Finally a lens manufacturer has decided to fill the gap. Sigma has come along and addressed this issue with two fast, fixed aperture zooms in a variety of camera mounts, including Nikon DX. If they are as good as they appear to be, they may for the basis for a top notch profession camera kit in DX format.
|The Sigma 18-35mm f/1.8 zoom lens mounted on a Nikon D7100 with the Sigma 50-150mm f/2.8 zoom and Nikon D5300 nearby.|
Sigma's other APS zoom is a 50-150mm f/2.8 which is equivalent to 75-225mm in full frame, pretty much the perfect size and aperture for a standard long zoom.
Both lenses are part of Sigma's new Art series intended for high end use by being better made with quality optics. While both lenses are a bit on the heavy side for what is normally associated with an APS sensor camera, they are heavier due to their large apertures, which is the whole point of these lenses, and they are still considerably lighter than their full frame equivalents. These lenses are intended to fill a gap in the APS camera range by supplying more professionally suitable optics to photographers who want to use this smaller camera format.
|Photographed with a Nikon D7100 and Sigma 50-150mm f/2.8 zoom lens.|
|The Sigma 18-35mm seems to be able to come in closer that other lenses I have used in this zoom category.|
I have already had some time to play with these lenses on the two Nikon cameras I mentioned and have been favorably impressed thus far. I suspect that if anyone is looking for a really top notch, pro outfit in the DX format, these two lenses may be the cornerstone to achieving it.