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Got a spare EF400 2.8L or two?

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    Got a spare EF400 2.8L or two?

    Blimey

    Now here's a neat use of Canon's lenses: the University of Toronto owns one of the smallest professional astronomical telescopes in the world that uses an
    Canon 1DX, 50D, EF500 F4.0 L, EF100-400 f/4.5-5.6L I , EF100-400 f/4.5-5.6L II, EF70-200 f/2.8L II, EF180 f3.5L Macro, EF 24-105 f/4L, EF17-40 f/4L, EF2.0X III, EF1.4X III, 430EX II, MR-14EX...

    #2
    Re: Got a spare EF400 2.8L or two?

    But you think the 10 lenses are bad, it has expanded now to 48!!!

    The most recent upgrade—completed in 2016—saw Dragonfly grow to 48 lenses in two clusters.

    Canon 1DX, 50D, EF500 F4.0 L, EF100-400 f/4.5-5.6L I , EF100-400 f/4.5-5.6L II, EF70-200 f/2.8L II, EF180 f3.5L Macro, EF 24-105 f/4L, EF17-40 f/4L, EF2.0X III, EF1.4X III, 430EX II, MR-14EX...

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      #3
      Re: Got a spare EF400 2.8L or two?

      Do you think they hand hold it or would they need a tripod?

      Cheers,
      John

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        #4
        Re: Got a spare EF400 2.8L or two?

        They appear to have a smaller lens at the bottom too, possibly for aiming it all? I wonder if the two arrays means it works as a stereoscopic 3D camera
        Last edited by TonyT; 02-11-2016, 11:20.
        Canon 1DX, 50D, EF500 F4.0 L, EF100-400 f/4.5-5.6L I , EF100-400 f/4.5-5.6L II, EF70-200 f/2.8L II, EF180 f3.5L Macro, EF 24-105 f/4L, EF17-40 f/4L, EF2.0X III, EF1.4X III, 430EX II, MR-14EX...

        Comment

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