[my_M6]

請問有無師兄可以幫幫手！

因為我發現支鏡在低光度的環境下，如體育館或黃昏時間左右，不能對焦。

除以上情況，對焦都快而準，完全沒有問題。
請問何解？會否因為350D同支鏡唔match。

[hanny]

we are not sure how dark is it so can not say any think

but i can say in dark place nikon is little bit better for focusing

and also normally if you are focuing the close object the flash light will check the focus object to make it easy to focus so did you turn the light on for focusing ??
if you are useing the ex580 the infra will also help you to check the color and light feeling and make you more easy to focus in the dark


and if nikon the body with a light for you to focus the object but the light is not like canon using the flash light in nikon is using the focus check light for focusing

[beancurdbean]

低光度的環境下, 350D 對焦比較難, 可以用閃燈輔助

[my_M6]

I have already used the flash to acc the focusing.
I am using Sigma SP500 ETTL II.
While I focus the object, the flash have pre-flash.
How dark is it? That's the time of sun-set, can you guess
about the darkness.

I have tried to change the 50 f1.2 prime lens for focusing.
It's a little better then 24-105.

[hanny]

may be the 50mm lens is least than the 24-105 and becasue 24-105 with is

[Philippe]

留意閃燈輔助對焦的距離是很有限的.而且用內閃效果一時時,用外閃的紅燈會穏定很多.