800mm first shots! :)

Discussion in 'Just For Fun!' started by Overread, Jul 18, 2008.

  1. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

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    shot lost to infinty - just imagine a long lens with a lot of teleconverters, flash and a tripod ;)

    Ok its not a real 800mm its a 70-200 + two 2*Teleconverters (canon and sigma). Turns out to get the 1.4s on needs an extension tube due to silly protuding parts!

    The results are not as bad as I thought they would be - light is key for this and very bright light out is definatly needed. Couple that with manual mode to get a little more control and a rocksteady support. Focusing is all manual and the depth of field is fine, but not too fine. Its not got the speed to capture movement - not tried in direct sunlight but then it might work - so its a stattic sniper! :)

    Test shot - taken from a beanbag support out of a window - resized, edited and sharpened.
    [​IMG]
    f9,1/6,ISO 400
    flash on
    link to larger: http://farm4.static.flickr.com/3487/3263751879_a41f01bda5_o.jpg

    web serviceable, a little less than sharp fullsized:
    100% crop from centre with no sharpening:
    [​IMG]

    with more practice and stronger light (evening overcast grey at the moment here) I recon I can get a little more out of this combo!
     
    Last edited: Feb 8, 2009
  2. icassell

    icassell TPF Noob!

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    I stack my Sigma 1.4X and Sigma 2X convertors ... they only go together one way due to the protruding parts -- but I forget off the top of my head which one has to go in front. I don't use an extension tube. It makes a useable but slow and somewhat (but not badly) degraded 280-840mm out of my Sigma 100-300mm EX f4.
     
  3. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

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    I reckon is the 1.4 that goes first - the 2.8 has a good deep insert space to it - only problem is that the size of that hole is too small for the canon 1.4 -- and my 1.4sigma was not in the shop :(

    Any shots from the 840mm?
    be interesting to see them
     
  4. icassell

    icassell TPF Noob!

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    ... I'm not home, so can't get into my archive ... I haven't taken many, so maybe I'll go out this weekend and get a few ...

    laughing here ... would be funny if you could add that 1.4 to your stack ... an 1120mm would be interesting ... you could take wildlife images with it cuz you wouldn't have to worry about movement ... they wouldn't know you were watching them from a mile away :)
     
  5. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

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    Yah - and I was also thinking of adding an extension tube and then attaching the other 1.4 (canon) 1568mm lens :) though with that I might need the sun to move closer!
    Would be good with crocodiles though! They never move - till they strike!
     
  6. icassell

    icassell TPF Noob!

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    ... not many crocs here in Arizona ...

    maybe you can get pics of the crew of the space station ...
     
  7. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    I've seen a Canon 1.4TC coupled with a 2XTC...I think the 1.4 has to go first.

    Either way, the results were better than I would have expected.

    I've got a Sigma 2X (or is it Tamron :scratch:) and I'll be trying it out with my new 70-200 shortly.
     
  8. kundalini

    kundalini Been spending a lot of time on here!

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    Just out of curiosity, what was the approximate distance from camera to subject in the test shot?
     
  9. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

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    I am hopless with guessing distances - give my till tomorrow and I will try to measure the distance (or at least get someone with a better sense of distance than me)
     
  10. kundalini

    kundalini Been spending a lot of time on here!

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    If you do the John Cleese steps, as in Monty Python, then you're talkin' about 3 meters per step, otherwise, it's about a meter per stretched step.

    BTW, nice looking kit. The only way to improve upon it is to have it all black with a Gold Ring. :lol:
     
  11. icassell

    icassell TPF Noob!

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    Yep ... love my Sigma EX stuff
     
  12. aliaks

    aliaks TPF Noob!

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    o-oh-my-god :)
     

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