今日騰龍推出了常用70-300mm F4-5.6鏡頭的周年紀(jì)念版，騰龍?jiān)趩畏?span onclick="sendmsg('pw_ajax.php','action=relatetag&tagname=鏡頭',this.id)" style="cursor:pointer;border-bottom: 1px solid #FA891B;" id="rlt_1">鏡頭方面的表現(xiàn)一直平平。那近日推出的產(chǎn)品性能又怎么樣那，這里與適馬的做一下比較，大家就清楚了。 gy<pN?Mw  
一、適馬鏡頭 2Sb~tTGz79  
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Lens Construction	16 Elements in 11 Groups
Angle of View	34.3° - 8.2°
Number of Diaphragm Blades	9
Mininum Aperture	f22
Minimum Focusing Distance	150 cm / 59.1 in
Filter Size (mm)	62
Maximum Magnifications	1:3.9
Dimensions /sdkQ{J!.   (Diameter x Length)	76.5 x 126.5 mm/3.0 x 5.0 in

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（2）鏡頭結(jié)構(gòu)
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圖片:搜狗截圖_2010-12-19_13-17-37.jpg

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