What will provide better telephoto zoom quality?

Discussion in 'Digital Photography' started by VirtualRain, Jun 3, 2010.

  1. VirtualRain macrumors 603

    VirtualRain

    Joined:
    Aug 1, 2008
    Location:
    Vancouver, BC
    #1
    I currently own a Canon 70-300 IS USM for telephoto work. I find it perfectly acceptable for the amount that I use it.

    I have a possible opportunity to buy a good used 70-200 f4L IS specimen, but I would almost certainly want to get a 1.4x extender which would give me near the same reach as my 70-300 and at the same f5.6 aperture.

    The question is, would the 70-200 x1.4 provide worse, better, or similar image quality to the 70-300 at the long end?
     
  2. iBookG4user macrumors 604

    iBookG4user

    Joined:
    Jun 27, 2006
    Location:
    Seattle, WA
    #2
    It will provide better image quality than your current lens, even with the 1.4x extender. You can look at comparison shots here, 280mm is the 70-200mm with the 1.4x extender. :)
     
  3. HBOC macrumors 68020

    Joined:
    Oct 14, 2008
    Location:
    SLC
    #3
    Yes, the 70-200 IS will be night and day difference in IQ from the 70-300IS. If it wasn't, no one would shell out 3x the cost for a lens that is 100mm shorter, ya know?

    i see 70-300IS's going for $400-$450 range, and the 70-200IS for $900-$1000.
     
  4. VirtualRain thread starter macrumors 603

    VirtualRain

    Joined:
    Aug 1, 2008
    Location:
    Vancouver, BC
    #4
    Thanks, that's very helpful... it is significantly sharper even with the extender.

    I was aware of the L glass strengths in the 70-200 range, I just wasn't sure how it compared around 300 with the extender. But my question has been answered!

    Cheers!
     

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