Sigma 28-105 mm 2.8-4 Aspherical IF Camera lens





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Sigma 28-105mm f/2.8-4 Aspherical IF with Nikon F mount; very good physical condition and tested and working.
Description from the seller
The Sigma 28–105 mm f/2.8–4 Aspherical IF is a versatile standard zoom lens designed for full-frame and APS-C SLRs, produced in the late 1990s to early 2000s. It features a 12-element/11-group optical design with aspherical elements to reduce distortion and aberrations, and an 8-blade diaphragm for smoother bokeh. The lens offers a fast f/2.8 aperture at 28 mm, tapering to f/4 at 105 mm, making it brighter than most kit zooms—especially useful for indoor or low-light shooting.
It focuses down to 50 cm, delivering a 1:5.5 magnification, and uses a 72 mm filter thread. Weighing 405 g and measuring 77 × 81 mm, it includes internal focusing (IF), so the front element doesn’t rotate—ideal for polarizers and petal hoods. Autofocus is screw-driven and varies in speed depending on the camera body, with some users noting it can be noisy or prone to hunting in low light.
Engraved as Sigma Zoom 28–105mm 1:2.8–4 Aspherical IF, it’s praised for its sharpness from f/4 onward, solid build, and compact size. While wide-open performance can be soft—especially at 28 mm—it improves significantly when stopped down. Chromatic aberration and flare are reasonably well controlled for its era, though contrast may be lower than modern lenses.
Weight 14.3 oz
Viewing angle 23.3-75.4
Magnification 1/5.5
Minimum focus 19.7" (50mm)
Dimensions D 3" x L 5.1"
Diaphram 8 blades
Lens construction 12 elements in 10 groups
Filter 72mm
Min. aperture F22
Mount Type: Nikon F
Great condition and functionality.
Will be carefully packed and shipped as soon as possible.
The Sigma 28–105 mm f/2.8–4 Aspherical IF is a versatile standard zoom lens designed for full-frame and APS-C SLRs, produced in the late 1990s to early 2000s. It features a 12-element/11-group optical design with aspherical elements to reduce distortion and aberrations, and an 8-blade diaphragm for smoother bokeh. The lens offers a fast f/2.8 aperture at 28 mm, tapering to f/4 at 105 mm, making it brighter than most kit zooms—especially useful for indoor or low-light shooting.
It focuses down to 50 cm, delivering a 1:5.5 magnification, and uses a 72 mm filter thread. Weighing 405 g and measuring 77 × 81 mm, it includes internal focusing (IF), so the front element doesn’t rotate—ideal for polarizers and petal hoods. Autofocus is screw-driven and varies in speed depending on the camera body, with some users noting it can be noisy or prone to hunting in low light.
Engraved as Sigma Zoom 28–105mm 1:2.8–4 Aspherical IF, it’s praised for its sharpness from f/4 onward, solid build, and compact size. While wide-open performance can be soft—especially at 28 mm—it improves significantly when stopped down. Chromatic aberration and flare are reasonably well controlled for its era, though contrast may be lower than modern lenses.
Weight 14.3 oz
Viewing angle 23.3-75.4
Magnification 1/5.5
Minimum focus 19.7" (50mm)
Dimensions D 3" x L 5.1"
Diaphram 8 blades
Lens construction 12 elements in 10 groups
Filter 72mm
Min. aperture F22
Mount Type: Nikon F
Great condition and functionality.
Will be carefully packed and shipped as soon as possible.

