本文章最後由 r32 於 2013-6-29 09:51 編輯
Fred 發表於 2013-6-25 15:20 
r32兄如此分析也有道理 ,
面對SONY新的4K PJ , 如果是95ES之流的等級
整體而言VW1000es應該還是有優勢
avs上對傳聞中的100ES的討論也不少, 當中有位網友 (1000ES的其中一位名人用家) 的論點很有見地 :
"My problem is with reviewer variance.
Seriously, a lens can be slower, having a higher effective f stop at both ends than a similar resolving power faster (lower effective F stop) lens. This has a ten fold savings in cost just by increasing 1 F stop, say going from a 2.8 to a 4. The larger the diameter lens the larger the sweet spot too allowing the use of more lens shift without going into the area of curvature and CA . Also decreasing the number of ED or other named low dispersion glass elements can save a bundle too.
Using plastic elements can save money too. Any lens on a 4K projector should be capable of resolving the grid, the question is how clearly will each pixel be resolved across the screen, something akin to pixel sharpness of the MTF rating of the lens which is another name for contrast resolution. But once you sit a small distance away from the lens ones eyes would not be able to detect much if any difference. Its not like the lens has to be so sharp as to be able to resolve a fine CH for measurement. Before one asks, CH means Canine Hair.
Shut up and clean your mind out. No way will the lens be the same and you can take that statement to the bank.
The more of one particular lens a manufacturer uses, the better the economies of scale become. JVC switched a few years ago from a Japanese lens manufacturer to a Chinese one. They got a better price and were able because of that to get a better lens than the Japanese made one.
Sony uses a Chinese made lens for the HW50 and it is nowhere near as good as the Japanese made lens used in the 95 and 1000ES. To me, the lenses used by JVC are much better than the lenses in the sony HW50. But the lens used in the 1000ES is a whole other level above the JVC lenses. This is not a dump on the JVC lenses. They are of high quality and using the same lens on all its consumer and pro HT machines plus going out for cheaper food (Chinese over Japanese) enabled this to happen."
http://www.avsforum.com/t/143859 ... -less-than-10000/60
現在我們幾乎可以肯定鏡頭一定要降格.
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發表於 2013-6-21 17:14:25
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發表於 2013-6-21 17:17:11
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