Teleconverter brands.

Discussion in 'Photography Beginners' Forum' started by Markw, Oct 23, 2009.

  1. Markw

    Markw No longer a newbie, moving up!

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    Hi all. I know I have had alot of threads like this lately, but you all have helped me out alot and I appreciate it. I have decided to get the Sigma 70-200 2.8 lens for my D90. If possible, I would like to get a TC for it (and all my other lenses). I know with sigma lenses, it would be best to get a sigma teleconverter, but I was wondering about some of the other brands I am hearing about. Kenko makes a 1.4x, 2x, and 3x TC for instance. I was thinking about the Kenko_2x_TC. Has anyone used these? Should I get one of these new or look for a Sigma 2x used? Is the image quality degredatopn difference between a 1.4x and 2x terribly noticeable? If so, I will just sacrifice and get a 1.4x. I wont be using it all the times, but I figure it could help out sometimes.

    Thanks!
    Mark
     
  2. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

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    Go for the 1.4TC. The image quality drop and light loss (one stop) are small and many times its not even noticable when your in good lighting. On a 70-200mm type lens the 2*TC gives a far more noticable image quality drop - it works but the results are often lesser than I would like, even when shooting at around f8 to preserve sharpness

    Eg: little birds photos test - a set on Flickr
     
  3. Markw

    Markw No longer a newbie, moving up!

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    Well thanks! I will go with a 1.4. If I find a 2x cheap, I may pick it up in the future. 280mm at (somewhere between 2.8 and 4) isnt too bad at all. I was looking through your flickr, could you tell me what This was taken with? I cant think of any macro lenses that go up to 210mm..lens with macro filter(s) I presume? You have alot of amazing shots.

    Mark
     
  4. Markw

    Markw No longer a newbie, moving up!

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    Nevermind, I think I got it. 150mm macro 1.4TC..then maybe crop?

    Mark
     
  5. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

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    A Sigma 150mm+1.4TC does ;)
    I do like the use of the 1.4TC on the macro lenses as well since it gives a little boost to magnification whilst not affecting the minimum focusing distance. I also used a Raynox DCR250 with that setup to get extra close and that shot is a crop from the original here:
    IMG_0203 on Flickr - Photo Sharing!
     
  6. Markw

    Markw No longer a newbie, moving up!

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  7. Markw

    Markw No longer a newbie, moving up!

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    Also, how did you manage to use the Raynox 250? I thought that only went up to 67mm filter size? Isnt the sigma 150 macro a 72mm filter size?

    Mark
     
  8. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

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    hmm I know Kenko make a range of teleconverters, but I have never looked into them. But I think the best of their range are the Kenko PRO range. I think but don't hold me to that

    edit - yes but if you use a stepping up ring you can attach the Raynox - and on a crop sensor camera you can't see any vignetting (least I never do).
     

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