### EF 16-35mm f / 2.8L III USM ###
Lens construction: 16 elements, 11 groups, 2 UD and 3 Aspherical
SWC coating
ASC coating
Flourine coating
9 aperture blades
0.28m minimum focusing distance
Ring type USM
Full-time manual focus
Dust and weathersealed
maximum magnification: 0.25 times (35mm), 0.12 times (16Mm)
EF 12II when using photographic magnification: 0.65X-0.36X
EF 25II when using photographic magnification: 1.14X-0.80X
Weight: 790g
Total length: 127.5mm
Maximum diameter: 88.5mm
Filter Size: 82mm
BR鏡片似乎沒套用在16-35iii上。另外，光圈葉片數9，星芒應該與24-70ii、24-70 f4、11-24、16-35 f4...等差異不大，這幾年出的新鏡大都是18道海膽芒，要像16-35ii尖得這麼有特色恐怕很難了，現在主要期待邊緣畫質及光圈全開鬆散的問題是否能改良
### EF 24-105mm F4L IS II USM ###
Lens construction: 17 elements, 12 groups, 4 Aspherical
ASC coating
Flourine coating
10 aperture blades
4 Stop IS (Mode 1/2)
Automatic tripod recognition
Ring type USM
Full-time manual focus
Dust and weathersealing
0.45m minimum focusing distance
Maximum magnification: 0.24x
EF 12 II: 0.60x-0.12 X
EF25 II: 0.61X-0.27X
Weight 795g
Total length: 118mm
Maximum diameter: 83.5mm
Filter Size: 77mm
trochus wrote:
### EF 24-105mm F4L IS II USM ###
Lens construction: 17 elements, 12 groups, 4 Aspherical
ASC coating
Flourine coating
10 aperture blades
4 Stop IS (Mode 1/2)
Automatic tripod recognition
Ring type USM
Full-time manual focus
Dust and weathersealing
0.45m minimum focusing distance
Maximum magnification: 0.24x
EF 12 II: 0.60x-0.12 X
EF25 II: 0.61X-0.27X
Weight 795g
Total length: 118mm
Maximum diameter: 83.5mm
Filter Size: 77mm
有點意外, 光圈葉片是10片而不是9片.
阿根廷 / 中南美深度攝影: www.leandrocheng.com
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