Sigma 18-50mm f/2.8 DC DN Contemporary L-Mount

Weight: 290 g
Brand: Sigma
Description: Mount: Mamiya 645, lens type: standard, focal length: variable, min. focal length: 55 mm, max. focal length: 110 mm, aperture F at min. focal length: 4.50, aperture F at max. focal length
Peculiarities: Auto focus, internal focus
Type: Lens
Length: 74.5 mm
Diameter: 65.4 mm
Max. focal length: 50 mm
Min. focal length: 18 mm
Focal length: Variable
Lens type: Standard
Zoom ratio: 2.8x
Bayonet: Leica L
Aperture F at max. focal length: 2.8
Aperture F at min. focal length: 22
Number of aperture blades: 7