[1714joe]

70-200 F/4 IS
加上增距鏡 EF 2x II + 50D(X1.6) 焦距 = 224 - 640mm (f/8)
有冇人用過
如果影鷹成像有冇問題??

[RRR789]

最大問題 可唔可以自動對焦呢?

[Obi-Wan]

No AF on 50d, 4xxd, 5d series, some one told me that the center AF can be used on 1 Series, but I have not tried this

[jsklee]

The photo was taken with Canon 40D + 200mm/2.8L + 2 nos. of 2x teleconverter lens. The equivalent focal length was 1280mm. Handheld. Manual Focus.

[jsklee]

http://www.pbase.com/middlehill/image/107993446

[Obi-Wan]

can see

[Obi-Wan]

can't see
http://www.pbase.com/middlehill/image/107993446

[Obi-Wan]

ok lah

[1714joe]

禁既話...............咪要自己用手轉個對焦環對焦..............

[50D]

50D(X1.6) 焦距 點做到？(增倍？)

[jsklee]

yes, you have to MF manually.