نسخه جدید لنز 18-200 سیگما معرفی شد.
Sigma 18-200mm f/3.5-6.3 II DC OS HSM که در آن از المان های FLD و SLD استفاده شده است.
This lens features FLD (“F” Low Dispersion) glass elements, which have the performance equal to fluorite glass, and SLD (Special Low Dispersion) glass elements providing excellent correction of color aberration
Lens Construction:18 Elements in 14 Groups
Angle of View (for SD1):76.5-8.1 degrees
Number of blades:7 Blades (Rounded Diaphragm)
Minimum Aperture (Wide):F22
Minimum Focusing Distance:45cm
Maximum Magnification:1:3.8
Dimensions:Diameter 75.3mm×Length 87.7mm
Weigh:490g
کد:
http://www.dpreview.com/news/1110/11100615sigma18-200versionII.asp
کد:
http://www.photographybay.com/2011/10/06/sigma-18-200mm-f3-5-6-3-ii-dc-os-hsm/