canon鏡頭一問

參考資料
70 -250mm焦距,
如350D,400D,40D用的焦距鏡頭一樣要x1.6.
EF 及EF-S 鏡頭一樣可用,平鏡有
EF-S 55 -250m m f/4-5.6 IS ($1700)
EF 75 -300mm f/4.0-5.6 III USM ($1500)
Sigma AF 70 -300mm F4.0-5.6 APO DG Macro ($1500)
最好應該是EF-S 55 -250m m f/4-5.6 IS

貴鏡有
EF 70 -200mm f/ 2.8 L IS USM ($13000)
EF 70 -200mm f/ 2.8 L USM ($8700)
EF 70 -200mm f/4 L IS USM ($8400)
EF 70 -200mm f/4 L USM ($5300)
EF 70 -300mm f/4.0-5.6 IS USM ($4200)

Tokina AT-X 80-200mm f/2.8 Canon & Nikon Mount
Tamron AF 18-250mm f/3.5-6.3 XR Di II Zoom 變焦
Tamron AF28-300mm F/3.5-6.3 XR VC (Vibration Compensation) Di LD Aspherical (IF) Macro
Sigma AF 18-200mm f/3.5-6.3 DC OS Zoom 變焦