[antn]

If want 淺景深, which lens is good and how much

Canon 50.8 or 50.4
Sigma 30.4 or 50.4

budget around hkd 3,000. Thanks

[50D]

canon 1.8 (~$650) or sigma 50 1.4 (~$3600)

[raylui88]

照計係 愈大光圈,焦距愈遠,愈易做到

數字上50mm F/1.4會易d

[reflexboy]

有三個factors可以控制景深!
第一, 鏡頭光圈.
第二, 鏡頭焦距.
第三, 主體同拍攝者距離.

所以事實上並唔一定係你mention o果幾枝先得! 一枝super wide angle都可以做到淺景深較果!!!

[antn]

But why sigma 30.4 can't make 淺景深 and
s50.4 or 30.4 which one is good as I know that c50.4's USM is not good. Thanks

[py32gt]

canon 50mm f1.8

[IMG]http://i117.photobucket.com/albums/o61/py32gt/IMG_0270.jpg[/IMG]

[德國佬]

龍仔果支 A09 都唔錯丫

[reflexboy]

QUOTE>>>>"But why sigma 30.4 can't make 淺景深 and
s50.4 or 30.4 which one is good as I know that c50.4's USM is not good. Thanks"

where did u get that info from?

[antn]

My plan is 500d body + a16 + c55-250 and maybe add s30.4 or s50.4 but
i am concern sigma 's 走焦問題 as I dun want waste time for a mth to cal in cs.
Do u know Sigma's 30.4, s50.4 and A16 走焦 is serious or not. Thanks

[Obi-Wan]

http://taiwan-photoschool.com/new_page_54.htm

[PROGEARTEAM]

>照計係 愈大光圈,焦距愈遠,愈易做到
數字上50mm F/1.4會易d <

師兄係咪攪錯咗,如果係咁易做到,咁d定焦遠攝鏡己做晒超大光圈啦............

[公仔佬]

個人而言...
首推: canon 1.8 (~$650)
你多錢可以買: sigma 50 1.4 (~$3600)

老老實實,我不太會影相(技術不好). 雖說f1.4 可以比較淺...但會否太淺呢?
個人覺得...最淺的境深未必太多時用到...而50mm/f1.8 其實很夠用.

另外我到有一個問題用 f1.4....可能淺到人面都未必會全清?

[50D]

不論1.8 or 1.4...在影人像時...都不會全開光圈的！
對焦一隻眼...另一隻都可能矇晒啦！

[raylui88]

>>照計係 愈大光圈,焦距愈遠,愈易做到
數字上50mm F/1.4會易d <

師兄係咪攪錯咗,如果係咁易做到,咁d定焦遠攝鏡己做晒超大光圈啦............ <

why not?超大光圈又貴又重之嘛........
鏡頭控制到既係呢2樣野..
外加被攝對像愈近相機,景深愈淺...

請問邊度搞錯??

[rickwok]

50mm影大頭當然容易景深太淺

但影全身/大半身就F1.0都會覺得吾夠淺

所以無話F1.8夠吾夠用的