Re: Macro panoramas with webcam
- --- In PanoToolsNG@yahoogroups.com, "erik leeman" <erik.leeman@...>
> --- In PanoToolsNG@yahoogroups.com, "panovrx" wrote:
> > PTGui says the HFOV for an image in vertical format is 46
> > which seems about right to meyield
> > Peter
> Hmmm, that's seems bit tight for a (practical) 360x180.
> It would take about 6 rows then, I 'guestimate'.
> I'd need to build a tiny tilting panohead for accurate and quick
> With a sufficiently stiff mechanical support this camera should
> quite a nice macro-VR resolution though!The Logitech Orbit Pro has motorized pan through +/- 90, tilt +/- 90.
> Erik L
So very convenient for a least half a spherical panorama -- if it
werent for the non-NPP lens motion. And it can be scripted, the
capture, I think, with the Abelcam software, but not very accurately.
If you set the capture to do very small steps, say 5 degrees, I think
you might be able to do scenes sharp to say 10cm. But I havent got
one. Ive made a little rotator from a miniature servo for the
Notebook Pro camera.
The Orbit Pro lens has the right (flat rotation on the axis of the
NPP but about 1cm forward) motion actually to capture macro stereo
panoramas in an automated (cine recording/strip extraction and
assembly in Stereophoto Maker) fashion I think. But the quality will
not be the greatest being video based
- Here is another kind of "orbit" webcam, also good for capturing panoramic views
... I've programmed it to look where I want pretty much
This movie is actually with my Logitech/Sunex webcam, being about the central 140 degrees of the fisheye view. The lighting is from the LED on the webcam -- a handy thing for closeup views, pity it is red.
--- In PanoToolsNG@yahoogroups.com, Ken Warner <kwarner000@...> wrote:
> Gotham City! The first thing I thought was Batman.
> The images stitch well.
> What if you moved the lens farther from the sensor so that you
> could take 4 around. More detail. Sharper -- maybe? Or would you
> loose focus?
> panovrx wrote:
> > Ok here is a work in progress
> > http://www.mediavr.com/bridgestmodel.htm
> > This model is very dark in sections with the available lighting and looks much more colorful (though less atmospheric) with flash -- so I will try a panorama with flash next.
> > Here btw is what it looks like with flash (with my Canon TX1 cameras)
> > http://www.mediavr.com/3d/?p=46
> > Here are some shots of the model with the standard Zeiss lens on the webcam
> > http://www.mediavr.com/modelviews/webcamviews.htm
> > Peter Murphy
> > --- In PanoToolsNG@yahoogroups.com, Ken Warner <kwarner000@> wrote:
> >>This is a great project!
> >>Can we see some stitched panos?
> >>panovrx wrote:
> >>>I've done a bit more testing with my mini-fisheye webcam (Sunex 216 minifisheye lens + Logitech Notebook Pro webcam). The No Parallax Point is close to the front of the lens -- about 2mm behind the front glass surface, about 1mm behind the beginning of the metal lens barrel.
> >>>The images stitch ok, and the image circle calibrates to about 185 (probably 187 like they say) with low a, b, c distortion values. This corresponds to the visual appearance -- which looks normal fisheye, without the edge compression of the 10.5mm Nikkor.