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P3D Mathphobia rationalized
- From: "Andrea Blair" <asblair@xxxxxxxxxxx>
- Subject: P3D Mathphobia rationalized
- Date: Thu, 03 Sep 1998 10:29:27 PDT
>>>>George Gioumousis wrote: I must admit I suffer from mathphilia
almost as much as the rest of the world suffers from mathphobia.
However, the tone of this thread, to me, was that looking at the theory
was a useless exercise, and that is what I object to.<<<<
There is nothing wrong with *mathphilia*, and I don't think this is an
"us against the rest of the world" issue. People enjoy math (and
everything else) in varying degrees, from none to X (you math people can
find the formula for this and fill in the "X" {:>) ).
I must disagree with your comment that this thread has had overtones of
math and theory as being useless. What I, and several others, have been
trying to (politely) say is that it it not *required* in certain
instances, such as for beginners in photography.
>>>>Let me go to the particular, on your comment that the group has
shown that we can get results even without using a meter. In my serious
photography I specialize in photographing wild-flowers with a high-end
SLR, with an auto-focussing macro lens and multiple options on auto
exposure. However, for reasons that I understand, I get much better
results turning off the auto-exposure and using the f/16 rule. What
galls me is that the f/16 rule mostly described in this group is
dead wrong. Usually, the rule is stated as 100 speed film at f/16 at
1/100 of a second. As an afterthought, it is added that this only
works between 10 am and 3 pm.<<<<
And the rest of us don't do *serious* photography? {:>) Like a lot of
things we have discussed in this forum, the "Sunny 16" *rule* is
actually a guideline to do in a pinch. It works for some situations and
doesn't for others. Like the "Rule of Thirds," "Shoot Moving Water at
less than 1/15 sec," "Use Your Hand as a Gray Card," and many other
golden *rules* of photography. All guidelines. Nothing more. Nothing
less. To apply them effectively under a broader range of circumstances -
practice, practice, practice!
What a coincidence! I also specialize in close-up flower photography,
although a lot of mine is done indoors. I also use a high-end 35mm auto
focus SLR. And I use a 100mm macro lens, but I always take it off
autofocus as I know (from experience) that I will get better results. On
the other hand, I use my camera's built in meter and get great results
98% of the time.
>>>>A little bit of thought, maybe not physics or math, should suggest
that the season, the latitude, and the position in the time zone would
affect the amount of light. I know that there are more than six hours of
f/16 in mid-summer at my latitude, and much less in mid-winter. I know
because I understand the theory, but before then I played with a
reflected light meter and a gray card, so I knew then by experiment.<<<<
You're right, of course! But in the real world, not everyone thinks of
these things as having such an impact on a simple *guideline*. Tell a
beginner that they have to take their latitude into consideration when
shooting and they'll look at you like you're nuts! Every guideline can
be expanded to consider the numerous variables. This is what we call
*experience* and *knowledge*. Practice, practice, practice! {:>)
>>>>However, I am not jealous of your getting prizes and honors for your
pictures.<<<<
Good. But I do apologize for the remark I made. It was uncalled for in
this discussion.
>>>>I mostly get annoyed at the attitude that an interest in math is
somehow weird, because it gives a bad impression to the
youngsters. On the other hand, maybe I shouldn't worry about the
younger generation, I've had students fighting to get into the math
and computer science class I'm teaching at San Jose State University.
I'm sure some of them really care, even though a lot of them are
mainly interested in it as a requirement for graduation.<<<<
Why do you get the impression that I (or anyone else here) think math is
weird? And I never said it gives a bad impression to youngsters (where
did that come from?). Would it surprise you to know that math was not
only my favorite subject in school, but my best one? I actually enjoy
it. I just don't feel it has to be obsessively applied to the simplest
of tasks. Oh, yeah, I'm also a computer geek.
>>>>I do bring a few slides to a stereo club in this area, mainly
because I like to see them projected, but in the process they get
entered in the competition, and once in a while I place someplace.
Nice, but I don't take the pictures for the glory.<<<<
First and foremost, I take pictures because I enjoy photography. Always
have, and, presumably, always will. The "glory" and the awards are just
icing on the cake. Not necessary, but really, really nice. {:>)
I also take my images to our club to see them projected. We have a
"Show-n-Tell" portion in our program for members to share their images.
This is the most enjoyable part of our meeting to me. I get to see what
my stuff looks like (good time to check for mounting errors) and, even
better, I get to see what my 3-D comrades have been doing. I only wish
that more members would share their images.
>>>>Then, right now some of my flat pictures are getting published in an
article about my wife's California Native Plant garden, which is
also nice.<<<<
That's great! Congratulations (to you both). It is nice to see the
product of your efforts in print, isn't it? (After three covers and
three articles with photos, I still enjoy seeing my work in print)
As this thread is winding down, I would like to take this time to thank
all of our *mathphiles* (?) for their contributions, especially Tom
Deering and his spreadsheets. There has been a plethora of information
and references provided to aid those who wish to go "beyond the basics"
and explore the meaning behind the *rules*. With your expertise and
knowledge, the rest of us now know where to look to find the answers we
seek now or may seek at some future time.
Just don't force it down our throats and we won't stick our heads in the
sand! {:>)
THANKS, gang. This has been really interesting. I may even play with a
few formulas (but I'm not telling any of you! {:>) )
Andrea S. Blair
asblair@xxxxxxxxxxx
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End of PHOTO-3D Digest 2948
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