D40的問題!!

可以用﹐但冇左自動對焦。

D40只有用Nikon自己AF-S的鏡頭﹐或副廠Sigma有HSM的鏡頭先可以有自動對焦。如果係Nikon AF鏡頭﹐係冇自動對焦的。

如果你想係D40上面用大光圈定焦﹐焦距同光圈比較接近的係Sigma 30mm f/1.4﹐貴少少﹐大約$2900。都係一個好選擇。

i think 可以的...不過可能要+d野 用唔到1.8 有d功能都唔係用得曬=] 下次buy果時... 問清楚先la...對自己有好處...(唔洗曬$)~~~本人用開c記 小用n記 不過講真 c記好用好多

You have to get the EOS reverse mount adapter from Novoflex. It is about US$230 for a new one. Used one in Ebay is about US$185

2007-09-09 21:07:54 補充：
First answer:I would like to know how can you even mount the lens without the adapter? There is a few mm difference in the lens ring! It is correct that you'll lose certain functions such as metering for aperture priority mode