canon 很多新的L头不可靠# PhotoGear - 摄影器材
b*y
1 楼
不如以前，很多部件，比如IS，USM容易坏，比如小白兔，70-200 f2.8IS ii，返修率
也很高，尼康的也一样：
http://www.lensrentals.com/blog/2012/09/lensrentals-repair-data
Lenses with High Failure Rates
Search:
Lens Avg. Weeks Per Failure Sample Size Common Problems
Canon 100-400 IS L 126 Large MF ring (10). IS (5), AF motor (4)
Canon 24-70 f/2.8 65 Very Large Resolution (26); Helicoid collar (
19)
Canon 35mm f/1.4 110 Large Resolution (18); USM motor (3)
Canon 5D Mk III 155 Large CF pins (8), electronics (3)
Canon 70-200 f/2.8 IS II 83 Very Large IS assembly (11), Optical
adjustment (10); Zoom jam (10); Barrel assembly (7)
Nikon 105 VR f2.8 Micro 118 Small VR (2), AF encoder (1), diaphragm
(1)
Nikon 16-35 f/4 VR 58 Small Resolution (3 of 3)
Nikon 70-200 f/2.8 VR II 53 Large Tripod foot bent (8); AF
adjustment (5), resolution (5)
Nikon D700 109 Moderate Bent CF pins (4); Grip peeling (4); PCB (2)
Nikon D800 55 Large Battery door (6), electronics (3)
Sigma 120-300 f/2.8 OS 13 Small Cam rails (4), focusing barrel, OS
Sigma 50-500 OS 43 Moderate HSM Motor (4), OS unit (3)
Sony 70-200 f/2.8 G SSM 71 Small USM motor (3 of 3)
Tokina 11-16 f/.28 147 Large focus jam (6); AF/MF clutch (6); loose
screw (3)
Tokina 16-28 f/2.8 57
Small AF/MF clutch (3 of 3)
也很高，尼康的也一样：
http://www.lensrentals.com/blog/2012/09/lensrentals-repair-data
Lenses with High Failure Rates
Search:
Lens Avg. Weeks Per Failure Sample Size Common Problems
Canon 100-400 IS L 126 Large MF ring (10). IS (5), AF motor (4)
Canon 24-70 f/2.8 65 Very Large Resolution (26); Helicoid collar (
19)
Canon 35mm f/1.4 110 Large Resolution (18); USM motor (3)
Canon 5D Mk III 155 Large CF pins (8), electronics (3)
Canon 70-200 f/2.8 IS II 83 Very Large IS assembly (11), Optical
adjustment (10); Zoom jam (10); Barrel assembly (7)
Nikon 105 VR f2.8 Micro 118 Small VR (2), AF encoder (1), diaphragm
(1)
Nikon 16-35 f/4 VR 58 Small Resolution (3 of 3)
Nikon 70-200 f/2.8 VR II 53 Large Tripod foot bent (8); AF
adjustment (5), resolution (5)
Nikon D700 109 Moderate Bent CF pins (4); Grip peeling (4); PCB (2)
Nikon D800 55 Large Battery door (6), electronics (3)
Sigma 120-300 f/2.8 OS 13 Small Cam rails (4), focusing barrel, OS
Sigma 50-500 OS 43 Moderate HSM Motor (4), OS unit (3)
Sony 70-200 f/2.8 G SSM 71 Small USM motor (3 of 3)
Tokina 11-16 f/.28 147 Large focus jam (6); AF/MF clutch (6); loose
screw (3)
Tokina 16-28 f/2.8 57
Small AF/MF clutch (3 of 3)
