A true fish-eye covers 180 degrees in all directions and produces a
circular image in the middle of the frame. They aren't very useful. Most
people use a rectangular fish-eye, which produces a full-frame image and
covers 180 degrees across the diagonal.
Pentax makes a rather nice 17-28 mm. zoom that is fisheye at the 17 mm.
end. Cost you about $450 or so.
Some of us have found an alternative that is both good and inexpensive:
the Russian-made Zenitar 16mm. f2.8 fisheye. It is a sharp, sturdy lens
that sells here for about $175. It comes in both M42 screw and k-mount
(plus Nikon mount). It is a manual focus lens. I bought mine for
inexpensive fun, but find that I use it often and happily recommend it.
Some recent purchasers have found quality variation in these lenses, so
buy one from a dealer who offers a warranty, then take it right out and
shoot some slide film.
There are two or three dealers in the U.S. who sell the Zenitar lens
(check eBay). If you are not in the U.S. I'm not sure what to recommend.
It is possible to buy it directly from Moscow.
Joe
> Hi All,
>
> I am new to photo and I have a question that ahs been a mistery to me so
> far...
>
> A person that I met before had a pentax "student-level" SLR camera witha
> 35-80mm lens that came with the kit. He wanted a "fish-eye" lens and he
> bought this lens that he adapted ( screw mount) on top on the 28-80mm. This
> lens actually cost under 100 dollars, I believe so.
>
> So, Anybody know what are these "fish-eye" lens for low cost? I mean, what
> is the name of the equipment, and a example of a model/make. Does pentax
> make such equipment?
> I went to a store and they told me that such thing don't exist and a "fish
> eye lens" cost usually over 1.500,00 dollars....
>
> All the Best
>
> Leonardo Silveira
>
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