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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.
Fantastic lens. For an idea of what this lens can do, go on any of the picture social websites.
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.
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).
This product is great except cost. If you don't mind spending around $900 then this lense is for you!!!! If you are budget minded you could get a manual lense far cheaper that produces the same great pics. The only reason for 4 stars is cost everything else is wonderful.
The sigma 4.5mm fisheye is a full 180 field of view lens. It distorts the image a great deal; and only uses about 1/4 of the frame in your APS camera. There are two uses for it; scientific recording and taking some unusual perspective photos.
Well, it was o.k. but because of the vignetting I found that my autofocus just did not work well at all, the image is very small in the viewfinder too, and so judging manual focus was really difficult. The only thing is to visually inspect the distance by looking at the top of the lens.
You probably need more money than sense, or be a scientist on a grant to buy this. I am the former. Used on a D300 it gives a staggering globular image that you need to zoom in on with your preferred software to make a useable rectangular image.
should i have got the full frame nikon 10.5?
Combined with Nodal Ninja rotating tripod heads, I'm using this lens to produce equirectangular 360deg x 180deg panoramas. Six shots in 60deg increments work perfectly when stitched with Hugin or AutoPano.