>You know how couples have lotteries when a baby is about to be born?
>Guess weight, length, etc. We should do that with this lens.
>
>The two prices you mentioned are the current list prices (about) of
>the other two 400mm lenses. Seeing as the DO is new technology, I'd be
>willing to bet on the high end. Here's my *unscientific* reasoning:
>since it's an f/4, that puts it right between the f/5.6 and the f/2.8,
>so there's a minimum of let's say $3,000 right there. Add 30% for the
>new technology, and we're talking a $4,000 lens. Oh, wait, it has IS.
>How much more does the 300 f/4 with IS sell for than the one without?
>I'm thinking about $600? So add that. I bet the EF 400mm f/4 DO IS
>USM will sell for around $4,500.
>
>Ken Durling
Here's my even less unscientific reasoning (based mostly on hope...):
The diameter of this lens will be about the same as 300/2.8L IS so
that's (about 5500,- Euros, in Germany) what I use as reference.
I bet Canon will have some difficulties in handling the highlights
with the DO element, even in the final production version so that
will decrease the price.
Also, fluorite is supposed to be expensive to manufacture so lack of
it will also decrease the price compared to the 300/2.8L.
On the other hand, DO element won't be easy to make either even if
it will use separate diffraction grating molded on the glass (?).
Also the marketing value of lower weight and length can't be ignored
although that probably makes the lens mechanics cheaper to
manufacture, in fact.
So, it may start a bit more expensive but after one year the price
will be around 2/3 (or less) of the 300/2.8L, thus around 3500 Euro.
If they fix the halo-next-to-highlight -problem then it's another
story...
Hit or miss. Vesa
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