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Nikon 6T vs Canon 500D @ 200mm

Discussion in 'General Technical Discussion' started by Panos Kazanelis, May 10, 2005.

  1. Well, here it is... flame me but I'm just as surprised as you will be...

    Lens:Nikkor 80-400mm f/4.5-5.6 D ED AF VR
    2: Nikkor 80-200mm f/2.8 D ED N

    Test constants:
    Light: (natural light in my living room, it took me 6' 30" so I guess it was constant)
    Distance: Although the tripod remained I had to move a little the subject
    Focus Distance: The lens said 2.8-3.0m but it was more-or-less 30cm (1ft)
    Drinks: The famous Greek Frappe (icy shaken instand coffee with lots of milk!!!)
    Subscribe to see EXIF info for this image (if available)

    ...and for the red Xs...
  2. MontyDog


    Jan 30, 2005
    #1064 - You have an error in your SQL syntax;
  3. jkamphof

    jkamphof Guest

    I think the focus on both lenses are not the same so when the 80-200 focuses it actually focuses longer than the 80-400. For example take a prime lens (macro lens is a good example) and manually rotate the focus from closest to infinity. You should see the focal range move a few millimetres as well (as the elements move forwards and back). Some lenses (I think the micro 60mm) have a 5mm to 10mm focal change when focusing from close to infinity.

    I also would like a test but at f/5.6 simply because 2.8-4 has a pretty low DOF anyway, and both lenses also offer an f/5.6. However an f/4 would be nice as well if you feel inclined to retest ;) 

    Good info!

  4. Paul, that's one of the surprising elements of my home-made amateur test... I tend to agree with Joel, but I have to repeat the test with more parqameters (including more f/#)... I guess...
  5. Gale


    Jan 26, 2005
    Viera Fl

    I like what I see with the 80-400 VR VR VR :>)))

    I have heard it works great with the 24-120 VR VR VR :>))

    Pardon my sillyness.

    I have to get one thats all there is to it. It is sitting in the cart at B&H since this morning.

    You guys are a terrible influence on my credit card. I'll send you the balance..
  6. Chris101


    Feb 2, 2005
    Gale - my singlet (one lens, as opposed to the doublet Canon and Nikon cu lenses) +2 and +3 B+W close up lenses work fine with my 24-120vr. And they are about half the price.
  7. Chris101


    Feb 2, 2005
    Panos, thanks for doing this test. Man, that 80-400vr looks nice!
  8. Chris101


    Feb 2, 2005
    Hi Paul, I thought about this. Each of the lenses is set to 200mm. Now when additional elements (the close-up lens) are added to the lens, it is no longer a 200mm lens. Adding positive lenses to the front of a lens, makes the lens longer. From comparison of the image sizes in Panos' work, the 80-200@200 changes to something slightly longer than the focal length the 80-400@200 becomes once new front elements are attached.

    So I'm thinking the test should be conducted so the image sizes are all equal. It's the only thing that's directly measureable.
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