[roy_wongtc]

小弟係新手, 之前買咗d50 kit set, 想upgrade 鏡頭......
但budget有限, 想問下nikon 18-70 and sigma 18-200邊支質素好d, 對焦快d等等....
希望各位可以俾d意見, 比較下兩支鏡, or suggest 一d差唔多的鏡頭~
唔該哂!!

[Rol]

As you already have D50 kit lens, Sigma 18-200 mm quality won't be better than your kit lens.

If you want to upgrade, consider 18-70, nikon 50 F1.4, Tarmon 28-75 F2.8, Sigma 18-55 F2.8….

[奸人堅]

買返原廠好D, 因可對應i-TTL及暗景對焦準確快

[kingkonghk]

18-70DX靚過18-200好多, 不如研究下18-70dx + 70-300啦

[奸人堅]

18-70DX靚過18-200好多?

請問可否表達18-70DX靚過18-200點樣靚好多~~
thank you!

[kingkonghk]

18-70dx 18mm時四邊色散冇咁犀利, nikon o個支18-200我未用過, 唔知

[奸人堅]

kingkonghk, ic, thank you very much!!!

[walkingfuture]

I have a little bit comments.
I used D70 kit lens (18-70 DX) before and now I changed to Sigma 18-125 DC. I am very happy using this lens.
My comments between these two lens are:

18-70mm:
- fast, slient AF.
- with 2 ED lens.
- not as sharp as people said even at F8
- not as contrast as people said even at F8.

18-125mm:
- fair AF speed, but noisy.
- high contrast, high sharpness at F8! (unbeliveable!)
- light weight.
- range is perfect for walk around.

The comparasion is only based on the near price level.

[roy_wongtc]

真係唔該各位ar!!
咁我就可以唔駛再諗sigma 18-200, 因為如果差過而家支18-55......
不過其實nikon18-55 同 18-70 o係成像上會唔會有好明顯的分別?
同埋其實nikon18-70 係咪應該會sharp過sigma18-125??

[奸人堅]

nikon18-55 同 18-70 雖然理論上係有分別,
但o係成像上唔會有好大明顯的分別,除非晒大相喇...

[walkingfuture]

In my opinion, Sigma 18-125 is sharper than 18-70 lens.

[kingkonghk]

睇下邊一段, sigma 18-200@70mm時sharp過17-70dx唔出奇, 接近18mm端時就未必得, 因為變焦鏡中段係靚過頭尾段

[靚蝦王]

以前用 18-70 , 18 mm 有少少暗角...
now 用 18-55, 18mm 變形勁d....
但兩支鏡都唔係差~