Sorry, I wasn't thinking clearly and used a circle of confusion value
appropriate to an APS size digital sensor. The E-thing sensor is
smaller and requires a more rigorous CoC value or half what you'd use
for 35mm film.
With a tighter CoC I compute
f/4 f/5.6 f/8 f/11
----- ----- ----- -----
hyperfocal 9.7 6.9 4.9 3.6
distance
in feet
If, as I guess, f/5.6 is somewhere near optimal for performance of the
14-54 at 14mm you can focus at about 7 feet and get evertyhing from 3.5
feet to infinity in sharp focus. Even with the more restrictive CoC
you've still got depth of field galore. Happy landscaping.
Chuck Norcutt
Chuck Norcutt wrote:
> At 14mm you don't need to be worrying about DOF. Even at f/4 the
> hyperfocal distance is just 7.8 feet. When the camera is focused at
> that distnace everything from half that distance (3.9 feet) to infinity
> is in focus.
>
> At f/5.6 the hyperfocal distance is 5.6 feet and at f/8 it's 3.9 feet.
> For a landscape I'd shoot at f/5.6 or thereabouts which is probably near
> the optimal performance for the lens.
>
> Chuck Norcutt
>
> James Royall wrote:
>
>
>>I've had a search through emails I've saved and more widely can't find
>>this. I stuck my E300 on a tripod (a rare event in itself) with the
>>14-54 at 14mm on it. Going for some max depth of field (another relative
>>novelty) I went for f16, but find the results soft. I then remembered
>>(of course, after the event) that I didn't need to go to such a small
>>aperture as the DOF is increased and that I shouldn't go to small
>>apertures because of the said diffraction. So how small do you all go in
>>a wide-angle-landscape-type scenario with some foreground?
>>
>>James
>
>
>
> ==============================================
> List usage info: http://www.zuikoholic.com
> List nannies: olympusadmin@xxxxxxxxxx
> ==============================================
>
>
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|