The Sigma 15mm f/2.8 EX is a 180 degree autofocus fisheye lens for full frame cameras that offers a less-expensive, third party alternative to fisheye lenses by Canon and Nikon. This review of the Sigma fisheye will cover it as compared to the more expensive Nikon 16mm fisheye and to the budget Zenitar 16mm f/2.8 fisheye (see our full review of the Zenitar fisheye) to give you an idea of which fisheye lens might be the best option for you.
I’ve long been a big fan of fisheye lenses, as I really love photographing aquatic life. (A little corny fish eye humor for you to start this review off on the wrong foot…) I’ve owned or tested seven different fisheye lenses, so I’m fairly familiar with the strengths and weaknesses various lenses bring to the table. I also have to admit that while I am an avid fisheye user, there is a lot of potential for overusing the lenses because they are so fun, and that not everyone will like the (what’s sometimes called) gimmicky look.
When used in moderation, a fisheye lens is a great lens to have, but it may not be the best lens to devote significant funds towards unless you will be using it regularly. Whether this Sigma fisheye lens is perfect for you as a less-expensive option or whether you should go for more of a budget fisheye lens is something to give consideration before buying.
Before going any further, if you’re using a crop sensor DSLR (and if you don’t know whether you are or not, chances are that you are shooting on a crop sensor camera), this is not the lens for you. Instead, opt for the Rokinon 8mm f/3.5 fisheye, which remains my favorite crop sensor fisheye lens. My Rokinon 8mm f/3.5 review praises that lens for its cheap price, great optical quality, and unique characteristics.
As is the case with all of my photography reviews, this is a “real world” review, meaning that it’s based on my use of the lens in the regular course of taking photos in the field, not arbitrary photos in a sterile lab. Some people love to photograph lab charts and look at straight out of camera shots at 100% to take a pixel-peeping look at things, but I’m not one of those people. As an actual photographer who actually takes photos, I see more value in how the lens actually performs in actual scenarios, and how edited photos from it actually look. As such, that’s how I review lenses. Actually!
With that said, let’s take a look at what makes this Sigma fisheye special… (more…)