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Thread: gopro 2 flat lent

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    RBW Member edivad is an unknown quantity at this point edivad's Avatar
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    gopro 2 flat lent

    Hello,
    just received a new gopro 2 camera.
    Now the problem is ... which flat lent ? I want to spend less than 100 euro ( so no golem gear and similar)
    I would use it for wreck dive between 50 and 80 mt (in the highest definition) ... There is something on the market? Vignetting is not a big problem for me

    thank you

    davide

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    RBW Member BillGraham is on a distinguished road BillGraham is on a distinguished road BillGraham's Avatar
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    Re: gopro 2 flat lent

    Check with Sartek.

    Sartek Industries Home Page

    Carl probably has a flat port housing for it. The one he did for the original Hero HD is listed for $100.

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    RBW Member fl001203 is an unknown quantity at this point fl001203's Avatar
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    Re: gopro 2 flat lent

    Hi davide,

    Two links where you will find your happiness


    Lentille Oculus pour caméra GoPro HD



    BlurFix Gopro

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    Re: gopro 2 flat lent

    Quote Originally Posted by edivad  View Original Post
    Hello,
    just received a new gopro 2 camera.
    Now the problem is ... which flat lent ? I want to spend less than 100 euro ( so no golem gear and similar)
    I would use it for wreck dive between 50 and 80 mt (in the highest definition) ... There is something on the market? Vignetting is not a big problem for me

    thank you

    davide
    You may also wish to try a shop from Germany GOPRO HD Kameras

    /GKAM

  5. #5
    RBW Member edivad is an unknown quantity at this point edivad's Avatar
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    Re: gopro 2 flat lent

    Thank you very much.
    At the end I chose the oculus lent because it is sold in europe (no overseas shipping) and seems to be more resistent to the pressure. We will see...

    the uk-germany aluminium housing is wonderful...but too expensive for me...

    davide

  6. #6
    RBW Member Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse is a glorious beacon of light Packhorse's Avatar
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    Re: gopro 2 flat lent

    Why does the Go Pro have a curved lens? Is it part of the optics of the camera? Does it turn it into a Wide Angle lens?

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    RBW Member fl001203 is an unknown quantity at this point fl001203's Avatar
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    Re: gopro 2 flat lent

    Quote Originally Posted by Packhorse  View Original Post
    Why does the Go Pro have a curved lens? Is it part of the optics of the camera? Does it turn it into a Wide Angle lens?
    The gopro is mainly used in ground sports. You have to buy a flat lens to remove the fuzzy due to curved lens. The optics of the gopro can shoot wide angle.

  8. #8
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    Quote Originally Posted by Packhorse  View Original Post
    Why does the Go Pro have a curved lens? Is it part of the optics of the camera? Does it turn it into a Wide Angle lens?
    It's to support the internal fisheye optics of the lens in air.

    Underwater it's in the wrong position and/or too small to all the gorpo to focus on the virtual image the dome projects. You need a flat lens to fix this, you you get serious vignetting with most of them and on medium fov the image is ~30% narrower due to refraction through the flat interface.

    A larger dome, positioned more forward would do the trick I suspect and enable fisheye optics underwater.

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