請問各位前輩,我目前使用70D的機身+17-55的原廠鏡,
最近想要入手中長距離的鏡頭,主要拍攝對象是打棒球的兒子,
原本鎖定胖白或騰龍A005,後來又看到Tamron 16-300mm F/3.5-6.3 DiII VC PZD MACRO
和Sigma 18-300mm F3.5-6.3 DC MACRO OS HSM這兩顆多了廣角端的鏡頭,
想說這樣就不用帶2顆鏡頭了,不知道上述的鏡頭在望遠端的畫質和對焦,
追焦的速度哪一支比較優,還是大家有更推薦的鏡頭,謝謝
給大大參考一下距離,機身同為APS-C的7D2,拍攝位置為洲際球場本壘正後方第一排的座位
打擊區135mm

投手丘200mm

打擊者特寫220mm (SIGMA 120-300mm F2.8 DG OS HSM Sport)

捕手特寫235mm (SIGMA 120-300mm F2.8 DG OS HSM Sport)

投手特寫300mm (SIGMA 120-300mm F2.8 DG OS HSM Sport)

大大的兒子應該不是職棒選手吧

如果是白天比賽那光圈就不用太顧慮,所以樓主所提的鏡頭應該都夠用且可以涵蓋內野投打的範圍,並一鏡到底同時拍拍場邊花絮
但小弟沒用過,所以不知道畫質與對焦速度如何
如果要放棄一機一鏡,並且可以等的話,新推出的大白兔應該是不錯的選擇
diffusionless wrote:
不解? 出處?不管E...(恕刪)
您誤會了
我是寫(類)天然螢石的FLD玻璃 並非說那4片是天然螢石
蛍石と同等の性質を持つFLD※(“F” Low Dispersion)ガラス4枚と、
SLD(Special Low Dispersion:特殊低分散)ガラス1枚を採用。
特にFLDガラスは、分散性が極めて小さく、異常分散性が高い「蛍石」と同等の性能を持つ、透過率に優れた超低分散ガラスです。
天然螢石當然無法那麼大片而無雜質 這些我知道!!!
http://www.sigma-global.com/en/lenses/cas/product/contemporary/c_18_300_35_63/features.html
Exclusive low-dispersion glass
The degree to which light is refracted by glass depends on the light's wavelength. This fact causes different colors of light to focus at slightly different points. The result is chromatic aberration, the color fringing that is particularly noticeable in telephoto lenses. Most chromatic aberration can be removed by combining a high-refractivity convex lens element with a low-refractivity concave element. Yet residual chromatic aberration known as “secondary spectrum” may still remain.To minimize this secondary spectrum, which can be a serious issue with conventional lenses, SIGMA lenses feature up to three types of exclusive low-dispersion glass offering superior performance: ELD (Extraordinary Low Dispersion), SLD (Special Low Dispersion) and FLD (“F” Low Dispersion). In particular, FLD glass offers ultra-low dispersion in combination with high transmittance and the anomalous dispersion characteristics of fluorite. Meticulous deployment of these types of exclusive low-dispersion glass and optimization of power distribution gives SIGMA lenses superlative image rendition undiminished by residual chromatic aberration.
謝謝指正