01-28-2015, 01:04 PM
Quote:Well, it is not an f-number which "dictates" the price, but rather the amount of glass and the difficulty to produce that glass which sets the price of a lens.I like a laugh,, you know how it is!
This patent filing possibly shows how the 11-24mm f4 is constructed:
http://egami.blog.so-net.ne.jp/2014-01-25
This is what the lens itself looks like:
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Looking at that big and very curved front element, one can imagine where the money goes...