[jameslcp]

本身用緊d80 + 35mm/1.8 支大光圈, 因為好多時係影小朋友, 室內影.....
而家發覺同小朋友出街時, 發覺50mm焦距會比較好d....所以想加多支定焦...
50mm/1.4 & 50mm/1.8
我諗好多ching 都知上面2支個price 差好遠啦, 想問吓有冇ching 用過以上2支鏡?? 有人話1.8個支d成像好過1.4 tim....請幫忙給一下意見....thx

[paulcps]

Sure 1.4 is better. Image is good if you step it down to f/2. For 1.8, image is comparable only if you step it down to f/2.8.

[jameslcp]

但700幾同2000左右既價錢相比////是否1.8入數會較化算?!

[paulcps]

Of course, it depends on your budget, and the frequencies (opportunities) and your interest to use the large aperture of f/1.4

[salaryman]

好似50.4對焦快d, 影小朋友好緊要.

[pkpartner]

you can also consider 85 1.8

[jameslcp]

85mm 個range 好似太tele 啦...

[thesims]

小弟岩岩買左支35mm f1.8

本身係新手, 第1次用定焦鏡.

星期日出街影d 近野, 唔知係咪set 個光圈太大. (好似係用f2 )
除左焦點外, 其他模糊得好緊要..反而好唔靚.

好似影雀仔咁, 焦點係個眼度. 影左出黎, 除左個頭好detail 外, 由頸開始已經模糊左..

咁35mm 係咪唔岩外景外= =?

(小弟今晚upload相,再比師兄望下.)

[salaryman]

c-hing, 我都係新手, 亦遇過同樣問題,
應該係景深o既問題. 景深厚度同光圈, 距離都有關,
http://www.dofmaster.com/dofjs.html

[hktsui]

Sigma 50 f1.4

[jameslcp]

所以我覺得室外用50MM 好D. 我用35MM影D OBJECT 大既嘢會SET 光圈到F/8 到, 好SHARP...

[GUNDAM2010]

大光圈鏡頭嘅好處,就係玩景深