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Thread: My Lens is bigger then yours!!!

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    My Lens is bigger then yours!!!

    Canonís 5200mm prime, is this enough zoom for you?

    Canon?s 5200mm prime lens is super rare and quite massive | News | Geek.com


    For those of you who dont want to read the article i included a video




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    so its a telescope?
    nikon d3000 with 18-55 kit lens and 70-200 and 35mm prime
    pentax k1000 with 50mm a 28-85mm and a 70-200mm
    argus rangefinder c-3 50mm
    Minolta Maxxum 3000i 28-70mm
    Minolta XD11 28-70mm 28-80mm and 50mm with automatic film winder and Vivitar Auto Thyristor 3900 flash
    1930's kodak vigilant 616
    brownie hawkeye

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    I remember reading recently an article of a 250kg 1700mm f/4 Zeiss lens for Hassleblad.

    So no, that isnt the biggest lens in existence. Its only 220 pounds, ~100kg.

    Zeiss Apo Sonnar T* 1700 mm F4 lens: Digital Photography Review
    Nikon D600 + AF-S 28mm+50mm f1.8 + AF-S 16-35mm+70-200mm f4 VR

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    Where does it say its the biggest lens in existence? is says - The world's largest dedicated SLR Super Telephoto lens.

    I believe the Hubble Space Telescope is the winner for the biggest.
    Last edited by ShaneF; 09-02-2013 at 08:39 AM.

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    You are just now discovering this lens??? Geez, we have talked about it around here for years.
    I've reached the age where my brain went from "You probably shouldn't say that" to "What the hell, let's see what happens."

    Amateurs worry about equipment, professionals worry about time, masters worry about light.


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    Well for only having just recently taken a interest in photography a few months ago im not up to what was discussed on this forum 2 years ago and i though it was interesting. Maybe some of the members who were not around 2 years ago might find it interesting also.

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    Dao
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    Maybe you are not too active in here. That lens and video was quoted in the past week or 2 ago. But that's ok, we understand since interesting things always pop up here once in awhile. Thanks for the post anyway.

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    EDL
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    I understand it's for sale too...or was. I think they were asking $76,000 for it. I'm not sure on that, but I think I remember an article on this lens somewhere that said that.

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    KmH
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    Quote Originally Posted by ShaneF View Post


    I believe the Hubble Space Telescope is the winner for the biggest.
    The Hubble isn't very big at all, having a 7.9 foot mirror.

    The Hubble's big advantage is it's above Earth's atmosphere.

    The 7.9 foot primary mirror was made by Perkins-Elmer and was shaped wrong such that it had sever spherical aberration.
    A testing device (null corrector) used during mirror figuring to assure a properly shaped non-spherical mirror, had been incorrectly assembled.
    Unfortunately, the error in the primary mirror would not be detected until Hubble was on orbit.

    The Gran Telescopio Canarias single aperture telescope has an effective light gathering surface that is just over 34 feet across (10.4 m, or 410 inches), which is 4.3 times greater than the diameter of Hubble's mirror. Gran Telescopio Canarias - Wikipedia, the free encyclopedia

    The Large Binocular Telescope has 2, 8.4 meter mirrors. Large Binocular Telescope - Wikipedia, the free encyclopedia

    The Keck Observatory's optical telescope interferometer has 2, 10 meter mirrors. W. M. Keck Observatory - Wikipedia, the free encyclopedia
    Last edited by KmH; 09-03-2013 at 09:51 AM.
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    Quote Originally Posted by KmH View Post
    The 7.9 foot primary mirror was made by Perkins-Elmer and was shaped wrong such that it had sever spherical aberration.
    A testing device (null corrector) used during mirror figuring to assure a properly shaped non-spherical mirror, had been incorrectly assembled.
    Unfortunately, the error in the primary mirror would not be detected until Hubble was on orbit.
    If I'm not mistaken, the initial problems with the mirror on Hubble was a failure to convert Metric measurements from the European team to Imperial measurements from the US team. That's why I'm still pissed off with the US promise to go metric back in the 60's. How difficult is base 10?
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    Dao
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    You know, I think it is more difficult for not using metric.

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    KmH
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    Quote Originally Posted by kundalini View Post
    If I'm not mistaken, the initial problems with the mirror on Hubble was a failure to convert Metric measurements from the European team to Imperial measurements from the US team. That's why I'm still pissed off with the US promise to go metric back in the 60's. How difficult is base 10?
    That issue was between NASA and Lockheed. The conversion of newton-seconds to pound-seconds was the f-up, and cause a very expensive Mars probe to dip into the atmosphere of Mars and burn up.
    Mars Climate Orbiter - Wikipedia, the free encyclopedia
    Last edited by KmH; 09-03-2013 at 12:05 PM.
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