n**b 发帖数: 13203 | 1 咋解释也没用,反正就是个杯具
"One of my good sources explained why the new Zeiss 24mm f/1.8 lens is so
large: “The large lenses have optics that are usable, with minimal
modification, with SLT cameras. NEX-7 is a high quality photographic tool.
Shorter size lenses would have very short distance of the rear lens element
to the film plane. With small exit lens on wide lenses there would be too
much light fallout. That is why a high quality WA lens needs to be bigger.
The problems with NEsystem. Very short flange distance is excellent for
making inexpensive, quality, small WA lenses. The problem is light fallout
at the edges of the picture –because the exit pupil of the lens would be
too small and close to the CMOS. It is the reason the new 24 mm Zeiss is so
big.” Reminder: The Zeiss will cost around $999 and it will have a 16cm
close focusing distance." | h******g 发帖数: 11250 | 2 不是说是微距么?微距镜桶不可能太短
另外E卡口直径多大?
element
【在 n**b 的大作中提到】 : 咋解释也没用,反正就是个杯具 : "One of my good sources explained why the new Zeiss 24mm f/1.8 lens is so : large: “The large lenses have optics that are usable, with minimal : modification, with SLT cameras. NEX-7 is a high quality photographic tool. : Shorter size lenses would have very short distance of the rear lens element : to the film plane. With small exit lens on wide lenses there would be too : much light fallout. That is why a high quality WA lens needs to be bigger. : The problems with NEsystem. Very short flange distance is excellent for : making inexpensive, quality, small WA lenses. The problem is light fallout : at the edges of the picture –because the exit pupil of the lens would be
| n**b 发帖数: 13203 | 3 不知道,反正人家x100没问题。
【在 h******g 的大作中提到】 : 不是说是微距么?微距镜桶不可能太短 : 另外E卡口直径多大? : : element
| h******g 发帖数: 11250 | 4 光圈比x100大
【在 n**b 的大作中提到】 : 不知道,反正人家x100没问题。
| e**n 发帖数: 5876 | 5 "The large lenses have optics that are usable, with minimal modification,
with SLT cameras. "
意思就是这个本来就是个单反头的设计, 现在加了个转接环给nex撮合用? SONY简直是
nex的后妈.
element
【在 n**b 的大作中提到】 : 咋解释也没用,反正就是个杯具 : "One of my good sources explained why the new Zeiss 24mm f/1.8 lens is so : large: “The large lenses have optics that are usable, with minimal : modification, with SLT cameras. NEX-7 is a high quality photographic tool. : Shorter size lenses would have very short distance of the rear lens element : to the film plane. With small exit lens on wide lenses there would be too : much light fallout. That is why a high quality WA lens needs to be bigger. : The problems with NEsystem. Very short flange distance is excellent for : making inexpensive, quality, small WA lenses. The problem is light fallout : at the edges of the picture –because the exit pupil of the lens would be
| d******a 发帖数: 32122 | 6 宫泽理惠们表示情绪稳定
element
【在 n**b 的大作中提到】 : 咋解释也没用,反正就是个杯具 : "One of my good sources explained why the new Zeiss 24mm f/1.8 lens is so : large: “The large lenses have optics that are usable, with minimal : modification, with SLT cameras. NEX-7 is a high quality photographic tool. : Shorter size lenses would have very short distance of the rear lens element : to the film plane. With small exit lens on wide lenses there would be too : much light fallout. That is why a high quality WA lens needs to be bigger. : The problems with NEsystem. Very short flange distance is excellent for : making inexpensive, quality, small WA lenses. The problem is light fallout : at the edges of the picture –because the exit pupil of the lens would be
| x****c 发帖数: 25662 | 7 it is the price that keeps me away.
I will be stuck with 16mm... | s******g 发帖数: 15854 | |
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