退货.

10D + Sigma 70-300mm f4-5.6 APO Vs 10D + XXB
mount on tripod, self timer, ISO 200, AV mode, center auto focus.
Only copy & paste in PS, no enhancement.

Sigma f4 @ 70mm center

[IMG]http://www.scripps.edu/~hxiong/Lenses-comparison/XXB-Sigma/f4@70mm/[email protected][/IMG]

Original file: http://www.scripps.edu/~hxiong/Lenses-comparison/XXB-Sigma/f4@70mm/[email protected]

XXB f4 @ 70mm center
[IMG]http://www.scripps.edu/~hxiong/Lenses-comparison/XXB-Sigma/f4@70mm/[email protected][/IMG]

Original file: http://www.scripps.edu/~hxiong/Lenses-comparison/XXB-Sigma/f4@70mm/[email protected]

[此贴子已经被作者于2004-8-24 4:58:21编辑过]

f11 @ 70mm

Sigma: center crop
[IMG]http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f11@70mm/[email protected][/IMG]

Original:
http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f11@70mm/[email protected]

XXB: center crop
[IMG]http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f11@70mm/[email protected][/IMG]
Original:
http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f11@70mm/[email protected]

[此贴子已经被作者于2004-8-24 5:13:31编辑过]

再看200mm @ f5.6

Sigma f5.6 @ 200mm resize:
[IMG]http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f5.6@200mm/[email protected][/IMG]

Original:
http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f5.6@200mm/[email protected]

XXB f5.6 @ 200mm resize:
[IMG]http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f5.6@200mm/[email protected][/IMG]

Original:
http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f5.6@200mm/[email protected]

200mm @ f11

Sigma f11 @ 200mm resize:
[IMG]http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f11@200mm/[email protected][/IMG]

Original:
http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f11@200mm/[email protected]

XXB f11 @ 200mm resize:
[IMG]http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f11@200mm/[email protected][/IMG]

Original:
http://www.scripps.edu/~hxiong/lenses-comparison/xxb-sigma/f11@200mm/[email protected]

也许我得到的是个坏的, 只好退/换了
不过 Sigma 70-300mm f4-5.6 II APO 很不错的,
<200$, 很值.

从你的照片看, 的确是Sigma胜出.
XXB不至于那么差吧? 好歹也是XB的堂弟啊!