最近我买了1.25X, 近距离聚焦的时候, 眼睛没那么累了.这在拍”喇嘛的厨房”的时候,或许更爽.拍这片的时候, 不是那么从容, 因为不知道喇嘛们是否会干涉, 但是自己又怕前景色的聚焦不好, 于是那紧张就别提了. 拍完后直后悔没带珍珠明目液.
有了1.25X也许会更舒服一点.
喇嘛的厨房
[4]50mm f/2.8 Elmar-M( 最近拍摄距离0.7米)
"Close-up performance of the Elmar-M is excellent at full aperture."
近摄表现在全开光圈时非常优秀
[体会之四]
借用朋友的这镜头拍过一张试镜片, 是在室内台灯旁边拍的, 感觉还不错.聚焦很容易. 考虑到弱光场景时, F2.8似乎不够大
[5]50m f/2 Summicron-M (current) ( 最近拍摄距离0.7米)
"Close-up performance of the Summicron-M is on the same level as the performance at infinity setting (actually infinity is that distance where the incoming light rays are parallel to the optical axis. For most lenses this condition is satisfied at about 100 times the focal length)."
近摄表现与无穷远时相当(事实上, 无穷远处的光线是平行光轴入射的. 对多数镜头而言,大约100倍焦距的物距时, 入射光满足这一条件).
[体会之五]
看来这是一只可以放心在交谈距离拍摄的镜头. 有不少朋友向我推荐过这只镜头,也试着装在机器上看了看, 这只镜头很朴实, 小巧可爱, 实用的时候应该不会太过引人注意.
[6]50mm f/1.4 Summilux-M( 最近拍摄距离0.7米)
"Close-up performance shows crisp rendering of fine details from f/2.8. Close-ups at full aperture are to be avoided if very good imagery is required"
近摄表现出F2.8细节演绎不足.如果要求好的影象,那么要避免用大光圈近摄
[体会之六]
看来若是弱光环境, 交谈距离拍摄表现不太好
[7]50mm f/1 Noctilux-M( 最近拍摄距离1.0米)
"Close-up pictures (±1 meter pr 3’3”) at full aperture should be considered carefully, as the very shallow depth of field
will produce a razor thin sharpness plane with very fuzzy out of focus planes."
要慎重考虑在全开光圈下近摄(一米左右),因为很浅的景深会造成锐利无比的焦平面, 焦外很模糊.
[体会之七]
没用过, 不知其甘苦.推测:若能克服聚焦的辛苦, 那么一定是弱光,交谈距离拍摄的利器.不过那硕大的体积和接近其它镜头两倍的重量实在外出不方便, 而且容易引人注意. 在记实拍摄的时候也许不方便.
[7]Summilux-M 1:1.4/50mm ASPH( 最近拍摄距离0.7米)
"For the first time in a Leica M lens, a ‘floating element’ is used to maintain imaging performance even in close-focus ranges down to 0.7m"
作为第一次在LEICA M系镜头应用, 浮动元件维系了影响在近摄距离到0.7米的影象表现.
"The floating element improves the quality in the near focussing range. Reduction in image quality will normally occur around the distance of 3 meters and less with high-speed lenses. The floating element does correct this reduction quite effectively, but to a certain limit. When you are in the close up distances from 0.7 to about 1 meter, the floating element can improve matters quite a bit, but then at the wider apertures we get soft images. For best quality in this focusing range, we need to stop down to /5.6 or smaller to get good imagery. We should not imagine that with the floating element, we get a high-speed lens with near macro capabilities. We should stay realistic in our demands. What the floating element accomplishes, is a visual improvement of the quality in the outer zones and a contrast improvement from 1 meter to 3 meters, where the wider apertures will now perform at the optimum of the lens."
其中的浮动元件改善了近焦范围内的象质。使用高速镜头时,影象质量下降通常会发生在被拍摄主体位于三米以内。浮动元件在有限的程度上为此做了相当有效的矫正。当你在0。7米到1米的近距离时,浮动元件能够对影象质量做不少改善,但是在较大的光圈时,我们得到的影象变柔。在这个聚焦范围内为了得到最好的影象质量,我们需要把光圈收小到F/5。6或更小。我们不能够想象因为有了浮动元件,我们就有了一个能力巨大的高速镜头。我们应该停留在需求的现实中。 浮动元件所起到的作用是, 明显改善影象边缘区域象质,提高在1米到3米的范围内聚焦时的影象反差(较大光圈表现在该镜头的优化位置中)。
看来50/1.4的近摄能力要搞好不容易啊. 这新头费了这么大的劲才敢说”当你在0。7米到1米的近距离时,浮动元件能够对影象质量做不少改善,但是在较大的光圈时,我们得到的影象变柔。”
所以, EP的测试总结说最好买一只50mm f/2,8 Elmar-M作为近摄的补充.看来在50焦段, 弱光下交谈距离拍摄处在两难的境地了.真要两只一起下手?
[总结]
根据以上的体会, 看来在”照顾到弱光场景下交谈距离拍摄”的配置应该是:
经济实用型:
24 mm f/2.8 Elmarit-M ASPH
35 mm f/1.4 Summilux-M ASPH
50m f/2 Summicron-M
豪华型:
24 mm f/2.8 Elmarit-M ASPH
35 mm f/1.4 Summilux-M ASPH
50mm f/1 Noctilux-M
超级FB型:
24 mm f/2.8 Elmarit-M ASPH
35 mm f/1.4 Summilux-M ASPH
Summilux-M 1:1.4/50mm ASPH
50mm f/2,8 Elmar-M
重要申明:
-1-以上体会纯粹是40度高烧烧成的胡话, 别当真.
-2-英文资料来源于<< LEICA M-LENSES>> ERWIN PUTS