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|Weight||1.03 lb (470 g)|
|Dimensions (dxl)||Approx. 3.0 x 3.1" (7.62 x 7.87 cm)|
|Minimum focus distance||5.3" (13.46 cm)|
|Focal length||4.5 mm|
|Angle of view||180°|
|Camera mount type||Nikon F|
|Format compatibility||Nikon DX
FX in DX Crop Mode
|Maximum reproduction ratio||1:6|
It's weird and wonderful, as a fish-eye should be. This is a solid lens offering from Sigma. In spite of the enormous depth-of-field that is inherently available in such a lens, auto-focusing is a useful thing.
This Sigma 4.5mm was bought for night star shots, horizon to horizon, and it does that indeed. In other uses, if one can keep one's feet out of the frame, it is wonderful for cityscapes. A walk in the park can be almost magical with this real fisheye.
MyCircular Fisheye Lens arrived at home without damage one day earlier.
Fantastic lens. One of the best fisheyes I've owned and some of my others have been far more expensive.
Fantastic lens. For an idea of what this lens can do, go on any of the picture social websites.
This lens captures extremely blurry photos and the depth of field is horrible. It is just impossible to have whole frame in focus (Or may be its an issue with the piece I received). I have just raised a return request to seller.
Like the lens, but it took a LONG time to get it.
I picked this one out for my Sony Alpha 77 from all the other options, because this one has autofocus. I take a lot of self portraits and I needed autofocus for that purpose. It is exactly what I expected, works well in low light, sufficiently sharp, and fun to use.
This is the most extreme fish eye lens you can get for a APS-C camera. With a full 180 view, you get a full circular image, like the Sigma 8mm FE on a full frame cmera. Good lens quality. Luminous, fast and an excellent minimal distance of focus.
Perhaps I got a bad lens, but this lens is far too soft for my purposes. Remember, 180 degrees of vision is squeezed into a circle within the rectangular canvas of your camera's sensor (hence circular fisheye).