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標題: Tamron A 18-270mm pzd...new one better or Canon 18-200mm better?? [打印本頁]

作者: donnysam 時間: 2011-6-12 12:12 AM 標題: Tamron A 18-270mm pzd...new one better or Canon 18-200mm better??

Tamron A 18-270mm pzd...new one better or Canon 18-200mm better??

作者: ookii 時間: 2011-6-12 02:59 AM

我會選原廠. 之後放返出去都高價D

作者: klfmarcus01 時間: 2011-6-17 10:51 PM

有錢就用原廠鏡,省錢的就用雜牌,可以帶架機影幾張至决定!

作者: milito 時間: 2011-6-17 11:26 PM

本身機用本身的鏡頭就最好~

作者: donnysam 時間: 2011-6-19 12:27 AM

thx...i already buy la....canon 18-200mm

作者: moxfactor 時間: 2011-6-19 12:35 AM

如果好用我會選tamron. 呢支鏡係天涯王, 連N/C記既DX鏡都比下去.

如果睇二手價值, 咁當然係C記會高啲, 但係如果睇二手價值來玩相機, 咁你只係一個玩家. 兩者價錢差唔到一千. 我用緊非PZD舊版, 有時為求方便會用上full frame機上. 12MP轉落8MP, 不過啲相出來非常sharp. PZD版因為比舊版輕, 可能會容易啲手震, 不過呢樣唔係問題. 另外, 買時一定要試鏡. PZD版聽講有部份鏡有VC問題, 開VC後影乜都唔清. check清楚先買~ 有少部份鏡, 如Sigma 50 f1.4, Sigma 150mm f2.8 macro, Tamron 18-270, 為求相片quality, 一定唔會買比下去的N/C記同級鏡. 真係影相既人係唔應該對副廠有偏見. 好鏡就係好鏡.

作者: ddr 時間: 2011-6-19 10:14 AM

check out the MTF charts @ photozone.de

作者: donnysam 時間: 2011-6-19 11:10 AM

thx...moxfactor ...u let me know more of that

作者: donnysam 時間: 2011-6-19 11:16 AM

thx...moxfactor ...u let me know more of that

作者: moxfactor 時間: 2011-6-21 02:53 AM

check out the MTF charts @ photozone.de
ddr 發表於 2011-6-19 10:14 AM

sure! lets try all the worst circumstances

Tamron 18-270(test with 60D) - Canon 18-200 EF-S(test with 60D) - Nikon 18-200 DX(test with D7000)

barrel distortion at 18mm: (smaller number better)
T -3.88% - C -4.48% - N -4.13%
Canon loses

vignetting at 18mm: (smaller number better)
T 1,02 - C 1,48 - N 1,19
Canon loses

MTF (borders) at 18mm: (bigger number better)
T 1757 - C 1703 - N 1932
Canon loses

MTF (borders) at 200mm: (bigger number better)
T 1503 - C 1597 - N 2025
Tamron loses but can go further to 270mm...

Chromatic Aberrations (smaller number better)
at 18mm f3.5:
T 1.6 - C 1.28 - N 1.48

at 200mm f5-5.6
T 2.82 - C 2.45 - N 2.11
Tamron loses in across the board with CA~

which is not a big deal when it's pretty even across the board.

their verdict: "All-in-all the lens may be a tad better than Canon's 18-200mm f/3.5-5.6 IS..."

overall, Tamron is a winner, although not by much, but very comparable to similar offerings from Nikon and Canon, and it has the added advantage of 201-270mm range that neither Nikon nor Canon can match.

作者: gto9999 時間: 2011-6-23 10:13 PM

Tamron A 18-270mm好用的旅遊鏡...不過畫質就普普囉..

作者: moxfactor 時間: 2011-6-23 10:48 PM

天涯鏡有邊支唔係"普普"?

作者: donnysam 時間: 2011-6-24 11:27 PM

where to buy got cheaper?...i ask DSC is the cheaper shop the sell tamron 18-270mm....price is hkd 5060

作者: moxfactor 時間: 2011-6-25 02:05 AM

not sure, i bought my non-PZD version in Cam2. picked 3 before settle on a good one. always check lens thoroughly before buying. esp. 3rd party lens have lots of QC problems.

作者: donnysam 時間: 2011-6-26 11:54 PM

thx q, u all

作者: johnchow01 時間: 2011-6-29 06:32 PM

thans a lot

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