[forbi318]

請問各師兄有冇用過呢2支鏡, 2支都係3千幾, 但sigma有f/1.8, 我都知nikon會靚d, 唔知大家有咩意見?

1) sigma AF 20mm f/1.8 EX DG ASPH DF RF
2) nikon AF 20mm f/2.8D

[Edward_T]

以下係我既個人意見：

以咁既價錢, 如果sigma 支鏡有 1.4 光圈, 可以考慮一下
雖然 S 記後面多 d 英文字, 但講信心同實力, 我始終會揀 N 記

講返 N 記支鏡, 質素唔洗講, 唔會令你失望；手感方面, 不過用係 D70 度略嫌支鏡太短太細, 轉光圈環會頂手指, 因手柄同支鏡距離太窄

S 記果則支未用過, 冇意見

[micros]

樓上可放心﹐d70 唔 support 用光圈環轉光圈。

[forbi318]

nikon AF 20mm f/2.8D 影象會比 Nikon AF-S 17-35mm f/2.8D 更好嗎?
以同光圈..快門..焦距一樣計算
我主要係去旅行時影景

[Velsper]

17-35 始終是變焦
(不過這支是可"比美"同級定焦的一支^___^)

btw 定焦我一定選原廠
一來nikon 20 f2.8 質素/變形控制好好
二來,連定焦都唔選原廠,那當初為什要用這個body?
:D

[tc chan]

d70 唔 support 用光圈環轉光圈, 是否用副轉盤去調教。

[Velsper]

對啦,
依家nikon機主要都係用主/副轉盤去控制

[forbi318]

20mm f/2.8 唔係AFS , 跟AFS有咩唔同?
對焦會慢d定係會...??

[JKDGary]

How about Nikon 20mm 2.8D定焦 VS Nikon 20mm-35mm2.8D VS Nikon AF-S 17-35mm f/2.8D? In terms of quality, which one is the best?Thx~

[Velsper]

回forbi~
afs係指鏡頭本身有對焦馬達(所謂的超音速馬達.....)
比起普通af 鏡要由機身驅動靜, 同埋唔會因馬達本身唔同而有所分別
ps. 頂級機(f6)的機身馬達要比d70等機強得多.

[Velsper]

gary~
個人已見:
1)如果bug直夠,我想我唔會考慮20 定焦. (因為兩支真係值得有..)
2) 其它兩支都係好鏡, 不過一來20-35 未必有新品
(它是舊鏡, 感覺上發色是以前nikon的冷)
二來17-35 多了3mm用 ^ ^~~

[yzcat]

I own a 20 but not the 20-35. It is great. Information suggests that the optics of both are very good. However the closest focus distance of 20 is shorter than 20-35 and will give better perspective when shooting for close objects.

[kansonchan]

請問定焦鏡與變焦鏡有什麼好處及壞處 ?

[Philippe]

定焦質素好,變焦改變構圖方便.

[genewch]

Primes and zooms are likely for different purposes. Primes have unbeatable quality. The tradeoff is zooming by foot. Zooms are convenient. The tradeoff is price, weight and image quality. Even though zooms are handy to change focal lengths, many brilliant photographers produce excellent pictures with primes and tripods and their unique vision.

Buying which lenses most importantly depends on what you are going to use them for.