Sigma 105mm f2.8 EX DG OS Macro - Nikon F-Mount Category_Lens Filters it has a circular aperture

it has a circular aperture with a maximum of F1

ZUIKO DIGITAL 45mm 1:1

dependable digital imaging system that performs superbly in demanding shooting settings — even in rain or mist

5lbs lighter than its predecessor

It takes up the idea of ​​Christoph Schlingensief

Sigma 105mm f2.8 EX DG OS Macro - Nikon F-Mount Category_Lens Filters it has a circular apertureThis large aperture medium telephoto macro lens offers advanced performance of close up photography. Sigmas own proprietary OS (Optical Stabilizer) system enables handheld close up photography. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent correction for all types of aberration and distortion. A floating focusing system moves two different lens groups in the optical path to different positions. This