Sigma 28mm f/1.8 EX DF RF Aspherical Lens

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A Marvelous Prime Lens From a Light Sensitive Perspective

Sigma 28mm F1.8 EX DG Lens-new versionThe Sigma 28mm f/1.8 EX is an marvelous prime lens from a light sensitive perspective. On both digital SLR and 35mm film SLRs,  I have been awed with the optical quality. Wide-open at f/1.8, it is yet more or less equal to the Nikkor 50mm f/1.8, which is to some extent short in contrast, but nevertheless resolves quite a bit of detail on the focal plane. Stopping down one or two stops, as with nearly all lenses, definitely results in more contrast and sharpness, and this lens delivers rather superbly, equivalent to the renowned 28/2.8 AI-S Nikkor for sharpness both up-close and at infinity.

Additionally, this lens allows closer focusing than the Nikkor, and encompasses less perceptible geometric distortion. As much as I am attracted to the AI-S 28, the Sigma is also quite astounding.

There is a new version of the Sigma 28mm F/1.8 EX DG prime lens since fall of 2008, (not even updated on Sigma's website yet as of December, 2010). It only has a single rib in the focus ring, not the 3 shown in all the old photos. Also to the left of the depth of field insert is the Sigma Logo only, the 28mm 1:1.8 and EX DG are now under the AF/M markings and the finish is a much better matt black than the old one with the spatter finish. It also comes with a lens cap similar to the Nikon caps. I really like the build this new 28mm lens much better than the old one.

28mm is now the normal lens on APS-C digital cameras. A 28mm lens on a DX camera provides the same angle of view as a 45mm lens on a 35mm film camera.

The Sigma lens has macro focusing resources together with a fast F1.8 maximum aperture, which is perfect for Digital SLR cameras. This lens is proficient in Macro photography, with a minimum shooting distance of 20cm (7.8 inch) (reproduction ratio 1: 2.9) and angle of view is 75.4. You can shoot images of not only the subject but also the surrounding area. The lens has an improved optical design, created to attain ample peripheral brilliance with a wide-open aperture. The are nine blades in  the iris diaphragm allowing for stunning out of focus photos (Bokeh) in the both the foreground and background.

The lens encompasses a Dual-Focus (DF) device making it is easy to hold the lens, as the focusing ring does not revolve during auto-focus, nevertheless it provides sufficient focusing torque of the focusing ring during manual focusing. what's more, this allows a Petal-type Hood to be used and for the straightforward use of a polarizing filter. It also encompasses a floating focus system and uses two aspherical lens elements to lessen aberration, distortion, and astigmatism. Additionally It has Super Multi Coating which diminishes flare and ghosting that has a propensity to occur when using digital SLR cameras. The outer surface of this lens is EX-finished to signify the exceptional build and optical quality, and to augment its look. There is a gold ring near the front lens of all EX lenses .  Dec 10, 2010

Take notice that this lens does not have a built-in motor and will not autofocus on the Nikon D40/D40x, Nikon D60, Nikon D3000, Nikon D3100 or the Nikon D5000 Cameras. ✓

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Photos shot with Sigma 28mm f.1.8 EX DG: Click a Photo for Larger Image
pink rose Nandina Berries Back patio and Nandina with berries
Dark Dreary Morning, interesting bokeh
Sigma 28mm f/1.8
Nandina Berries
Sigma 28mm f/1.8
Back patio and Nandina with berries. Sigma 28mm f/1.8
Ladds Marina, Stockton California
Ladds Marina, Stockton California. Sigma 28mm f/1.8 Another view of Brookside Lake Sigma 28mm Stockton Arroyo's Mexican Restaurant at night. Sigma 28mm f/1.8
Rio Vista Bridge on the Sacramento River.
Sigma 28mm f/1.8
Rio Vista Bridge on the Sacramento River - Photo Two. Sigma 28mm f/1.8 Rio Vista Bridge on the Sacramento River-cropped
Sigma 28mm f/1.8
Coming Soon Coming Soon Coming Soon
Homes on the Sacramento River. Sigma 28mm f/1.8 Rio Vista Launch Ramp
Sigma 28mm f/1.8
Rio Vista Launch Ramp- Cropped. Sigma 28mm f/1.8

A Fantastic Wide Prime Lens
 My sample version has no front focusing as reported on some websites. I have no reservations in recommending this lens to professionals or analytical amateurs who require a super fast low-light wide-angle lens.

I have used this lens for critical wedding photography and other challenging situations. It also has provided me a vast amount of images of my family from around the house. This lens, like the Nikkor 50mm f1.8, is a lens that I would not consider giving up. (I have photographed with the Sigma 28mm f/1.8 and the Nikkor 50mm f/1.8 side by side and apart from the angle of view, I cannot tell any dissimilarity between the two.) This lens is hard to ignore as it provides so much for the price that it is hard to ignore. And for those snobs that consider Sigma an inferior brand, you just don't know what you're missing.


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