The sigma 18 35mm f 1 8g is not a good candidate to be mounted on a full frame camera especially at the shortest end of the focal length.
Sigma 18 35mm full frame.
Sigma s choice of f1 8 as maximum aperture isn t a coincidence.
It means that the lens will offer the same control over depth of field as an f2 8 zoom does on full frame.
But full frame camera owners do not have a zoom lens wider than f 2 8 available to them.
The sigma 18 35mm f 1 8 dc hsm art lens is a bit of an equalizer in this comparison.
Designed specifically for aps c sized sensors the sigma 18 35mm 1 8 translates to 27mm 52 5mm on 35mm camera.
This sigma 18 35mm f 1 8 is an optically superb lens but it s also much bigger and heavier than similar fixed lenses like the superb nikon 35mm f 1 8 dx the 18 35mm zoom range only works out to be equivalent to about 28 55mm on full frame.
Designed specifically for aps c sized sensors the sigma 18 35mm 1 8 translates to 27mm 52 5mm on 35mm camera.
Sigma 18 35mm f1 8 dc hsm a lens the first and fastest of its kind truly a revolutionary product the sigma 18 35mm 1 8 dc hsm is the first wide angle to standard zoom lens to achieve a large aperture of 1 8.
Tapping into sigma s long history of lens innovations the 18 35mm 1 8 dc hsm incorporates a wide glass molded aspherical lens with special low dispersion sld glass to compensate for aberrations and curvature at the widest angle.
Some dx aps c lenses are known to work quite well on full frame cameras with some vignetting that can be removed in the corners the nikon 35mm f 1 8g is a good example of such lens.
Sigma 18 35 1 8 art on canon 5d mark ii ff full frame low light in door s 1 30 f 1 8 iso 1250.
While this lens is designed to cover only an aps c sized camera sensor this lens mounts and functions on a full frame dslr.
In reply to xjrsimx apr 15 2015 as long as i have a nikon crop body in my arsenal i will always have the 18 35mm f1 8 in my case.