The Sigma 85mm f1.4 as a macro lens?
Almost anyone who has been photography for awhile knows that an 85mm focal length lens is considered perfect for portraits. The lens is flattering to the human face and an 85mm lens is relatively small and unobtrusive. With a fast aperture of f1.4 you can get micro-thin slice of focus that makes your subject pop off the screen in a sea of blur. No wonder wedding photographers, journalists and fine-art photographers love a fast 85mm lens (see this review of the Sigma 85mm lens for portrait shooting).
I had planned to use my Sigma 85mm lens to do pet portraits and kid photos but have not yet set up any shoots of these subjects. This weekend for grins I went out with just the 85mm to see what I could do with nature subjects. Right away I found out that the Sigma focuses really close and at f1.4 I got a really lovely wash of blur that looked painterly (see below).
I loved the look of the shallow depth-of-field but wanted the lens to focus even closer. The easy answer of course is too add an extension tube which is simply a hollow tube that pushes the lens away from the camera and allows the lens to focus closer. To learn more about extension tubes see this link.
I grabbed my set of Kenko extension tubes and slapped the 36mm tube between the camera and the Sigma 85mm lens. Suddenly the Sigma portrait lens focused super close and I could make frame-filling photos of all sorts of wee things in nature. I loved the soft painterly look I was getting using the lens wide open at f1.4. And the best thing, at such wide apertures, is that shutter speeds were lightning fast so I could just hand hold the camera and get tiny pricks of sharp focus in a wash of blur. The Sigma 85mm f1.4 is now going with me in my nature photography photo bag as my ‘artistic ‘macro’ lens. I am looking forward to taking it with me on my upcoming spring photo tour. Watch out Monet!