|
| Weight: |
810 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
|
| Type: |
Lens
|
| Functions: |
Focusing motor for Nikon F, ultrasonic motor
|
| Length: |
121 mm
|
| Diameter: |
78 mm
|
| Max. focal length: |
35 mm
|
| Min. focal length: |
18 mm
|
| Focal length: |
Variable
|
| Lens type: |
Wide angle
|
| Zoom ratio: |
1.9x
|
| Max viewing angle: |
76.5 deg.min
|
| Auto focus: |
There is
|
| For non-full frame cameras only: |
Yes
|
| Bayonet: |
Nikon F
|
| Filter thread diameter: |
72 mm
|
| Aperture F at max. focal length: |
1.8
|
| Aperture F at min. focal length: |
1.8
|
| Minimum aperture F: |
16
|
| Number of aperture blades: |
9
|
| Minimum viewing angle: |
44.2 deg.min
|
| Number of aspherical elements: |
4
|
| Number of element groups: |
12
|
| Number of low dispersion elements: |
5
|
| Number of elements: |
17
|