Leica 11626 manual Aperture Stop

Page 4

LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH.

4

 

 

MTF graphs 16 mm

100[%]

 

Aperture Stop 4.0

 

 

 

 

1

80

 

 

 

 

60

 

 

 

 

40

 

 

 

 

20

 

 

 

 

0

 

 

 

 

0

5

10

15

20

 

 

 

 

Y'[mm]

100[%]

 

Aperture Stop 5.6

 

 

 

 

 

80

 

 

 

 

60

 

 

 

 

40

 

 

 

 

20

 

 

 

 

0

 

 

 

 

0

5

10

15

20

 

 

 

 

Y'[mm]

100[%]

 

Aperture Stop 8.0

 

 

 

 

 

80

 

 

 

 

60

 

 

 

 

40

 

 

 

 

20

 

 

 

 

0

 

 

 

 

0

5

10

15

20

 

 

 

 

Y'[mm]

The MTF is indicated at full aperture and at

f/5.6 and f/8.0 at long taking distances (infinity). Shown is the contrast in percentage for 5, 10, 20 and 40 lp/mm accross the height of the 35 mm film format, for tangential (dotted line) and sagittal (solid line) structures, in white light. The 5 and 10 lp/mm will give an indication regarding the contrast ratio for large object structures.The

20 and 40 lp/mm records the resolution of finer and finest object structures.

sagittal structures

_ _ _ _ _ _ _ _ tangential structures

Image 4
Contents Leica TRI-ELMAR-M 16-18-21 mm f/4 Asph Lens shape 18 mm Lens shape 21 mm Leica TRI-ELMAR-M 14/16-18-21 mm Asph Aperture Stop Relative Distortion 100% Effective Distortion Ymm Depth of field mm Leica TRI-ELMAR-M 16-18-21 mm f/4 Asph Leica TRI-ELMAR-M 16-18-21 mm f/4 Asph 591 Leica TRI-ELMAR-M 16-18-21 mm f/4 Asph Leica TRI-ELMAR-M 16-18-21 mm f/4 Asph 448 568 433 598 Leica TRI-ELMAR-M 16-18-21 mm f/4 Asph Leica TRI-ELMAR-M 16-18-21 mm f/4 Asph