>> Julian Loke wrote: ...
>> I think the central sensor only detects horizontal lines when
>> using your 75-300 lens or the 28-135 IS
"F. Craig Callahan" <[EMAIL PROTECTED]> wrote: ...
> 5) Interestingly, it doesn't say anything about lenses whose "native"
> maximum aperture is smaller than f/4 but at least as large as f/8: for
> example, it mentions the 400/5.6L with 1.4x extender, but not by itself.
> In other words, no mention is made regarding at what maximum aperture
> the horizontal-line sensors (other than the center sensor) become
> inactive. However, a quick, informal test using the 20-35/3.5~4.5 shows
> that the the peripheral sensors are still sensitive to
> horizontal lines at 35 mm - f/4.5, so perhaps they don't go inactive
> until f/5.6 or even f/6.7.
> ...
> Got that? I suspect that the technical writer who wrote this didn't
> fully understand whatever explanation was offered up by the engineers--
> perhaps someone with a 1V could check the manual for a less obscure
> explanation. . . .
Hi FCC,
Clear as mud, I think...
With your 20-35 f/3.5-4.5 set to f/4.5, will your EOS 3 focus on
vertical-only detail with ANY of the 45 sensors?
Cheers
Julian Loke
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