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Dudley Hanks wrote:
| "Troy Piggins" <usenet-0804@[EMAIL PROTECTED]
> wrote in message
| news:20080421142342.759@[EMAIL PROTECTED]
|> * Dudley Hanks wrote:
|>> "Paul Furman" <paul-@[EMAIL PROTECTED]
> wrote in message
|>> news:1LSOj.21076$%41.20856@[EMAIL PROTECTED]
|>>> Troy Piggins wrote:
|>>>> Hadn't thought about the hyperfocal DOF - I understand the theory
|>>>> but at my skill level it's probably the last thing that occurs to
|>>>> me.
|>>> It doesn't occur to me much either but us critics have the advantage
of
|>>> hindsight :-) Maybe I'll remember next time too.
|>>>
|>>>> I still have to think about lighting, composition,
|>>>> whitebalance, aperture etc - I surprised myself to use the trees
|>>>> for framing ;) Good advice though. I'll file it away for next
|>>>> time a similar op****tunity arises.
|>>>>
|>>>> Thanks Paul!
|>> Depending on your camera, hyperfocal is one of those things that can
be
|>> difficult for auto-everything cameras to accomplish. My A720 seems to
|>> default to a hyperfocal type focus strategy, only deviating from it
when
|>> the
|>> subject is really close. Of course, with its smaller sensor, almost
|>> evrything is almost always in focus...
|>>
|>> The Rebel XT is a bit different. It has a nice setting where the
camera
|>> trys to figure out what is most likely to be the subject, or subjects,
|>> and
|>> then trys to keep it all in focus, ****fting the background out of
focus
|>> if
|>> necessary / possible (the ADepth setting). But, using aperture
priority
|>> or
|>> shutter priority, hyperfocusing seems to be a bit of a challenge when
|>> there
|>> is something close up front you'd rather not ****ft into a blur.
|>>
|>> For those of us who still yearn for "the good ole days" once and a
while,
|>> hyperfocusing was really easy to do with most manual focus cameras. A
|>> good
|>> ****tion of my shots were taken using that strategy...
|> <snip />
|>
|> I actually have a DOF calculator on my XDA/phone which calculates
|> depth of field and hyperfocal distance for whatever camera
|> body/sensor, focal length, aperture, and working distance you
|> choose to input. It's basically a Windows Mobile version of
|> http://www.dofmaster.com/dofjs.html
|>
|> Of course, it needs to occur to me at the time to use
|> hyperfocusing for all that to be any use... :)
|>
|> --
| Now, that is handy. All I got with my phone is a digital voice recorder
| that holds about 2 minutes of sound.
|
| Take Care,
| Dudley
|
|
Depth of field and Hyperfocal isn't going to help that image. It has
substantial rectilinear distortion not even decent software is going to
fix. Whatever lens he used it need to see the inside of a garbage can.
- --
from Douglas,
If my PGP key is missing, the
post is a forgery. Ignore it.
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