Weight, price, sharpness.

Quirky front element that can come off if your not careful.

I like this lens a lot. Fairly sharp images and reasonably priced. Not as sharp as my 8mm f2.8 AIS Nikkor, but not bad for this price point. Much lighter, also.

Similar Products Used:

Nikon 8mm f2.8 AIS

Sharpness very good for 8mm

No

For the price a real diamond!

Customer Service

Not used up to now, but I heard god things about it!

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I still have the old Minolta 7,5mm but the Sigma is much sharper and I will sell the Minolta!

True 180 degree image
Very little cromatic aberration

Softer than other 8mm lenses
Weak auto focus, even on my N80

Although this lens must have a place in the world of photography I couldn't find it. The image was softer than the Peleng and the auto focus didn't work well enough to justify the price difference (almost 3 times greater). When you're looking at a 22mm spot all the shapness you can get is important.
If you need to have the auto focus this is a good value, if you're looking for a sharper picture check out the Peleng, if you have alot of money to spend hunt down the Nikon.

Customer Service

Not Used

Similar Products Used:

Peleng 8mm