Nice review. I love my Nikon Fisheye. For those who don't like the circular look, you can turn it in to a wide angle with fisheye-hemi.

Why is Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye better than the average? ; Widest aperture at maximum focal length · f/2.8 · f/3.2 ; Weight · 470 · g ; Minimum ...

One of the most unusual lenses a photographer can use as it produces a circular image within a black surrounding frame. It is ideal for landscapes and panoramic ...

Very nice lens. Sturdy, works well with camera's functions, very decent focus even to edge. A little on the heavy side, but not objectionable. I use this with a ...

Read our detailed comparison of Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye vs Canon EF-S 17-55mm f/2.8 IS USM and find out the pros and cons of each lens ...

Sigma's 4.5mm F2.8 EX DC Circular Fisheye HSM creates an image that is a circular, curved, distorted view of reality when used on a digital SLR camera.

slip-in gel filter frame at rear of lens; minimum focusing distance: 5.3"; constructed of 13 elements in 9 groups; lens is 3" in diameter, 3-1/8" long ...

I purchased this lens to match a full-frame circular fisheye on a Nikon D300. This lens fits the bill. The images are stunning and sharp.

The Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for EF Mount is a lens that gives a creative distortion and exaggerated perspective to your photos.

One of the most unusual lenses a photographer can use as it produces a circular image within a black surrounding frame. It is ideal for landscapes and panoramic ...