[Panda1802]

如在40D,用小小白IS + Ext EF 2x, 打雀可以嗎?效果如何,有沒有Ching可以告知,不過,光圈只有f/8.

[godz]

會冇咗自動對焦

[tam_dominic]

可以在 香港公園 鳥籠影

[老叟]

完全無問題,對焦勁快,不過我用1D!!!!

[Panda1802]

是否冇咗自動對焦

[Ison]

師兄睇完下底條link 唔明再問. enjoy .

http://dcfever.com/forum/read.php?f=12&i=65541&t=65541&phorum_auth=dfb4979ad6a109f57c2529b3882f2e10&page=1

[MN56]

小小白應該只加1.4X去影，然後再crop相。

[HKCCK]

同意樓上

[Panda1802]

EF 70-300 f/4-5.6,焦距不是更遠嗎?如小小白+1.4x,也是280,不過70-300這支的評價好像不太好,是嗎?

[Obi-Wan]

EF 70-300 f/4-5.6 vs EF 70-200mm f/4.0 L IS USM + 1.4X

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=237&Camera=453&Sample=0&FLI=4&API=1&LensComp=404&CameraComp=453&SampleComp=0&FLIComp=5&APIComp=0

[Panda1802]

Obi-Wan兄,這個圖表是如何看的?

[Obi-Wan]

Select the lens u want, select f value, repeat on another lend

use your mouse to slide over the picture