65 f/2.8 Macro

Patent Publication No. 2011-191743

2011.9.29 Release Date

Filing date 2010.2.16

Example 8

Focal length f = 65.00mm

Fno 2.90 – 3.05 – 3.96

Half angle of 18.41 °

Image height 21.64

145.08mm Length Lens

Back Focus 38.20 – 47.63 – 37.80mm

Positive and negative lens group of positive and negative 4

Inner Focus + Rear Focus

Group 2, Group 3, Group 4 to move the focus method

180 f/3.5 Macro / 150 f/2.8 Macro / 135 f/2.8 Macro

Patent Publication No. 2011-191743

2011.9.29 Release Date

Filing date 2010.2.16

Example 1

Focal length f = 180.00mm

Fno 3.50 – 4.60 – 5.80

6.85 ° half angle

Image height 21.64

225.02mm Length Lens

Back Focus 64.01mm

Example 4

Focal length f = 150.00mm

Fno 2.80 – 4.00 – 5.00

8.21 ° half angle

Image height 21.64

206.53mm Length Lens

Back Focus 49.00mm

Example 5

Focal length f = 135.00mm

Fno 2.80 – 3.80 – 4.80

9.20 ° half angle

Image height 21.64

205.00mm Length Lens

Back Focus 46.50mm

Four groups of positive and negative lenses accurately

Inner Focus

The combination of convex and concave lens, low dispersion and high dispersion in the most object side lens, chromatic aberration correction

Source [EG]

cr