Third EyE/alpha's

Minolta AF 28mm F2.0

산들바람 2009. 2. 2. 21:50

Information

Release year

1986

Minimum aperture

F/22

Maximum aperture

F/2.0

Aperture blade

7

Elements, groups

9, 9

Min. focus distance

30cm

Focus design

Internal

Length

49mm ~ 52mm

Filter

55mm, front

Hood

Bayonet, flower

Weight

285g

Dimension

49.5mm x 66.5mm

 

Photodo test result: 4.1
Effective focal length: 28
Weighted MTF for 28 mm: f2 0.65. f2.8 0.79. f4 0.81. f8 0.82
Average Weighted MTF: 0.82 Grade: 4.1
Weighted MTF 10 lp/mm: 0.90
Weighted MTF 20 lp/mm: 0.79
Weighted MTF 40 lp/mm: 0.56
Distortion: % - %


 

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