I've just uploaded sets of three images at different focal lengths for
Olympus Zuiko 9-18mm f4.0-5.6 and the Olympus Zuiko 14-42mm f3.5-5.6
kit lens.
Let me know if they are OK for your project or whether you want any
other style of image and whether you need any other information.
I can do the
I've just uploaded sets of three images at different focal lengths for
Olympus Zuiko 9-18mm f4.0-5.6 and the Olympus Zuiko 14-42mm f3.5-5.6
kit lens.
Let me know if they are OK for your project or whether you want any
other style of image and whether you need any other information.
I can do the
I've just uploaded sets of three images at different focal lengths for
Olympus Zuiko 9-18mm f4.0-5.6 and the Olympus Zuiko 14-42mm f3.5-5.6
kit lens.
Let me know if they are OK for your project or whether you want any
other style of image and whether you need any other information.
I can do the
I've just uploaded sets of three images at different focal lengths for
Olympus Zuiko 9-18mm f4.0-5.6 and the Olympus Zuiko 14-42mm f3.5-5.6
kit lens.
Let me know if they are OK for your project or whether you want any
other style of image and whether you need any other information.
I can do the
No, they're not straight. I threw that pic in as an "edge case" (pun
not intended). Same goes for DSC_1553.jpg :)
On Aug 4, 1:11 am, Tom Sharpless wrote:
> Thanks, Ago
>
> On Aug 3, 8:08 am, Ago wrote:> Just uploaded some shots
> taken with a Sigma 10-20 lens, which is what
> > I use for panos
Thanks, Ago
On Aug 3, 8:08 am, Ago wrote:
> Just uploaded some shots taken with a Sigma 10-20 lens, which is what
> I use for panos :)
>
Nice pictures.
Are those beams on the winery ceiling really straight?
Regards, Tom
--~--~-~--~~~---~--~~
You received this m
Hi Thomas
On Jul 29, 11:11 am, Thomas Steiner wrote:
> Tom,
>
> > Do you want the shots at differnt aperatures or just the
> > widest open or what? (I did them at f/8.0)
>
> And I saw on Thomas Niemann's website for PTLens, that for calibration
> tilted images are bad.
> Actually all my images a
Hi Bart
On Jul 29, 9:05 am, Bart van Andel wrote:
> Recently I ran into this web page:
>
> http://www.bobatkins.com/photography/technical/field_of_view.html
>
> It describes the formulas used for both rectangular and 4 types of
> fisheye lenses: equisolid, equidistant, stereographic and orthogon
Just uploaded some shots taken with a Sigma 10-20 lens, which is what
I use for panos :)
On Jul 27, 1:11 am, Tom Sharpless wrote:
> HI All
>
> Tim Nugent's summer of code project, to develop a program for
> calibrating lenses by the straight line method, has almost reached the
> point where lots
I can see if I can provide some data, esp. since I see that none of my
lenses are covered :)
My question is: how much is a “significant amount” of straight-line
data? Does a picture of an average building suffice? A bookcase?
On Jul 27, 1:11 am, Tom Sharpless wrote:
> HI All
>
> Tim Nugent's sum
Tom,
> Do you want the shots at differnt aperatures or just the
> widest open or what? (I did them at f/8.0)
And I saw on Thomas Niemann's website for PTLens, that for calibration
tilted images are bad.
Actually all my images are tilted. Does this cause problems for you as well?
http://epaperpr
Recently I ran into this web page:
http://www.bobatkins.com/photography/technical/field_of_view.html
It describes the formulas used for both rectangular and 4 types of
fisheye lenses: equisolid, equidistant, stereographic and orthogonal.
It also contains a graph plotting the associated functions
Thanks Thomas
And to answer your private question publicly, yes, we will publish the
results of our lens calibration tests.
But it may not be soon, as there is a lot of work to do, and we
haven't yet even a clear idea of what form the results should take.
Of course one way will be in terms of t
> We need photos taken with as many different lenses as possible
I uploaded some to
ftp://tksharpless.net/lenscal/thomas/
Some info about the lenses is in this directory.
Let me know if you need/want more. All lenses are of course
demountable. Do you want the shots at differnt aperatures or just
Hi Luis
On Jul 27, 11:19 am, Luís Henrique Camargo Quiroz
wrote:
>
> Hi Tom!
> Would shots taken with a handheld or with conventional tripod camera
> be useful?
>
Yes they would. We would prefer sets of several pictures taken with
each lens, but they don't have to stitchable, or even o
Tom Sharpless escreveu:
> HI All
>
> Tim Nugent's summer of code project, to develop a program for
> calibrating lenses by the straight line method, has almost reached the
> point where lots of test data are needed. So as his mentor, I am
> issuing a call for pictures to test it with.
> ...
>
>
> We need photos taken with as many different lenses as possible -- 50
> different lenses, 10 pictures from each lens, would be ideal, so
> please dig deep.
Hi Tom,
I have uploaded sets of three images (left, right, center) from a
bunch of cameras that I own here:
http://danreetz.com/for_tkshar
On 27 jul, 14:09, Bart van Andel wrote:
> You haven't mentioned how long you want the
> straight lines to be
Oh well, I spoke too soon (should've refreshed before sending)...
I know the quality of the images I sent aren't all that good, but
these were the images I have at hand. Hope they're use
Hi Tom,
I'm uploading 10 pictures right now. All but one contain a fair amount
of straight lines. You haven't mentioned how long you want the
straight lines to be, so I included both images with straight lines
all through the image and images with straight lines which only
partially cover the ima
Thank you all.
We don't yet know what is the best sort of content. We do know that
radial lines, that pass through the center of the image, are useless
for calibration, the best thing is tangential lines at various
distances from center. Clarity continuity, and length of edges is
important. Ha
Hello Tom (and Tim).
On Mon, Jul 27, 2009 at 01:11, Tom Sharpless wrote:
>
> HI All
>
> Tim Nugent's summer of code project, to develop a program for
> calibrating lenses by the straight line method, has almost reached the
> point where lots of test data are needed. So as his mentor, I am
> iss
> We need photos taken with as many different lenses as possible -- 50
> different lenses, 10 pictures from each lens, would be ideal, so
> please dig deep. Pictures with a significant amount of straight-line
> content are most important, but we need some without, too, as we have
> to be sure the
Hi Tom,
that might sound like a silly question, but what about zooms (like my
18-135)? Should I give you 10 pics at 18? At 135? In the middle?
As for the pics, I guess if I take pictures of the buildings in front of my
apartment it should be good as they're quite full of straight lines...and
some s
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