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Thread: What's the difference between the fisheyes?

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    What's the difference between the fisheyes?

    Nikon has a 16mm fisheye

    Canon has a 15mm fisheye

    What's the difference between the two different focal lengths? Don't all fisheyes have a viewing angle of 180°?

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    1mm

    I dont believe all have 180 degree at all
    Darren
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    can't remember Tannin's Avatar
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    Quote Originally Posted by Top View Post
    Don't all fisheyes have a viewing angle of 180°?
    No. Never have had. Hell, my beautiful little Tokina 10-17 fish is a zoom!
    Tony

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    Isn't the tokina 10-17mm the only zoom fisheye? How does it compare to the other "primes" (aka, say a Canon 15mm?)

    I'm also kind of curious why the comparison between two different brand lens fisheyes?

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    Quote Originally Posted by Top View Post
    Nikon has a 16mm

    Canon has a 15mm

    What's the difference between the two different focal lengths?
    Quote Originally Posted by kiwi View Post
    1mm

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    Quote Originally Posted by Watchamacallit View Post
    Isn't the tokina 10-17mm the only zoom fisheye? How does it compare to the other "primes" (aka, say a Canon 15mm?)

    I'm also kind of curious why the comparison between two different brand lens fisheyes?
    On a cropped sensor, the 15mm and 16mm primes would hardly be "fishy" at all, ie these prime fisheyes would only really give the intended effect on a full frame sensor. The Tokina 10-17 is intended for a cropped sensor and gives a "full-frame equivalent" of 16mm. At the 10mm end it is very fishy; at 17mm, it is almost rectilinear.
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    Quote Originally Posted by Tricky View Post
    On a cropped sensor, the 15mm and 16mm primes would hardly be "fishy" at all, ie these prime fisheyes would only really give the intended effect on a full frame sensor. The Tokina 10-17 is intended for a cropped sensor and gives a "full-frame equivalent" of 16mm. At the 10mm end it is very fishy; at 17mm, it is almost rectilinear.
    I had a squiz through Tannin's thread on the 10-17mm and noticed what you mentioned. Haven't really looked at fisheyes myself (no current need for the effect) but something I'll keep in mind for the future.

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    There is a good article on fisheye lenses on Wikipedia. It explains that early fisheyes were circular and all 180˚.

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