[takhome]

本人係用50D, 剛買入第一支L鏡Canon EF 17-40mm f/4.0L USM, 但試完後比50D支KIT鏡Canon EF-S 17-85mm f4-5.6 IS USM 還差!!

用同一個SETTING用一個光圈快門, 但相片放大後KIT鏡比17-40明顯清晰!
嘗試了鏡頭微調, 但只是好了一點! 為何這樣??

是否2支鏡質素分別不大? 還是我拿支17-40去cal??
THX!~

[romje]

你而家先知會唔會遲左?

[look_yau]

去cal

[look_yau]

post 相

[Obi-Wan]

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=100&Camera=474&Sample=0&FLIComp=1&APIComp=0&LensComp=251&CameraComp=474&SampleComp=0&FLI=2&API=0

[photowing]

係唔係手震?有無用腳架?

[MDLP]

15-85拋離17-40仲誇張

Canon EF-S 15-85mm f/3.5-5.6 IS USM Lens - Canon EF 17-40mm f/4.0 L USM

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLIComp=0&APIComp=0&LensComp=100&CameraComp=474&SampleComp=0&FLI=0&API=1

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLI=1&API=0&LensComp=100&CameraComp=474&SampleComp=0&FLIComp=2&APIComp=0

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLI=2&API=0&LensComp=100&CameraComp=474&SampleComp=0&FLIComp=4&APIComp=1


Canon EF-S 15-85mm f/3.5-5.6 IS USM Lens - Canon EF-S 17-85mm f/4-5.6 IS USM

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLIComp=0&APIComp=0&LensComp=251&CameraComp=474&SampleComp=0&FLI=0&API=1

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLIComp=3&APIComp=1&LensComp=251&CameraComp=474&SampleComp=0&FLI=3&API=2

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLIComp=5&APIComp=1&LensComp=251&CameraComp=474&SampleComp=0&FLI=5&API=1


Canon EF-S 15-85mm f/3.5-5.6 IS USM Lens - Canon EF-S 17-55mm f/2.8 IS USM

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLIComp=0&APIComp=1&LensComp=398&CameraComp=474&SampleComp=0&FLI=0&API=1

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLIComp=3&APIComp=2&LensComp=398&CameraComp=474&SampleComp=0&FLI=2&API=2

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLIComp=4&APIComp=2&LensComp=398&CameraComp=474&SampleComp=0&FLI=3&API=2


Canon EF-S 15-85mm f/3.5-5.6 IS USM Lens - Canon EF-S 18-55mm f/3.5-5.6 IS Lens

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?CameraComp=0&FLIComp=0&APIComp=0&Lens=675&Camera=474&Sample=0&FLI=0&API=0&LensComp=455

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLI=1&API=0&LensComp=455&CameraComp=474&SampleComp=0&FLIComp=1&APIComp=0

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLIComp=4&APIComp=1&LensComp=455&CameraComp=474&SampleComp=0&FLI=3&API=2


Canon EF-S 15-85mm f/3.5-5.6 IS USM Lens - Canon EF-S 18-200mm f/3.5-5.6 IS Lens

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?CameraComp=0&FLIComp=0&APIComp=0&Lens=675&Camera=474&Sample=0&FLI=0&API=0&LensComp=476

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLIComp=2&APIComp=1&LensComp=476&CameraComp=474&SampleComp=0&FLI=3&API=0

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=675&Camera=474&Sample=0&FLI=5&API=1&LensComp=476&CameraComp=474&SampleComp=0&FLIComp=3&APIComp=2

[tuettuet]

maybe 17-40 doesnt' have IS and ur hand does shake a little?

i used to have the same problem as u when i bought my 17-40 a month ago, i often get pictures that's over exposed when i use Av mode
try taking more picutres and practice to get the hang of ur lens, now i m getting much better quality pictures, cheers

[MDLP]

係要A/B先知分別

[火Ken]

17-40L差過17-85mm IS？？你映咩發覺？？

[叮噹仔]

如果只係講sharp
無人話L鏡一定sharp過非L鏡???

只可以肯定既係L鏡有防水滴設計,
鏡身造工好, 成色好.

[look_yau]

好似差唔多

[dssale]

技術先決

[rayhk1]

你將17-85關左is試下密知係咪手震問題

[wllui]

EF-S機, 不如試下之前師兄果支15-85啦, 可能比17-40還實用