I think what Todd was trying to say is that fixed aperture
zoom are more expensive to manufacture, and since auto
everything cameras can easily compensate for the changing
aperture the manufactures have gone with them for all but
the very top line zoom lenses.
--Tom
Anand DHUPKAR wrote:
>
> I beg to differ. I bought my first zoom vivitar one around 20 years back.
> It was a fixed aperture one. Now here in US I bought my new camera systems
> and all I am getting are variable aperature ones. In fact, I was initially
> surprised to note that aperature varies depending on focal length while
> zooming and had to do a little work to understand why it was.
>
> I really miss that constant one.
>
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