Sigma Ex Dc Hsm 10 20mm. Sigma 1020mm f/3.5 EX DC HSM Canon EFS Lens Lenses and Cameras It was introduced amongst a flurry of announcements as manufacturers raced to provide wideangle zooms for the burgeoning APS-C format DSLR market, with similar offerings also appearing in short measure from the likes of Tamron and Tokina (not to mention all of the major camera. The more modest wide-angle coverage of this one compared to the 8.
Sigma 1020mm f/3.5 EX DC HSM review Digital Camera World from www.digitalcameraworld.com
This lens was preceded by the slower Sigma 10-20mm F4-5.6 EX DC which had screw-drive autofocus. The Sigma 10-20mm f/3.5 EX DC HSM Lens does change size slightly when zooming, reaching full extension around 10mm, full retraction at 15mm and then extends slightly again at 20mm
Sigma 1020mm f/3.5 EX DC HSM review Digital Camera World
Unlike Sigma's ultra-wide 8-16mm f/4.5-5.6 DC HSM lens, there are no FLD elements in the optical path of the 10-20mm, but there are two ELD (Extraordinary Low Dispersion) elements and one SLD (Special Low Dispersion) element in the mix.Build quality feels as good as in the 8-16mm lens but with the same lack of weather-seals The more modest wide-angle coverage of this one compared to the 8. Sigma''s 10-20mm F4-5.6 EX DC ultra-wide zoom lens for digital SLR cameras is ideal for landscape photography, building interiors, group and party pictures and so much more
Sigma DC HSM 1020mm f45.6 Wide Angle EX lens Nikon Mount Camera Exchange. The objective end of the lens has a significantly wider. I highly recommend that APS-C sensor format body owners include a 10-20mm (or similar) focal length lens in their kit as such a lens is extremely useful
Sigma 1020mm f/3.5 EX DC HSM review Digital Camera World. Judging from the field of view specified by Sigma this lens is closer to being a 12-23mm lens than being a true 10-20mm lens f/3.5 - This lens has a maximum aperture of 3.5 across the entire zoom range