也不負責的發了幾篇測試文,
真是辛苦了看文章的各位先進,
也感謝不吝指教的前輩們給予意見~~
今天推出的是"flying101"大大指名的SIGMA 18-50mm F2.8 EX DC vs Tamron 17~50mm F2.8 XR 比較,
這兩支鏡頭都打著APS-sized D-SLR專用恆定光圈F2.8,兼具小型與高畫質的訴求,
以下測試全程上腳架,EV值=0,測試時只調整光圈與焦距,只縮圖無銳化.
只求同一條件比較兩支鏡頭的變形與銳度,並無推薦與評分之意,
拍照時以17/18mm以及50mm兩個焦段用各個光圈值逐一拍照,
但基於比較圖片過多,所以只po出四個光圈值數的相片~~
也希望各位大大繼續給予指導!!
測試相機:Nikon D70s,全程使用自動白平衡,手動曝光,EV值=0
鏡頭:SIGMA 18-50mm F2.8 EX DC , Tamron 17~50mm F2.8 XR
測試腳架:GITZO 1157 腳架+ BENRO KB-0 球型雲台
先比大小:
望遠端加遮光罩的長度:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-064d30a802fb1ab5f394a4731db92911.jpg)
廣角端加遮光罩的長度:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-167ce93d425abf10e6be315355b30227.jpg)
Tamron 17~50mm F2.8 XR :焦距50mm,光圈2.8,快門1/80秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-61214517c5bdf4be6e60a83be14f5b40.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-6dcd063fbf63acd8c13b8ea61cfe5fd5.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-a49feeccf34fe02bfdfd9bdb32509f26.jpg)
Tamron 17~50mm F2.8 XR :焦距50mm,光圈5.6,快門1/25秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-78b02a0847bd51d3c63640887e2ed40b.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-d083399c9afd64747e12509aa7639dd6.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-45b8b0878e59a67c0a81760ea5d3037c.jpg)
Tamron 17~50mm F2.8 XR :焦距50mm,光圈11,快門1/6秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-cabafc05364f4b63d6729f4bb42e5545.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-48bfe7a9a13820448e06c8fd76ee0cf5.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-10aad12f86a7c5c7fd5b59b64b998672.jpg)
Tamron 17~50mm F2.8 XR :焦距50mm,光圈22,快門1/1.6秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-a29f3c669ff3b651ff4b84a74774ca13.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-0c21d73e586c10cc39cc7061d96c34c5.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-6cba55fbd220ba5c55d8554cb1f0e9ec.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距50mm,光圈2.8,快門1/80秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-bfd59af30510ccad30ce94ef5833746d.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-cbd194ca03829e140b01b7d864eb80eb.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-c815cb0703407878b9e8c4c3616d0095.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距50mm,光圈5.6,快門1/25秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-84b5115490817ad17d2648417694e59c.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-fb0efacae5dc1ac0da92f39fdf104a61.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-2fc471c7c20c65284b3a63fc40f12dee.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距50mm,光圈11,快門1/6秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-ece048f9ee5be768f61bb4cb30ae71b0.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-bde59abb3cade2ad5bdffd635ee8caca.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-93688ea126fc346c8c941a72ebc9d6c8.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距50mm,光圈22,快門1/1.6秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-c124c9362969786e91acda84b38c1dff.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-ab5f314c584596e1c39d7288cbee55ab.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-a2882e5b3591cd27099dc2510ecdeef7.jpg)
Tamron 17~50mm F2.8 XR :焦距17mm,光圈2.8,快門1/80秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-bb849ee2bebe130941ecc53f4532d385.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-53c16d12ce37275d04b8f88cf29a5e24.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-d8eb393969588acd4b69c9e809745d92.jpg)
Tamron 17~50mm F2.8 XR :焦距17mm,光圈5.6,快門1/25秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-4328419faa7fa43f0fe5a36c67d4a0b0.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-fccdc9d457597c208be1d862bac0f8df.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-e5b9d94dfa8bc0a295c5a7e1bcc01adb.jpg)
Tamron 17~50mm F2.8 XR :焦距17mm,光圈11,快門1/6秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-d983478d8e8eeccb64daea93d8461ddd.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-d13f03e7a4c0964add523f86d81b2cdf.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-bda0373668b729bed9a2ea6e4546ef95.jpg)
Tamron 17~50mm F2.8 XR :焦距17mm,光圈22,快門1/1.6秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-f31539fadb446759a86e9621c8984c0f.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-9c0d93bbd68d75673ace562b747a7262.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-b7744056e5d1c7dd1187cacc25764e46.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距18mm,光圈2.8,快門1/80秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-ddb4f65454ec9414a7ec7720c227b769.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-ff3f0f8d50a9d3faf05785ba70b78bf1.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-cd9b45b47d2b980f487727f9e51ac56c.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距18mm,光圈5.6,快門1/25秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-4e434528320836a25c28e345722ad40c.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-d8b6ffa0bb118121e291fd5646f5b3f5.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-dfa86621b8aa4afc7d759f190ee2114b.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距18mm,光圈11,快門1/6秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-265697b59e114bd52ddb4a235af6e8ef.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-3af4e2d09f3f510e1c998fa59069e255.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-5e1f8fdb6ccd962516200b0471cad5a5.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距18mm,光圈22,快門1/1.6秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-b727e76fe53cbbee08ba043f9d64282b.jpg)
左上角截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-c761681877ea059498b507bbcc384ef6.jpg)
中央部截圖:
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-6174991306f401e7d9ad273aaf86255b.jpg)
拍拍老大的MINI收藏:
Tamron 17~50mm F2.8 XR :焦距50mm,光圈2.8,快門1/80秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-3ae0522ac624adfeca45b9f2cf5f5439.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距50mm,光圈2.8,快門1/80秒(一樣都是50mm,大小卻不一樣?
)![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-b6a40f9bcbe17aa70392701078f12934.jpg)
Tamron 17~50mm F2.8 XR :焦距17mm,光圈2.8,快門1/80秒(邊緣變形真的
)![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-57412f3e116ef5b9fbccc3b8f1915dec.jpg)
SIGMA 18-50mm F2.8 EX DC :焦距18mm,光圈2.8,快門1/80秒
![[不專業測試-3]SIGMA 18-50mm F2.8 vs Tamron 17~50mm F2.8 XR](http://attach.mobile01.com/attach/200607/mobile01-3ca8e12db57282aeb9fbc117d2a43861.jpg)
