as 38mm.
     
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