Re: [PanoToolsNG] Macro panoramas with webcam
- I looked at the specs -- it has autofocus and I guess some kind
of exposure control. I wonder if those features could be disabled and
if that would help to get constant exposures?
> Trouble with dinosaurs --
> the little guy is about 8mm high and the viewpoint is about 1.5cm off
> the ground
> I have been wanting to do some panoramas of ants, architectural models
> etc and so did a test with the smallest camera I have -- a Logitech
> Notebook Pro. I attached a large washer under the camera with Bluetak,
> traced its outline on paper and rotated and shifted the camera with
> that as a guide til I found the No Parallax Point. It stitched ok --
> this is three shots in vertical format = about 100 degrees cylindrical.
> The image quality with the Zeiss lens on this webcam is good. It is
> just a pity there is no aperture to get more depth of field. But it
> will give you a lower viewpoint than almost anything (except a borecam).
> The Logitech Orbit actually has motorized pan and tilt, but the
> rotation is not NPP and it is not quite as small as the Logitech
> Notebook Pro, but the optics etc are the same.
> Peter Murphy
- 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.