Fancy taking a look at the world around you using a totally different perspective? \LIf you do, Sigma's remarkable 4.5mm f/2.8 EX DC HSM circular fish-eye may be just what you need to add to your armoury of lenses… Sigma announced the arrival of their 4.5mm fish-eye lens last November, along with a...

Originally posted 2008-01-20 on Optyczne.pl When, at the end of the previous year, Sigma announced the launch of two new ?fisheye" type lenses, designed for use with small APS-C/DX sensors, I was pleased on the one hand and a bit apprehensive on the other.

chromatic aberration too high at the very edge

Features & performance The lens itself feels solid and well-made, and the autofocus is fast and quiet. On the Nikon D300 that we tested it with, the only slight problem was that many of the focus points fell outside the image area, but you can't blame the lens for that.

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.

No, I would not recommend this to a friend

Clear Optics; Easy To Use; Firm Mount; Linear distortion; Strong Construction

Small image circle

I have been shooting sport photos for a while now and was looking for something new to spice up the images. I wasn't sure how I could use the fisheye but now I have had a chance to use it... wow. I can get some excellent images from a perspective I have never used before.

Fun lens to use...very wide and a true fish eye view! Sample Photos taken with a Nikon D200 -Lex

Unique and fun

You won't like this lens if you don't like the fish eye look

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.

Excellent lens, the macro effects are outstanding, this is what I was looking for in a micro lens. I prefer to use MF on macro photography as it gives me more control of the background.

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.