TC 1,7 with 70-200 VR, and 105VR

Discussion in 'Lens Lust' started by johan_w, May 2, 2007.

  1. johan_w


    Feb 27, 2006
    I really need some more focal length in my photography bag. And I cant afford a 300,400,500 OR a 600mm lens! Im a very poor guy. So I thinking of getting a Nikon TC 1,7 so my Nikon 70-200 2.8 VR becomes 340mm. Which I hope, will help me to get some hard to reach shots. The only thing that concerns me is the loss of quality and AF. I have read some posts where they say its sucks to use a TC, the quailty of the image is very bad, and its impossible to get focus, with Autofocus. I dont want to be one of them. I want to have sharp images, and Good AF. So. I would LOVE to know how many here thinks its sucks to use a TC with the 70-200 VR lens. I would also like to see some review, if there are any that tests 70-200VR woth 1,7TC.

    One more question. I also have a Nikon 105 VR bug lens. Will I get more Magnification then 1:1 when using a TC with it? AND more working distance?

    I would love to hear both negativ and positive comments about 1,7 TC with 70-200 VR, and 105 VR bug lens.

    Or should I sell my car and get a 400 2,8 instead?? ;) Nah. I like my car.
  2. I think it may depend on what you are shooting. Below are some pictures from the first day I used the 70-200 + 1.7 TC combo (the only daytime football game that I shot last year). I was shooting with a D2H, which focuses very quickly and the AF difference with the TC was minor. I have tried it for some wildlife and have been less happy but that may be because my subject matter shooting football fills the frame and is generally easier to focus. I have tried to use the 70-200 + 1.7TC on the D200 and have not been as happy, and I think it has been because of camera shake (I admit that my technique is not the best in the world).

    340mm @ f/4.8

    340mm @ f/5.6

    290mm @f/5.6
  3. 70-200/VR + 1.7TC @ f/9.5 1/1000s 340mm ISO400 (from the ground)

    70-200/VR + 1.7TC @ f/8 1/1000s 340mm ISO200 (from another fishing boat!)

    70-200/VR + 1.7TC @ f/6.3 1/400s 220mm ISO200

    With that combo, you need to stop down a bit from wide open (which is f/4.8)... This means that it works best with some light, both from a focusing standpoint and from an image quality standpoint: nothing new there! :smile:
  4. johan_w


    Feb 27, 2006
    So... The sweet spot is around 5,6 or 8?
  5. As you probably know, f/5.6 is only 1/2 stop down from wide open (f/4.8) and already you can see the difference with f/4.8... f/8 is 1.5 stops down from wide open and is no problem. f/6.3 is 1/3 stop down from f/5.6 and you can see the quality there...

    So, my recommendation is to use the combo anywhere between f/5.6 and f/8, unless you really have to operate wide-open because of low-light. Don't use f/4.8 just for the sake of smaller DOF. At these longer focal lengths, you can do fine with using just a bit smaller aperture...

    But, by all means, do mind the shutter speed (unless on tripod of course): don't expect sharp results at 1/30s and 300mm, even with VR!
  6. CAJames


    Sep 6, 2006
    Lompoc, CA
    I like the 70-200vr with the tc-17 a lot. I try to stop down to at least f/8.
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