50mm pictures with D300

Discussion in 'Digital Photography' started by Sosumi, Jan 21, 2008.

1. gpaleoGuest

Nothing like quoting a hundred lines of message across four newsgroups to
say "exactly"
Fer chrissakes..............

gpaleo, Jan 25, 2008

2. Dudley HanksGuest

Perspective is simply the relationship of objects closer and farther
You are refering to linear perspective here. And, there is more to it than
simply judging the size of objects.By your criteria, size is the only
indicator of distance, but what about atmospheric defraction, dispertion of
reflected light, overlapping objects, etc. If all we do is look at relative
size and then judge perspective, we wouldn't be able to come up with a shot
where two objects that look the same in the final print were actually at
different distances in the original scene. Your criteria for judging
perspective is too strict.

If we arbitrarily start with the axiom that perspective is simply the visual
affect of receding distance, then it would be hard to describe the effect
produced by capturing an identical scene with differing focal lengths. In
my opinion, one can only describe it in terms of perspective. "Distortion"
just doesn't work because the lens is not distorting the scene, it is simply
capturing it from a distinct rectilinear perspective.

Making Progress,
Dudley

Dudley Hanks, Jan 25, 2008

3. Dudley HanksGuest

Now, to mess with your mind just a bit more, what would you say, John,

Dudley Hanks, Jan 25, 2008
4. Frank essGuest

See if anyone can use these (pretty much) identical clunky push-button
panorama scenes, with differing focal lengths (17mm, 24mm, 40mm) as
the only variable, to explain what perspective /is/:

http://www.fototime.com/A4CECDE04F5A685/orig.jpg 230+K
http://www.fototime.com/A2C833A82101208/orig.jpg 290+K
http://www.fototime.com/05118D3A08195E9/orig.jpg 420+K

I think there are enough meanings of perspective that each should have
a new term to designate that instance in that context, something like
"bokeh" has been adapted and adopted to describe something a number of
previously vague or esoteric terms attempted to do for what is a real
effect.

Frank ess, Jan 25, 2008
5. Dudley HanksGuest

If we choose to stict with the perspective equals distance formula, what
term do we use to describe this affect? Angular Compression? Focal-length
Variance? I doubt these terms will catch on... They just don't do the job.

And, what would happen if we through in 100mm, 200mm and 300mm as further
test shots?

It seems that we already do have some differing terms, such as rectilinear
perspective, linear perspective, fish-eye perspectiveand panorama
perspective, but people aren't using them, nor taking the time to understand
the difference.

Do we have enough terms to cover the multitude of rhetorical permutations?
I doubt it. But, at least, we can start by trying to sort out the
differences in the terms we have, and then see if we need more.

What do you think?
Dudley

Dudley Hanks, Jan 25, 2008
6. Mr.TGuest

Well duh. So what!
And vice versa.

MrT.

Mr.T, Jan 26, 2008
7. WilbaGuest

Go back to the message I originally replied to understand what we're talking
I still win 'cos what you're talking about is irrelevant.

Wilba, Jan 26, 2008
8. Mr.TGuest

Another net cop trying to control the agenda eh?
Maybe you could go back to MY reply to understand what I was talking about.
According to you. If that's all your on about, good, luck to you!
BTW tell us what your prize was?

MrT.

Mr.T, Jan 26, 2008
9. David J TaylorGuest

Agreed, but sometimes you need to be a little more forgiving.

David

David J Taylor, Jan 26, 2008
10. WilbaGuest

Wow! Good on you for owning up to it. That takes courage and humility - well
done!
No, I don't think I need to revise, thanks.
I guess you mean "you're". The prize is outsmarting a fool, but it's a very
small prize.

It's been fun T, but I need to leave you alone now. See ya 'round.

Wilba, Jan 26, 2008
11. Mr.TGuest

I see you failed reading and comprehension at school, you have my sympathy.
Small things, small minds and all that! Good riddance.
I hope not.

MrT.

Mr.T, Jan 27, 2008